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China Good quality Spherical Bearing 627 – 2RS Ball Bearing Miniature Deep Groove Ball Bearing deep groove ball bearing

Product Description

Bearing deep groove ball bearing production could be used on Motorcycle, Home Electronics, Motor. All inspection is 100% by automatic.Our products are widely used in electric motors, automobiles, motorcycles, household appliances, textile, electric tools and water pump equipment industries, both locally and globally.
 

Bearing Parameter

Model  627-2RS Sealing material Nitrile rubber
Measuring system Metric system Dynamic radial load 2700
Bearing type Ball Static radial load 1100
Seal type Rubber seal cover Max speed (rpm) 20000
Inside diameter 7 mm Load direction Radial
ID tolerance -0.008 – 0 mm Temperature range  -30 – 110 ºC
Outer diameter 22 mm Clearance range 0.002 – 0.013 mm
OD tolerance -0.008 – 0 mm Structural Single row
Width 7 mm Ball diameter 3.9690mm
Width tolerance -0.12 – 0 mm Number of balls 7
Ring material Bearing steel(GCR15) weight 13.1g
Ball material Bearing steel(GCR15) Cage material Metal bracket

 

Bearing Show

Product description 

Deep groove ball bearings are the most typical rolling bearings with  the characteristics of simply designed structures,convenience in operation and extensive applications. They are designed as non-separable  bearings. The raceways in both of the rings are in arc groove form, which can carry radical load and double directions axial load. They are of features of low friction factor, high limit rotational speed and can be applied in situations where high-rotating speed and low noise and low vibration are required. Applications of thses bearings can be found in automobiles, machine tools, motors, instruments, construction machines, railway vehicles, agricultural machines and various other special machines. 
 

About Us

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Contact Angle: 15°
Aligning: Non-Aligning Bearing
Separated: Unseparated
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:

  • Design and Geometry:

Deep Groove Ball Bearings:

Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.

Angular Contact Ball Bearings:

Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.

  • Load Carrying Capacity:

Deep Groove Ball Bearings:

Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.

Angular Contact Ball Bearings:

Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.

  • Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.

  • Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.

  • Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

ball bearing

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?

Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:

  • Deep Groove Ball Bearings:

Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.

  • Angular Contact Ball Bearings:

Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.

  • Self-Aligning Ball Bearings:

Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.

  • Thrust Ball Bearings:

Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.

  • Single-Row vs. Double-Row Bearings:

Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.

  • Miniature and Instrument Ball Bearings:

Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.

  • Max-Type and Conrad Bearings:

Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.

  • High-Precision Ball Bearings:

High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.

  • High-Speed Ball Bearings:

High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.

In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.

China Good quality Spherical Bearing 627 - 2RS Ball Bearing Miniature Deep Groove Ball Bearing deep groove ball bearingChina Good quality Spherical Bearing 627 - 2RS Ball Bearing Miniature Deep Groove Ball Bearing deep groove ball bearing
editor by CX 2024-04-17

China Standard Needle Roller Bearing Needle Roller and Cage Assemblies Track Roller Bearing Cam Follower Angular Contact Ball Bearing Spherical Roller Bearing bearing air

Product Description

 

Basic Features of Needle Roller Bearing
Types Needle Roller and Cage Assemblies
Drawn Cup Needle Roller Bearings
Thrust Needle Roller Bearings
Needle Roller Bearings with Rings
Material Bearing Steel(GCr15, 100Cr6)
SPCC St14
Nylon
Bronze
Dimension Metric and Inch
Dimension Range 3mm~200mm(bore diameter)
MOQ 1
Delivery Time 15-45 days
Sea Ports ZheJiang HangZhou HangZhou

Why Choose HECTO?
1. More than 20 years of manufacturing and exporting experiences
2. an IATF16949 company
3. 100% inspecting of products
4. More competitive prices with better quality
5. More than 99% of delivery in time
6. Rapid response of your emails and questions
7. Products can be traced back

 
 
 
 

Needle Roller and Cage Assemblies

Shaft Bearing No. Boundary Dimensions(mm) Basic Load Rating(N) Limiting Speed
Fw Ew Bc Cr Cor Oil(RPM)
3 K3X5X7TN 3 5 7 1540 1290 50000
K3X5X9TN 3 5 9 1710 1480 48000
K3X6X7TN 3 6 7 1430 970 47000
4 K4X7X7TN 4 7 7 2330 1840 43000
K4X7X10TN 4 7 10 2350 1920 39000
5 K5X8X8TN 5 8 8 2300 1880 37000
K5X8X10TN 5 8 10 2800 2450 37000
6 K6X9X8TN 6 9 8 2500 2240 35000
K6X9X10TN 6 9 10 3300 3100 35000
K6X10X13TN 6 10 13 3500 2800 33000
7 K7X10X8TN 7 10 8 2750 2550 32000
K7X10X10TN 7 10 10 3350 3400 32000
8 K8X11X8TN 8 11 8 3000 2900 30000
K8X11X10TN 8 11 10 3830 3950 30000
K8X11X13TN 8 11 13 5000 5700 30000
K8X12X10TN 8 12 10 4900 4600 30000
9 K9X12X10TN 9 12 10 4200 4700 30000
K9X12X13TN 9 12 13 5500 6700 30000
10 K10X13X10TN 10 13 10 4500 5250 27000
K10X13X13TN 10 13 13 6000 7600 27000
K10X13X16TN 10 13 16 6300 7800 27000
K10X14X10TN 10 14 10 7000 7900 27000
K10X14X13TN 10 14 13 8000 9100 26000
K10X16X12TN 10 16 12 7000 9300 27000
12 K12X15X9TN 12 15 9 4120 5210 25000
K12X15X10TN 12 15 10 4320 5730 25000
K12X15X13TN 12 15 13 6000 8100 25000
K12X16X8TN 12 16 8 1200 4700 25000
K12X16X10TN 12 16 10 6000 6900 25000
K12X16X13TN 12 16 13 7900 9200 25000
K12X17X13TN 12 17 13 9300 10000 24000
K12X18X12TN 12 18 12 9800 8000 24000
K12X15X20TN 12 15 20 8200 12000 25000
14 K14X17X10 14 17 10 5100 6800 23000
K14X17X17 14 17 17 9300 14000 23000
K14X18X10 14 18 10 6800 8300 23000
K14X18X13 14 18 13 8100 9800 23000
K14X18X14 14 18 14 9200 12000 23000
K14X18X15 14 18 15 10000 13000 23000
K14X18X17 14 18 17 10500 13900 23000
K14X20X12 14 20 12 9900 10500 22000
15 K15X18X14 15 18 14 7500 11000 23000
K15X18X17 15 18 17 9600 15900 23000
K15X19X10 15 19 10 7200 9000 22000
K15X19X13 15 19 13 8300 9800 22000
K15X19X17 15 19 17 10300 15000 22000
K15X19X24 ZW 15 19 24 12800 25710 22000
K15X22X13 15 22 13 9700 11000 22000
K15X22X12 15 22 12 10000 13000 22000
K15X21X15 15 21 15 13800 16000 22000
K15X21X21 15 21 21 18000 24000 22000
16 K16X20X10 16 20 10 7600 9700 22000
K16X20X13 16 20 13 8700 11300 22000
K16X20X17 16 20 17 11200 16300 22000
K16X21X10 16 21 10 9000 12000 22000
K16X22X12 16 22 12 11000 12000 21000
K16X22X13 16 22 13 12000 13400 21000
K16X22X16 16 22 16 14300 17000 21000
K16X22X20 16 22 20 18000 22300 21000
K16X23X14 16 23 14 19000 21000 19000
K16X24X20 16 24 20 21100 23000 20000
17 K17X21X10 17 21 10 7900 15710 21000
K17X21X13 17 21 13 10000 14100 21000
K17X21X17 17 21 17 12000 17400 21000
K17X23X14 17 23 14 11000 15000 21000
18 K18X22X10 18 22 10 8200 9900 20000
K18X22X13 18 22 13 9000 12100 20000
K18X22X17 18 22 17 11900 17600 20000
K18X24X12 18 24 12 11200 12900 20000
K18X24X13 18 24 13 12900 14900 20000
K18X24X13.5 18 24 13.5 12900 14900 20000
K18X24X20 18 24 20 20000 26500 20000
K18X25X14 18 25 14 16500 18800 20000
K18X25X22 18 25 22 22900 28400 20000
K18X26X14 18 26 14 18000 20000 18000
K18X28X16 18 28 16 19000 18400 19000
19 K19X23X13 19 23 13 9300 13000 20000
K19X23X17 19 23 17 12000 18600 20000
20 K20X24X10 20 24 10 8700 12100 19000
K20X24X12 20 24 12 9600 13800 19000
K20X24X13 20 24 13 9600 13800 19000
K20X24X17 20 24 17 12400 20000 19000
K20X26X12 20 26 12 13100 15700 19000
K20X26X16 20 26 16 18000 25000 18500
K20X26X17 20 26 17 18700 25500 19000
K20X26X20 20 26 20 20600 28500 19000
K20X28X20 20 28 20 23400 28000 18000
K20X28X25 20 28 25 30000 28500 18000
K20X30X30 20 30 30 35000 41000 18000
21 K21X25X13 21 25 13 9600 14500 19000
K21X25X17 21 25 17 12800 21000 19000
22 K22X26X10 22 26 10 8700 12900 18000
K22X26X13 22 26 13 10000 15400 18000
K22X26X17 22 26 17 13100 22100 18000
K22X27X13 22 27 13 14000 23000 18000
K22X28X17 22 28 17 19000 26500 18000
K22X28X23 22 28 23 20000 27000 19000
K22X29X16 22 29 16 19500 25000 17000
K22X30X15TN 22 30 15 19600 22900 17000
K22X30X20 22 30 20 21000 23500 18900
K22X32X24 22 32 24 33500 39500 16000
23 K23X35X16TN 23 35 16 24000 23400 15000
24 K24X28X10 24 28 10 9400 14300 17000
K24X28X13 24 28 13 10500 17000 17000
K24X28X17 24 28 17 14000 24500 17000
K24X29X13 24 29 13 13100 19100 16000
K24X30X17 24 30 17 19000 27000 16000
K24X30X31 24 30 31 27000 43000 16000
25 K25X29X10 25 29 10 9700 14900 16000
K25X29X13 25 29 13 10800 17900 16000
K25X29X17 25 29 17 14500 25500 16000
K25X30X13 25 30 13 14100 21300 16000
K25X30X20 25 30 20 21100 28000 16000
K25X30X25 25 30 25 21700 40400 15000
K25X30X26 25 30 26 25710 26500 15000
K25X31X17 25 31 17 19000 28000 16000
K25X31X21 25 31 21 24100 37500 16000
K25X32X16 25 32 16 20500 27500 15000
K25X33X20 25 33 20 28000 37500 15000
K25X33X24 25 33 24 33900 46500 15000
K25X34X18 25 34 18 48000 67000 15000
K25X35X30 25 35 30 46500 61500 14000
K25X30X26 ZW 25 30 26 21000 35000 14000
26 K26X30X10 26 30 10 9500 15500 16000
K26X30X13 26 30 13 11100 18700 16000
K26X30X17 26 30 17 14700 27000 16000
K26X31X13 26 31 13 12400 18400 15000
K26X30X22 26 30 22 15200 28000 16000
27 K27X32X17 27 32 27 16000 34000 17000
28 K28X32X16.5 28 32 16.5 15000 32400 14000
K28X32X17 28 32 17 15000 32400 14000
K28X33X13 28 33 13 14800 23600 14000
K28X33X17 28 33 17 19100 33000 14000
K28X33X27 TN 28 33 27 22800 40500 14000
K28X34X17 28 34 17 21300 35000 14000
K28X35X16 28 35 16 21000 29000 14000
K28X35X18 28 35 18 23500 33500 14000
K28X35X20 28 35 20 24000 34000 14000
K28X35X27 28 35 27 34500 54500 14000
K28X36X16 28 36 16 34000 47000 11000
K28X40X18 28 40 18 33000 36500 12000
K28X40X25 28 40 25 45000 54500 12000
30 K30X33X10 30 33 10      
K30X34X13 30 34 13 11800 21200 13000
K30X35X13 30 35 13 15100 25000 13000
K30X35X17 30 35 17 19100 33500 13000
K30X35X26 30 35 26      
K30X35X27 30 35 27 30000 58500 13000
K30X37X16 30 37 16 22500 33000 13000
K30X38X25 30 38 25 16000 390000 13000
K30X39X21 30 39 21      
K30X40X18 30 40 18 31500 39500 12000
K30X40X27 30 40 27      
K30X40X30 30 40 30 48500 68500 13000
K30X35X26 30 35 26 23500 43500 12000
K30X42X44.1 30 42 44.1      
32 K32X37X13 32 37 13 15000 25000 12000
K32X37X17 32 37 17 19400 35000 12000
K32X37X27 32 37 27 29500 59500 12000
K32X37X28 TN 32 37 28 23100 43000 12000
K32X38X16 32 38 16 21000 34000 12000
K32X38X20 32 38 20 26000 44500 12000
K32X38X26 TN 32 38 26 27000 46500 12000
K32X39X16 32 39 16 23500 35000 12000
K32X39X18 32 39 18 26000 40500 12000
K32X40X20 32 40 20 37000 40500 12000
K32X40X36 32 40 36 53500 91500 12000
K32X46X32 32 46 32 65500 82500 11000
K32X40X42 TN 32 40 42 49500 83500 12000
35 K35X40X13 35 40 13 15800 27500 11000
K35X40X17 35 40 17 20300 38000 11000
K35X40X25 35 40 25 29000 59500 11000
K35X40X27 TN 35 40 27 24500 48000 11000
K35X40X27 35 40 27 27800 62100 11000
K35X40X30 35 40 30 25000 49500 11000
K35X42X16 35 42 16 23900 37000 11000
K35X42X18 35 42 18 27000 42500 11000
K35X42X30 35 42 30 38500 67500 11000
K35X43X18 35 43 18 28000 41500 11000
K35X45X20 35 45 20 36500 49500 10000
K35X45X30 35 45 30 52500 78500 10000
K35X45X49 35 45 49 81500 13400 10000
K35X40X30 ZW 35 40 30 31500 65500 11000
K35X42X20 ZW 35 42 20 29500 48500 11000
36 K36X41X30 36 41 30 23000 43000 11000
K36X42X16 36 42 16 24000 42000 11000
37 K37X42X17 37 42 17 21900 42500 10000
K37X42X27 37 42 27 31500 67500 10000
K37X45X26 37 45 26 43500 73500 10000
38 K38X43X17 38 43 17 20000 38000 10000
K38X43X27 38 43 27 31000 67500 10000
K38X46X20 38 46 20 35000 56500 10000
K38X46X32 38 46 32 54500 98500 10000
39 K39X44X24 39 44 24 28000 58500 10000
K39X44X26 ZW 39 44 26 27000 55500 10000
40 K40X44X13 40 44 13 13500 28000 10000
K40X45X13 40 45 13 17100 32000 10000
K40X45X17 40 45 17 20900 41000 10000
K40X45X21 40 45 21 24400 49500 10000
K40X45X27 40 45 27 32500 72500 10000
K40X46X17 40 46 17 24500 44500 9000
K40X47X18 40 47 18 29000 49500 9000
K40X47X20 40 47 20 32000 56500 9000
K40X48X20 40 48 20 35500 58500 9000
K40X45X30 ZW 40 45 30 26000 53500 9000
42 K42X47X13 42 47 13 17300 33000 9000
K42X47X17 42 47 17 21100 42500 9000
K42X47X25 TN 42 47 25 27000 57500 9000
K42X47X27 42 47 27 33000 74500 9000
K42X48X35 42 48 35 35000 76000 9000
K42X50X18 42 50 18 31000 49500 9000
K42X50X20 42 50 20 34500 56500 9000
K42X47X30 ZW 42 47 30 31000 75500 9000
43 K43X48X17 43 48 17 21000 42500 9000
K43X48X27 43 48 27 33000 74500 9000
K43X50X18 43 50 18 30500 53500 8000
45 K45X49X19 45 49 19 17500 40000 8000
K45X50X17 45 50 17 22000 45000 8000
K45X50X27 45 50 27 34000 79500 8000
K45X50X32 TN 45 50 32 38000 90500 8000
K45X52X18 45 52 18 31000 56500 8000
K45X52X21 TN 45 52 21 39500 57500 8000
K45X53X20 45 53 20 38500 66500 8000
K45X53X21 45 53 21 38000 66500 8000
K45X53X22 45 53 22 42000 66500 8000
K45X53X28 45 53 28 51500 97500 8000
K45X59X18 TN 45 59 18 43500 53500 7000
K45X59X32 45 59 32 72500 101500 7000
K45X59X36 45 59 36 75500 108500 7000
K45X51X36 ZW 45 51 36 44500 98500 7000
47 K47X52X17 47 52 17 22800 48500 8000
K47X52X27 47 52 27 34500 82500 8000
K47X53X25 47 53 25 38000 81500 8000
K47X55X28 47 55 28 52500 99500 7500
48 K48X54X19 48 54 19 30000 60500 7500
K48X54X25 48 54 25 31000 91000 7500
50 K50X55X13.5 50 55 13.5 17500 36000 7500
K50X55X17 50 55 17 21400 46500 7500
K50X55X20 50 55 20 26000 59500 7500
K50X55X30 50 55 30 38500 96500 7500
K50X57X18 50 57 18 33000 62500 7000
K50X58X20 50 58 20 35000 61500 7000
K50X58X25 50 58 25 43500 80500 7000
52 K52X57X12 52 57 12 17500 36000 7000
55 K55X60X20 55 60 20 28000 65500 6500
K55X60X27 55 60 27 37500 96500 6500
K55X60X30 55 60 30 40500 10300 6500
K55X61X20 55 61 20 41000 11000 6500
K55X62X18 55 62 18 35000 69500 6500
K55X63X15 55 63 15 245000 40500 6500
K55X63X20 55 63 20 39500 73500 6500
K55X63X25 55 63 25 49500 99500 6500
K55X63X32 55 63 32 61500 129500 6500
K55X60X40ZW 55 60 40 48000 132000 6500
56 K56X61X20 56 61 20 27000 64500 6500
58 K58X63X17 58 63 17 21500 63500 6000
K58X64X19 58 64 19 24500 77500 6000
K58X65X18 58 65 18 34500 69500 6000
K58X65X38ZW 58 65 38 48500 106500 6000
60 K60X65X20 60 65 20 29000 71500 6000
K60X65X30 60 65 30 42000 115500 6000
K60X68X20 60 68 20 43000 84500 5500
K60X68X23 60 68 23 49000 100500 5500
K60X68X25 60 68 25 52500 110500 5500
K60X68X27 60 68 27 59000 120500 6000
K60X75X42 60 75 42 11300 19200 5500
K60X66X33ZW 60 66 33 45500 111500 6000
K60X66X40ZW 60 66 40 57500 150500 5500
K60X68X30ZW 60 68 30 44000 87500 5500
K60X68X34ZW 60 68 34 47500 95500 5500
62 K62X70X40ZW 62 70 40 65500 145500 5500
63 K63X70X21 63 70 21 45000 100500 5500
64 K47X70X16 64 70 16 27500 59500 5500
65 K65X70X20 65 70 20 30000 76500 5500
K65X70X30 65 70 30 43500 93500 5500
K65X73X23 65 73 23 45500 93500 5000
K65X73X30 65 73 30 56500 122500 5000
68 K68X74X20 68 74 20 35000 83500 5000
K68X74X30 68 74 30 46000 117500 5000
K68X74X35 ZW 68 74 35 48000 124500 5000
K68X75X20 68 75 32 53500 127500 4500
70 K70X76X20 70 76 20 35500 85500 4500
K70X76X30 70 76 30 51500 138500 4500
K70X78X25 70 78 25 51500 111500 4500
K70X78X30 70 78 30 59500 134500 4500
K70X80X30 70 80 30 72500 147500 4500
K70X78X46 ZW 70 78 46 77500 18800 4500
72 K72X80X20 80 20 41000 84500 4500  
73 K73X79X20 73 79 20 36500 99500 4500
75 K75X81X20 75 81 20 37000 93500 4500
K75X81X30 75 81 30 51500 142000 4500
K75X83X23 75 83 23 49500 108000 4000
K75X83X30 75 83 30 91500 142000 4000
K75X83X35 ZW 75 83 35 62500 146500 4000
K75X83X40 ZW 75 83 40 72500 176500 4000
80 K80X86X20 80 86 20 38000 97500 4000
K80X86X30 80 86 30 55500 158500 4000
K80X88X30 80 88 30 71500 178500 4000
K80X88X40 ZW 80 88 40 75500 191500 4000
K80X88X46 ZW 80 88 46 87500 23000 4000
85 K85X92X20 85 92 20 44000 15710 3500
90 K90X97X20 90 97 20 44500 112500 3000
K90X98X27 90 98 27 60500 149500 3000
K90X98X30 90 98 30 67500 171500 3000
95 K95X102X20 95 102 20 45500 122500 2900
K95X103X30 ZW 95 103 30 68500 179500 2900
K95X103X40 ZW 95 103 40 82500 227500 2900
100 K100X107X21 100 107 21 47500 126500 2700
K100X108X27 100 108 27 56500 142500 2700
K100X108X30 100 108 30 70500 187500 2700
105 K105X112X21 105 112 21 47000 126500 2500
K105X113X30 105 113 30 71500 196500 2500
110 K110X117X24 110 117 24 55500 157500 2300
K110X118X30 110 118 30 77500 218500 2300
115 K115X123X27 115 123 27 63000 170000 4100
K115X125X35 115 125 35 63000 170000 4100
K115X125X40 115 125 40 65000 175000 4100

Drawn Cup Needle Roller Bearings(Metric and Inch)

Bearing No. Boundary Dimensions(mm) Basic Load Ratings(N) Limiting Speed
HK BK Fw  D C Cr Cor Oil(RPM)
HK0306TN BK0306TN 3 6.5 6 1320 950 60000
HK0408TN BK0408TN 4 8 8 1540 1070 40000
HK0509 BK0509 5 9 9 2200 1790 36000
HK0608 – 6 10 8 1830 1550 32000
HK0609 BK0609 6 10 9 2650 2400 30000
HK0708 – 7 11 8 2800 2150 27000
HK0709 BK0709 7 11 9 2800 2150 27000
HK0808 BK0808 8 12 8 2550 2400 21000
HK571 BK571 8 12 10 3700 3450 21000
HK08×14×10 – 8 14 10 3800 3950 25000
HK08×14×12 – 8 14 12 4100 4320 25000
HK571 BK571 9 13 10 4050 4250 25000
HK571 – 9 13 12 5000 6000 25000
HK1571 BK1571 10 14 10 3900 4800 19000
HK1012 BK1012 10 14 10 5000 6300 19000
HK1015 – 10 14 15 6700 7800 19000
HK10×16×10 – 10 16 10 6800 8800 18000
HK10×16×12 – 10 16 12 6800 8800 18000
HK10×16×15 – 10 16 15 6800 8800 19000
HK1210 BK1210 12 16 10 4150 5800 19000
HK1212 BK1212 12 18 12 3800 5100 15000
HK12×17×12 – 12 17 12 5100 7000 15000
HK12×17×15 – 12 17 15 5100 7000 15000
HK12×17×18 – 12 17 18 5100 7000 15000
HK12×18×12 BK12×18×12 12 18 12 550 6300 17000
HK1312 BK1312 13 19 12 6200 7100 17000
HK13.5×20×12 – 13.5 20 12 6250 7590 16000
HK1412 – 14 20 12 6800 7500 14000
HK1416 – 14 20 16 7300 9000 14000
HK15×20×12 – 15 20 12 5800 6000 14000
HK15×20×16 – 15 20 16 6000 6200 14000
HK15×20×20 – 15 20 20 6100 6400 14000
HK1512 BK1512 15 21 12 7000 8400 14000
HK1514 – 15 21 14 8500 10400 13000
HK1515 – 15 21 15 9100 11400 13000
HK1516 BK1516 15 21 16 9800 11400 14000
HK1522 – 15 21 22 10400 16500 14000
HK15×22×12 – 15 22 12 14300 18400 13000
HK1612 BK1612 16 22 12 7100 9200 14000
HK1614 – 16 22 14 8800 9900 12000
HK1616 BK1616 16 22 16 15710 14300 14000
HK1622 – 16 22 22 11100 17400 14000
HK1712 – 17 23 12 6900 9300 13000
HK1714 – 17 23 14 6800 15710 10000
HK1716 – 17 23 16 8500 12500 10000
HK1718 – 17 23 18 9500 10600 10000
HK17×25×14 – 17 25 14 13100 147000 10000
HK17×25×18 – 17 25 18 9500 10600 11000
HK1812 – 18 24 12 7100 9900 12000
HK1816 BK1816 18 24 16 10600 15300 12000
HK2571 – 20 26 10 5900 7200 10000
HK2014 – 20 26 14 9700 18100 9000
HK2016 BK2016 20 26 16 11700 29100 10000
HK2018 – 20 26 18 7900 12800 9000
HK2571 – 20 26 20 13700 24000 10000
HK2030 – 20 26 30 21800 40000 15710
HK20×27×20 – 20 27 20 26300 47800 9900
HK2210 – 22 28 10 7200 9500 1571
HK2212 BK2212 22 28 12 8100 10400 1571
HK22×29×30 – 22 29 30 19400 33100 9000
HK2512 BK2512 25 32 12 10000 14200 9000
HK2525 BK2525 25 32 25 22200 36700 9000
HK2816 BK2816 28 35 16 15400 22500 8700
HK2820 BK2820 28 35 20 18900 32000 8700
HK3012 BK3012 30 37 12 15710 16200 8100
HK3571 BK3571 30 37 20 19700 33500 8100
HK3224 – 32 39 24 25500 5200 7300
HK3516 BK3516 35 42 16 15700 27500 7100
HK4012 BK4012 40 47 12 14000 24300 6300
HK4512 BK4512 45 52 12 12900 22500 5800
HK5571 BK5571 50 58 20 28000 60000 5300
HK6012 BK6012 60 68 12 12400 29000 4100
               
SCE BCE Fw  D C Cr Cor Oil(RPM)
SCE44 BCE44 6.35 11.112 6.35 1602 1157 35000
SCE45 BCE45 6.35 11.112 7.94 2536 2092 35000
SCE55 BCE55 7.938 12.7 7.94 2892 2625 29000
SCE65 BCE65 9,525 14.288 7.94 2892 2417 25000
SCE67 BCE67 9,525 14.288 11.11 4361 4583 25000
SCE87 BCE87 12.7 17.462 11.11 5918 7387 19000
SCE88 BCE88 12.7 17.462 12.7 6897 9033 19000
SCE810 BCE810 12.7 17.462 15.88 8811 12237 19000
SCE95 BCE95 14.288 19.05 7.94 4049 4717 18000
SCE96 BCE96 14.288 19.05 9.52 5162 6408 18000
SCE98 BCE98 14.288 19.05 12.7 7698 1 0571 18000
SCE910 BCE910 14.288 19.05 15.88 9434 14017 18000
SCE912 BCE912 14.288 19.05 19.05 1571 16465 18000
SCE108 BCE108 15.875 20.638 12.7 8743 12015 16000
SCE1571 BCE1571 15.875 20.638 15.88 10368 16242 16000
SCE1012 BCE1012 15.875 20.638 19.05 12015 19802 16000
SCE116 BCE116 17.462 22.225 9.52 5740 7976 15000
SCE1210 BCE1210 19.05 25.4 15.88 12682 17577 13000
SCE1212 BCE1212 19.05 25.4 19.05 15352 22250 13000
SCE1312 BCE1312 20.638 26.988 19.05 16571 23585 12000
SCE148 BCE148 22.225 28.575 12.7 11125 15797 11000
SCE1412 BCE1412 22.225 28.575 19.05 16910 27145 11000
SCE1516 BCE1516 23.812 30.162 25.4 24030 43165 11000
SCE168 BCE168 25.4 31.72 12.7 12682 19135 10000
SCE1612 BCE1612 25.4 31.72 19.05 18571 30260 10000
SCE1616 BCE1616 25.4 31.72 25.4 24920 45390 10000
SCE188 BCE188 28.575 34.925 12.7 12905 25717 9000
SCE1812 BCE1812 28.575 34.925 19.05 18912 33375 9000
SCE1816 BCE1816 28.575 34.925 25.4 25810 49395 9000
SCE2012 BCE2012 31.75 38.1 19.05 21137 39605 8000
SCE2016 BCE2016 31.75 38.1 25.4 27145 54735 8000
SCE2212 BCE2212 34.925 41.275 19.05 21360 42750 7500
SCE2216 BCE2216 34.925 41.275 25.4 27590 59185 7500
SCE2416 BCE2416 38.1 47.625 25.4 38715 66305 6500
SCE2816 BCE2816 44.45 53.975 25.4 41385 75650 6000
SCE3220 BCE3220 50.8 60.325 31.75 55180 115700 5000

Thrust Needle Roller Bearings(Metric and Inch)

Bearing No.  Boundary Dimensions(mm) Basic Load Ratings(N) Limiting Speed
Dc1 Dc Dw Ca Coa Oil(RPM)
AXK571TN 4 14 2 4450 8000 18000
AXK571TN 5 15 2 4750 9200 17000
AXK0619TN 6 19 2 6800 15500 16000
AXK0821TN 8 21 2 7800 19400 15000
AXK1571 10 24 2 9200 25500 14000
AXK1226 12 26 2 9900 29000 13000
AXK1528 15 28 2 11300 36000 11000
AXK1730 17 30 2 11900 39500 10000
AXK2035 20 35 2 13100 46500 8500
AXK2542 25 42 2 14700 58000 7000
AXK3047 30 47 2 16300 70000 6000
AXK3552 35 52 2 17800 81000 5500
AXK4060 40 60 3 28000 114000 4700
AXK4565 45 65 3 30000 128000 4300
AXK5070 50 70 3 32000 143000 3900
AXK5578 55 78 3 38000 186000 3500
AXK6085 60 85 3 44500 234000 3200
AXK6590 65 90 3 46500 255000 3000
AXK7095 70 95 4 54000 255000 2900
AXK75100 75 100 4 55000 265000 2700
AXK85715 80 105 4 56000 280000 2600
AXK85110 85 110 4 58000 290000 2400
AXK90120 90 120 4 73000 405000 2300
AXK100135 100 135 4 91000 560000 2000
AXK110145 110 145 4 97000 620000 1900
AXK120155 120 155 4 157100 680000 1700
AXK130170 130 170 5 133000 840000 1600
AXK140180 140 180 5 138000 900000 1500
AXK150190 150 190 5 143000 960000 1400
AXK165710 160 200 5 148000 1571000 1300
             
NTA411 6.35 17.45 1.984 4100 9100 28000
NTA512 7.93 19.05 1.984 4600 11100 25000
NTA613 9.52 20.63 1.984 4800 12100 23000
NTA815 12.7 23.8 1.984 5700 16200 19000
NTA916 14.27 25.4 1.984 6200 18200 18000
NTA1018 15.88 28.58 1.984 7000 22500 16000
NTA1220 19.05 31.75 1.984 7800 27000 14000
NTA1423 22.23 36.51 1.984 10400 40900 12000
NTA1625 25.4 39.68 1.984 10700 43900 11000
NTA1828 28.58 44.45 1.984 13500 60900 9800
NTA2031 31.75 49.21 1.984 16400 80900 8800
NTA2233 34.92 52.38 1.984 17400 89400 8200
NTA2435 38.1 55.56 1.984 18900 157100 7700
NTA2840 44.45 63.5 1.984 20600 119600 6900
NTA3244 50.8 69.85 1.984 19500 115200 6200
NTA3446 53.98 73.02 1.984 19900 119600 5900
NTA3648 57.15 76.2 1.984 25710 123600 5700
NTA3650 57.15 79.38 3.175 32900 168100 5300
NTA4052 63.5 82.55 1.984 20700 132100 5200
NTA4458 69.85 92.08 3.175 41700 242400 4600
NTA4860 76.2 95.25 1.984 21900 149400 4500
NTA5266 82.55 104.78 3.175 44900 279700 4000
NTA6074 95.25 117.48 3.175 48900 326400 3500
NTA6681 104.78 128.58 3.175 55600 395400 3200

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Cage: With Cage
Rows Number: Double
Load Direction: Radial Bearing
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ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:

  • Design and Geometry:

Deep Groove Ball Bearings:

Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.

Angular Contact Ball Bearings:

Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.

  • Load Carrying Capacity:

Deep Groove Ball Bearings:

Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.

Angular Contact Ball Bearings:

Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.

  • Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.

  • Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.

  • Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

ball bearing

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?

Lubrication plays a critical role in the performance and lifespan of ball bearings. Proper lubrication ensures smooth operation, reduces friction, minimizes wear, and prevents premature failure. Here’s how lubrication impacts ball bearings:

  • Friction Reduction:

Lubrication creates a thin film between the rolling elements (balls) and the raceways of the bearing. This film reduces friction by separating the surfaces and preventing direct metal-to-metal contact. Reduced friction results in lower energy consumption, heat generation, and wear.

  • Wear Prevention:

Lubricants create a protective barrier that prevents wear and damage to the bearing’s components. Without proper lubrication, the repeated rolling and sliding of the balls against the raceways would lead to accelerated wear, surface pitting, and eventual failure.

  • Heat Dissipation:

Lubricants help dissipate heat generated during operation. The rolling elements and raceways can generate heat due to friction. Adequate lubrication carries away this heat, preventing overheating and maintaining stable operating temperatures.

  • Corrosion Resistance:

Lubrication prevents moisture and contaminants from coming into direct contact with the bearing’s surfaces. This helps protect the bearing against corrosion, rust, and the formation of debris that can compromise its performance and longevity.

  • Noise Reduction:

Lubricated ball bearings operate quietly because the lubricant cushions and dampens vibrations caused by the rolling motion. This noise reduction is crucial in applications where noise levels need to be minimized.

  • Seal Protection:

Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.

  • Improved Efficiency:

Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.

  • Lifespan Extension:

Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.

  • Selection of Lubricant:

Choosing the right lubricant is essential. Factors such as speed, temperature, load, and environmental conditions influence the choice of lubricant type and viscosity. Some common lubricant options include grease and oil-based lubricants.

  • Regular Maintenance:

Regular lubrication maintenance is crucial to ensure optimal bearing performance. Bearings should be inspected and relubricated according to manufacturer recommendations and based on the application’s operating conditions.

In summary, proper lubrication is essential for the optimal performance, longevity, and reliability of ball bearings. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and contributes to smooth and efficient operation in various industrial and mechanical applications.

China Standard Needle Roller Bearing Needle Roller and Cage Assemblies Track Roller Bearing Cam Follower Angular Contact Ball Bearing Spherical Roller Bearing bearing airChina Standard Needle Roller Bearing Needle Roller and Cage Assemblies Track Roller Bearing Cam Follower Angular Contact Ball Bearing Spherical Roller Bearing bearing air
editor by CX 2024-04-16

China high quality Hot Sale Wheel Bearing 6002 2RS Deep Groove Ball Bearing bearing and race

Product Description

Product Description

BEARING INNER RING
A steel ball with a common steel ball or roller rolling on the outer surface of the inner ring.
RUBBER SEALAFTER CODE: RS 2RS Z ZZ
The sealing material is made of skeleton rubber and has good dust-proof effect, which can prevent any foreign matter from invading and dust and water in a harsh environment. 

Main Features1.Bearing moves very Fast & Quiet, with very smooth hand feeling
2.High precision, long life, low noise
3.High-end technology
4.Good after-sales service

Company Profile

HangZhou CZPT Machinery Technology Co., Ltd is industry and trade company which modern enterprise integrating scientific research, development, manufacture and trading. Based on integrity, responsibility and cooperation, our company have professional R&D and sales team, providing one-stop service for customers. Our company mainly products is Bearing, Jack Hammer,  Screw Air Compressor,  Piston Air Compressor and Other Machinery Hardware Product etc.

After many years of production and research and development, we have obtained more than 20 national patents. The products are sold at home and abroad and are well received by customers. Our products sold at home and abroad, after get the self-managemert import and export rights, our products are exported to Vietnam, Indonesia, Philippines, Cambodia, Pakistan, Afghanistan and other countries and regions.

 

Application

 Electric motors and generators
 Agriculture
 Material handling
Industrial transmissions
Food and beverage
Industrial pumps
Industrial fans
Two and 3 wheelers
Cars and light trucks 

Packaging & Shipping

 

Customer feedback

FAQ

Q1: Are you factory or trade company?
A1: We are factory. And we have our own trading company.

Q2: What the exactly address of your factory?
A2: Our company is located in Xihu (West Lake) Dis. East Road, Xihu (West Lake) Dis. District, HangZhou, ZHangZhoug, China.

Q3: Will you provide some spare parts of the machines?
A3: Yes, of course.

Q4: What about the voltage of products? Can they be customized?
A4: Yes, of course. The voltage can be customized according to your equipment.

Q5: Which payment term can you accept?
A5: 30% T/T in advance, 70% T/T against the B/L copy.

Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome.

Q7: Which trade term can you accept?
A7: Available trade terms: FOB, CIF, CFR, EXW, CPT, etc.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Provided
Type: Engine Bearing
Material: Chrome Steel
Tolerance: P0
Clearance: C2
ABS: Without ABS
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ball bearing

What are the Challenges Associated with Noise Reduction in Ball Bearings?

Noise reduction in ball bearings is a crucial consideration, especially in applications where noise levels must be minimized for operational efficiency and user comfort. While ball bearings are designed to operate smoothly, there are several challenges associated with reducing noise in their operation:

  • Vibration:

Vibration generated by the movement of rolling elements and raceways can lead to noise. Even minor irregularities in bearing components or the mounting system can cause vibration that translates into audible noise.

  • Bearing Type and Design:

The type and design of the ball bearing can impact noise generation. For example, deep groove ball bearings are known for their quiet operation, while angular contact bearings can generate more noise due to their higher contact angles.

  • Lubrication:

Improper or inadequate lubrication can result in increased friction and wear, leading to noise. Choosing the right lubricant and maintaining proper lubrication levels are essential for reducing noise in ball bearings.

  • Bearing Clearance and Preload:

Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.

  • Material and Manufacturing Quality:

The quality of materials and manufacturing processes can affect noise levels. Inconsistent or low-quality materials, improper heat treatment, or manufacturing defects can lead to noise generation during operation.

  • Surface Finish:

The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.

  • Sealing and Shielding:

Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.

  • Operating Conditions:

External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.

  • Wear and Deterioration:

As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.

To address these challenges and reduce noise in ball bearings, manufacturers and engineers employ various techniques, such as optimizing design, selecting suitable bearing types, using proper lubrication, maintaining accurate preload settings, and ensuring high-quality materials and manufacturing processes. Noise reduction efforts are essential to improve overall product quality, meet noise regulations, and enhance user experience in various applications.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

What are the Different Components that Make up a Typical Ball Bearing?

A typical ball bearing consists of several essential components that work together to reduce friction and support loads. Here are the main components that make up a ball bearing:

  • Outer Ring:

The outer ring is the stationary part of the bearing that provides support and houses the other components. It contains raceways (grooves) that guide the balls’ movement.

  • Inner Ring:

The inner ring is the rotating part of the bearing that attaches to the shaft. It also contains raceways that correspond to those on the outer ring, allowing the balls to roll smoothly.

  • Balls:

The spherical balls are the rolling elements that reduce friction between the inner and outer rings. Their smooth rolling motion enables efficient movement and load distribution.

  • Cage or Retainer:

The cage, also known as the retainer, maintains a consistent spacing between the balls. It prevents the balls from touching each other, reducing friction and preventing jamming.

  • Seals and Shields:

Many ball bearings include seals or shields to protect the internal components from contaminants and retain lubrication. Seals provide better protection against contaminants, while shields offer less resistance to rotation.

  • Lubricant:

Lubrication is essential to reduce friction, wear, and heat generation. Bearings are typically filled with lubricants that ensure smooth movement between the balls and raceways.

  • Flanges and Snap Rings:

In some designs, flanges or snap rings are added to help position and secure the bearing in its housing or on the shaft. Flanges prevent axial movement, while snap rings secure the bearing radially.

  • Raceways:

Raceways are the grooved tracks on the inner and outer rings where the balls roll. The shape and design of the raceways influence the bearing’s load-carrying capacity and performance.

  • Anti-Friction Shield:

In certain high-speed applications, a thin anti-friction shield can be placed between the inner and outer rings to minimize friction and heat generation.

These components work together to enable the smooth rolling motion, load support, and reduced friction that characterize ball bearings. The proper design and assembly of these components ensure the bearing’s optimal performance and longevity in various applications.

China high quality Hot Sale Wheel Bearing 6002 2RS Deep Groove Ball Bearing bearing and raceChina high quality Hot Sale Wheel Bearing 6002 2RS Deep Groove Ball Bearing bearing and race
editor by CX 2024-04-16

China Custom CZPT Radial Deep Groove Ball Bearings for Electric Machinery Industry 6904 Series bearing driver

Product Description

KGG:Precision Deep Groove Ball Bearing

Advantages and features of CZPT bearings

∞ CZPT Ball Bearings consist of an outer ring, an inner ring, and a plurality of rollers and spacers. The bearing with high rotation accuracy capable of bearing loads in every direction. Because it has orthogonally arranged cylindrical rollers, it can bear loads in every direction. CZPT provides 2 kinds of bearings: Deep Groove Ball Bearing and Angular Contact Ball Bearings.   

∞ ACBB, which is the abbreviation of angular contact ball bearings. With different contact angles, the higher axial load can be well taken care now. CZPT standard ball bearings are the perfect solution for high runout accuracy applications such as machine tool main spindles.

∞ Deep groove ball bearings are widely used in many industries for decades. A deep groove is formed on each inner and outer ring of the bearings enabling them to sustain radial and axial loads or even combinations of both. As the leading deep groove ball bearing factory, CZPT Bearings owns abundant experience in designing and producing this type of bearing.                           

Application:

1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc

Specification List
 

Boundary Dimensions (mm) Basic Load Ratings(N) Limiting Speeds (rpm) Bearing Numbers Type Snap ring groove dimensions Snap ring
dimensions
d D B r dynamic
Cr		 static Cor Grease Oil Open
type		 Shield
ZZ		 Seal
non-contact
LLB		 Low
torque
type
LLH		 Seal
contact
LLU		 Snap ring
groove		 Snap
ring		 D1 a b ro D2 f
min Open Z,ZZ
LB,LLB		 LLH LU LLU Open Z LB max max min max max max
10 19 5 0.3 1830 925 32000 – 24000 38000 6800 ZZ LLB – LLU – – – – – – – –
22 6 0.3 2700 1270 30000 – 21000 36000 6900 ZZ LLB – LLU N NR 20.8 1.05 0.8 0.2 24.8 0.7
26 8 0.3 4550 1960 29000 25000 21000 34000 6000 ZZ LLB LLH LLU N NR – – – – – –
30 9 0.6 5100 2390 25000 21000 18000 30000 6200 ZZ LLB LLH LLU N NR 28.17 2.06 1.35 0.4 34.7 1.12
35 11 0.6 8200 3500 23000 20000 16000 27000 6300 ZZ LLB LLH LLU N NR 33.17 2.06 1.35 0.4 39.7 1.12
12 21 5 0.3 1920 1040 29000 – 20000 35000 6801 ZZ LLB – LLU – – – – – – – –
24 6 0.3 2890 1460 27000 – 19000 32000 6901 ZZ LLB – LLU N NR 22.8 1.05 0.8 0.2 26.8 0.7
28 7 0.3 5100 2390 26000 – – 30000 16001 – – – – – – – – – – – –
28 8 0.3 5100 2390 26000 21000 18000 30000 6001 ZZ LLB LLH LLU N NR – – – – – –
32 10 0.6 6100 2750 22000 20000 16000 26000 6201 ZZ LLB LLH LLU N NR 30.5 2.06 1.35 0.4 36.7 1.12
37 12 1 9700 4200 20000 19000 15000 24000 6301 ZZ LLB LLH LLU N NR 34.77 2.06 1.35 0.4 41.3 1.12
15 24 5 0.3 2080 1260 26000 – 17000 31000 6802 ZZ LLB – LLU – – – – – – – –
28 7 0.3 3650 2000 24000 – 16000 28000 6902 ZZ LLB – LLU N NR 26.7 1.3 0.95 0.25 30.8 0.85
32 8 0.3 5600 2830 22000 – – 26000 16002 – – – – – – – – – – – –
32 9 0.3 5600 2830 22000 18000 15000 26000 6002 ZZ LLB LLH LLU N NR 30.15 2.06 1.35 0.4 36.7 1.12
35 11 0.6 7750 3600 19000 18000 15000 23000 6202 ZZ LLB LLH LLU N NR 33.17 2.06 1.35 0.4 39.7 1.12
42 13 1 11400 5450 17000 15000 12000 21000 6302 ZZ LLB LLH LLU N NR 39.75 2.06 1.35 0.4 46.3 1.12
17 24 5 0.3 2080 1260 26000 – 17000 31000 6802 ZZ LLB – LLU – – – – – – – –
28 7 0.3 3650 2000 24000 – 16000 28000 6902 ZZ LLB – LLU N NR 28.7 1.3 0.95 0.25 32.8 0.85
32 8 0.3 5600 2830 22000 – – 26000 16002 – – – – – – – – – – – –
32 9 0.3 5600 2830 22000 18000 15000 26000 6002 ZZ LLB LLH LLU N NR 33.17 2.06 1.35 0.4 39.7 1.12
35 11 0.6 7750 3600 19000 18000 15000 23000 6202 ZZ LLB LLH LLU N NR 38.1 2.06 1.35 0.4 44.6 1.12
42 13 1 11400 5450 17000 15000 12000 21000 6302 ZZ LLB LLH LLU N NR 44.6 2.46 1.35 0.4 52.7 1.12
20 32 7 0.3 4000 2470 21000 – 13000 25000 6804 ZZ LLB – LLU N NR 30.7 1.3 0.95 0.25 34.8 0.85
37 9 0.3 6400 3700 19000 – 12000 23000 6904 ZZ LLB – LLU N NR 35.7 1.7 0.95 0.25 39.8 0.85
42 8 0.3 7900 4500 18000 – – 21000 16004 – – – – – – – – – – – –
42 12 0.6 9400 5050 18000 13000 11000 21000 6004 ZZ LLB LLH LLU N NR 39.75 2.06 1.35 0.4 46.3 1.12
47 14 1 12800 6650 16000 12000 10000 18000 6204 ZZ LLB LLH LLU N NR 44.6 2.46 1.35 0.4 52.7 1.12
52 15 1.1 15900 7900 14000 12000 10000 17000 6304 ZZ LLB LLH LLU N NR 49.73 2.46 1.35 0.4 57.9 1.12
22 44 12 0.6 9400 5050 17000 13000 10000 20000 60/22 ZZ LLB LLH LLU N NR 41.75 2.06 1.35 0.4 48.3 1.12
50 14 1 12900 6800 14000 12000 9700 17000 62/22 ZZ LLB LLH LLU N NR 47.6 2.46 1.35 0.4 55.7 1.12
56 16 1.1 18400 9250 13000 11000 9200 15000 63/22 ZZ LLB LLH LLU N NR 53.6 2.46 1.35 0.4 61.7 1.12
25 37 7 0.3 4300 2950 18000 – 10000 21000 6805 ZZ LLB – LLU N NR 35.7 1.3 0.95 0.25 39.8 0.85
42 9 0.3 7050 4550 16000 – 9800 19000 6905 ZZ LLB – LLU N NR 40.7 1.7 0.95 0.25 44.8 0.85
47 8 0.3 8350 5100 15000 – – 18000 16005 – – – – – – – – – – – –
47 12 0.6 15710 5850 15000 11000 9400 18000 6005 ZZ LLB LLH LLU N NR 44.6 2.06 1.35 0.4 52.7 1.12
52 15 1 14000 7850 13000 11000 8900 15000 6205 ZZ LLB LLH LLU N NR 49.73 2.46 1.35 0.4 57.9 1.12
62 17 1.1 21200 10900 12000 9700 8100 14000 6305 ZZ LLB LLH LLU N NR 59.61 3.28 1.9 0.6 67.7 1.7
80 21 1.5 34500 17500 10000 – – 12000 6405 – – – – – – – – – – – –
28 52 12 0.6 12500 7400 14000 10000 8400 16000 60/28 ZZ LLB LLH LLU N NR 49.7 2.06 1.35 0.4 57.9 1.12
58 16 1 17900 9750 12000 9700 8100 14000 62/28 ZZ LLB LLH LLU N NR 55.6 2.46 1.35 0.4 63.7 1.12
68 18 1.1 26700 14000 11000 8900 7400 13000 63/28 ZZ LLB LLH LLU N NR 64.82 3.28 1.9 0.6 74.6 1.7
30 42 7 0.3 4700 3650 15000 – 8800 18000 6806 ZZ LLB – LLU N NR 40.7 1.3 0.95 0.25 44.8 0.85
47 9 0.3 7250 5000 14000 – 8400 17000 6906 ZZ LLB – LLU N NR 45.7 1.7 0.95 0.25 49.8 0.85
55 9 0.3 11200 7350 13000 – – 15000 16006* – – – – – – – – – – – –
55 13 1 13200 8300 13000 9200 7700 15000 6006 ZZ LLB LLH LLU N NR 52.6 2.08 1.35 0.4 60.7 1.12
62 16 1 19500 11300 11000 8800 7300 13000 6206 ZZ LLB LLH LLU N NR 59.61 3.28 1.9 0.6 67.7 1.7
72 19 1.1 26700 15000 10000 7900 6600 12000 6306 ZZ LLB LLH LLU N NR 68.81 3.28 1.9 0.6 78.6 1.7
32 58 13 1 11800 8050 12000 8700 7200 15000 60/32 ZZ LLB LLH LLU N NR 55.6 2.08 1.35 0.4 63.7 1.12
65 17 1 20700 11600 11000 8400 7100 12000 62/32 ZZ LLB LLH LLU N NR 62.6 3.28 1.9 0.6 70.7 1.7
75 20 1.1 29800 16900 9500 7700 6500 11000 63/32* ZZ LLB LLH LLU N NR 71.83 3.28 1.9 0.6 81.6 1.7
35 47 7 0.3 4900 4050 13000 – – 16000 6807* ZZ LLB – LLU N NR 45.7 1.3 0.95 0.25 49.8 0.85
55 10 0.6 9550 6850 12000 – 7100 15000 6907 ZZ LLB – LLU N NR 53.7 1.7 0.95 0.25 57.8 0.85
62 9 0.3 11700 8200 12000 – – 14000 16007* – – – – – – – – – – – –
62 14 1 16000 10300 12000 8200 6800 14000 6007 ZZ LLB LLH LLU N NR 59.61 2.08 1.9 0.6 67.7 1.7
72 17 1.1 25700 15300 9800 7600 6300 11000 6207 ZZ LLB LLH LLU N NR 68.81 3.28 1.9 0.6 78.6 1.7
80 21 1.5 33500 19100 8800 7300 6000 10000 6307 ZZ LLB LLH LLU N NR 76.81 3.28 1.9 0.6 86.6 1.7
52 7 0.3 5100 4400 12000 – – 14000 6808 ZZ LLB – LLU N NR 50.7 1.3 0.95 0.25 54.8 0.85
40 62 12 0.6 12200 8900 11000 – 6300 13000 6908 ZZ LLB – LLU N NR 60.7 1.7 0.95 0.25 64.8 0.85
68 9 0.3 12600 9650 10000 – – 12000 16008* – – – – – – – – – – – –
68 15 1 16800 11500 10000 7300 6100 12000 6008 ZZ LLB LLH LLU N NR 64.82 2.49 1.9 0.6 74.6 1.7
80 18 1.1 29100 17800 8700 6700 5600 10000 6208 ZZ LLB LLH LLU N NR 76.81 3.28 1.9 0.6 86.6 1.7
90 23 1.5 40500 24000 7800 6400 5300 9200 6308 ZZ LLB LLH LLU N NR 86.79 3.28 2.7 0.6 96.5 2.46
45 58 7 0.3 5350 4950 11000 – 5900 12000 6809* ZZ LLB – LLU N NR 56.7 1.3 0.95 0.25 60.8 0.85
68 12 0.6 13100 10400 9800 – 5600 12000 6909 ZZ LLB – LLU N NR 66.7 1.7 0.95 0.25 70.8 0.85
75 10 0.6 12900 10500 9200 – – 11000 16009* – – – – – – – – – – – –
75 16 1 21000 15100 9200 6500 5400 11000 6009 ZZ LLB LLH LLU N NR 71.83 2.49 1.9 0.6 81.6 1.7
85 19 1.1 32500 20400 7800 6200 5200 9200 6209 ZZ LLB LLH LLU N NR 81.81 3.28 1.9 0.6 91.6 1.7
100 25 1.5 53000 32000 7000 5600 4700 8200 6309 ZZ LLB LLH LLU N NR 96.8 3.28 2.7 0.6 106.5 2.46
50 65 7 0.3 6600 6100 9600 – 5300 11000 6810 ZZ LLB – LLU N NR 63.7 1.3 0.95 0.25 67.8 0.85
72 12 0.6 13400 11200 8900 – 5100 11000 6910* ZZ LLB – LLU N NR 70.7 1.7 0.95 0.25 74.8 0.85
80 10 0.6 13200 11300 8400 – – 9800 16571 – – – – – – – – – – – –
80 16 1 21800 16600 8400 6000 5000 9800 6571 ZZ LLB LLH LLU N NR 76.81 2.49 1.9 0.6 86.6 1.7
90 20 1.1 35000 23200 7100 5700 4700 8300 6210 ZZ LLB LLH LLU N NR 86.79 3.28 2.7 0.6 96.5 2.46
110 27 2 62000 38500 6400 5000 4200 7500 6310 ZZ LLB LLH LLU N NR 106.81 3.28 2.7 0.6 116.6 2.46
55 72 9 0.3 8800 8100 8700 – 4800 10000 6811* ZZ LLB – LLU N NR 70.7 1.7 0.95 0.25 74.8 0.85
80 13 1 16000 13300 8200 – 4600 9600 6911* ZZ LLB – LLU N NR 77.9 2.1 1.3 0.4 84.4 1.12
90 11 0.6 18600 15300 7700 – – 9000 16011* – – – – – – – – – – – –
90 18 1.1 28300 21200 7700 – 4500 9000 6011 ZZ LLB – LLU N NR 86.79 2.87 2.7 0.6 96.5 2.46
100 21 1.5 43500 29200 6400 – 4300 7600 6211* ZZ LLB – LLU N NR 96.8 3.28 2.7 0.6 106.5 2.46
120 29 2 71500 45000 5800 – 3900 6800 6311 ZZ LLB – LLU N NR 115.21 4.06 3.1 0.6 129.7 2.82
60 78 10 0.3 11500 10600 8000 – 4400 9400 6812* ZZ LLB – LLU N NR 76.2 1.7 1.3 0.4 82.7 1.12
85 13 1 16400 14300 7600 – 4300 8900 6912* ZZ LLB – LLU N NR 82.9 2.1 1.3 0.4 89.4 1.12
95 11 0.6 20000 17500 7000 – – 8300 16012* – – – – – – – – – – – –
95 18 1.1 29500 23200 7000 – 4100 8300 6012* ZZ LLB – LLU N NR 91.82 2.87 2.7 0.6 101.6 2.46
110 22 1.5 52500 36000 6000 – 3800 7000 6212 ZZ LLB – LLU N NR 106.81 3.28 2.7 0.6 116.6 2.46
130 31 2.1 82000 52000 5400 – 3600 6300 6312 ZZ LLB – LLU N NR 125.22 4.06 3.1 0.6 139.7 2.82
65 140 33 2.1 92500 60000 4900 – – 5800 6313 – – – – – – – – – – – –
70 150 35 3 104000 68000 4100 – – 4800 6314* – – – – – – – – – – – –

Abutment and fillet dimensions (mm) Weight (kg)
da Da ra Dx CY CZ rNa Open (Approx)
min max max max (Approx.) max max max
12 12.5 17 0.3 – – – – 0.005
12 13 20 0.3 25.5 1.5 0.7 0.3 0.009
12 13.5 24 0.3 – – – – 0.019
14 16 26 0.6 35.5 2.9 1.2 0.5 0.032
14 17 31 0.6 40.5 2.9 1.2 0.5 0.053
14 14.5 19 0.3 – – – – 0.006
14 15 22 0.3 27.5 1.5 0.7 0.3 0.011
14 – 26 0.3 – – – – 0.019
14 16 26 0.3 – – – – 0.571
16 17 28 0.6 37.5 2.9 1.2 0.5 0.037
17 18.5 32 1 42 2.9 1.2 0.5 0.06
17 17.5 22 0.3 – – – – 0.007
17 17.5 26 0.3 31.5 1.9 0.9 0.3 0.016
17 – 30 0.3 – – – – 0.571
17 19 30 0.3 37.5 2.9 1.2 0.3 0.03
19 20 31 0.6 40.5 2.9 1.2 0.5 0.045
20 23 37 1 47 2.9 1.2 0.5 0.082
19 19.5 24 0.3 – – – – 0.008
19 20 28 0.3 33.5 1.9 0.9 0.3 0.018
19 – 33 0.3 – – – – 0.032
19 21 33 0.3 40.5 2.9 1.2 0.3 0.039
21 23 36 0.6 45.5 2.9 1.2 0.5 0.066
22 25 42 1 53.5 3.3 1.2 0.5 0.115
22 22.5 30 0.3 35.5 1.9 0.9 0.3 0.019
22 24 35 0.3 40.5 2.3 0.9 0.3 0.036
22 – 40 0.3 – – – – 0.051
24 26 38 0.6 47 2.9 1.2 0.5 0.069
25 28 42 1 53.5 3.3 1.2 0.5 0.106
26.5 28.5 45.5 1 58.5 3.3 1.2 0.5 0.144
26 26.5 40 0.6 49 2.9 1.2 0.5 0.074
27 29.5 45 1 56.5 3.3 1.2 0.5 0.117
28.5 31 49.5 1 62.5 3.3 1.2 0.5 0.176
27 28 35 0.3 40.5 1.9 0.9 0.3 0.571
27 29 40 0.3 45.5 2.3 0.9 0.3 0.042
27 – 45 0.3 – – – – 0.06
29 30.5 43 0.6 53.5 2.9 1.2 0.5 0.08
30 32 47 1 58.5 3.3 1.2 0.5 0.128
31.5 35 55.5 1 68.5 4.6 1.7 0.5 0.232
33 – 72 1.5 – – – – 0.53
32 34 48 0.6 58.5 2.9 1.2 0.5 0.098
33 35.5 53 1 64.5 3.3 1.2 0.5 0.171
34.5 38.5 61.5 1 76 4.6 1.7 0.5 0.284
32 33 40 0.3 45.5 1.9 0.9 0.3 0.026
32 34 45 0.3 50.5 2.3 0.9 0.3 0.048
32 – 53 0.3 – – – – 0.091
35 37 50 1 61.5 2.9 1.2 0.5 0.116
35 39 57 1 68.5 4.6 1.7 0.5 0.199
36.5 43 65.5 1 80 4.6 1.7 0.5 0.36
37 39 53 1 64.5 2.9 1.2 0.5 0.129
37 40 60 1 71.5 4.6 1.7 0.5 0.226
38.5 43.5 68.5 1 83 4.6 1.7 0.5 0.382
37 38 45 0.3 50.5 1.9 0.9 0.3 0.571
39 40 51 0.6 58.8 2.3 0.9 0.5 0.074
37 – 60 0.3 – – – – 0.11
40 42 57 1 68.5 3.4 1.7 0.5 0.155
41.5 45 65.5 1 80 4.6 1.7 0.5 0.288
43 47 72 1.5 88 4.6 1.7 0.5 0.457
42 43 50 0.3 55.5 1.9 0.9 0.3 0.033
44 45 58 0.6 65.5 2.3 0.9 0.5 0.11
42 – 66 0.3 – – – – 0.125
45 47 63 1 76 3.8 1.7 0.5 0.19
46.5 51 73.5 1 88 4.6 1.7 0.5 0.366
48 54 82 1.5 98 5.4 2.5 0.5 0.63
47 48 56 0.3 61.5 1.9 0.9 0.3 0.04
49 51 64 0.6 72 2.3 0.9 0.5 0.128
49 – 71 0.6 – – – – 0.171
50 52.5 70 1 83 3.8 1.7 0.5 0.237
51.5 55.5 78.5 1 93 4.6 1.7 0.5 0.398
53 61.5 92 1.5 108 5.4 2.5 0.5 0.814
52 54 63 0.3 68.5 1.9 0.9 0.3 0.052
54 55.5 68 0.6 76 2.3 0.9 0.5 0.132
54 – 76 0.6 – – – – 0.18
55 57.5 75 1 88 3.8 1.7 0.5 0.261
56.5 60 83.5 1 98 5.4 2.5 0.5 0.454
59 68.5 101 2 118 5.4 2.5 0.5 1.07
57 59 70 0.3 76 2.3 0.9 0.3 0.083
60 61.5 75 1 86 2.9 1.2 0.5 0.18
59 – 86 0.6 – – – – 0.258
61.5 64 83.5 1 98 5 2.5 0.5 0.388
63 67 92 1.5 108 5.4 2.5 0.5 0.601
64 74 111 2 131.5 6.5 2.9 0.5 1.37
62 64.5 76 0.3 87 2.5 1.2 0.3 0.106
65 66.5 80 1 91 2.9 1.2 0.5 0.193
64 – 91 0.6 – – – – 0.283
66.5 69 88.5 1 103 5 2.5 0.5 0.414
68 75 102 1.5 118 5.4 2.5 0.5 0.783
71 80.5 119 2 141.5 6.5 2.9 0.5 1.73
76 – 129 2 – – – – 2.08
81 – 139 2 – – – – 2.52

 FACTORY DETAILED PROCESSING PHOTOS

HIGH QUALITY CONTROL SYSTEM


FAQ

1. Why choose CZPT China?

Over the past 17 years, CZPT has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.

2. What is your main products ?

We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.

3. How to Custom-made (OEM/ODM)?

If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

4. When can I get the quotation?

We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.

5. How can I get a sample to check the quality?

After confirmation of our quoted price, you can place the sample order. The sample will be started after you sign back our detailed technical file.

6. What’s your payment terms?

Our payment terms is 30% deposit,balance 70% before shipment. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Inner Diameter: 20mm
Outer Diameter: 37mm
Width: 9mm
Weight: 0.036kg
Aligning: Aligning Bearing
Separated: Unseparated
Customization:
Available

|

Customized Request

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:

  • Regular Lubrication:

Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.

  • Clean Environment:

Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.

  • Proper Installation:

Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.

  • Regular Inspections:

Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.

  • Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

  • Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

  • Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

  • Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

  • Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

  • Documented Records:

Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.

By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:

  • Design and Geometry:

Deep Groove Ball Bearings:

Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.

Angular Contact Ball Bearings:

Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.

  • Load Carrying Capacity:

Deep Groove Ball Bearings:

Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.

Angular Contact Ball Bearings:

Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.

  • Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.

  • Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.

  • Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

ball bearing

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?

Lubrication plays a critical role in the performance and lifespan of ball bearings. Proper lubrication ensures smooth operation, reduces friction, minimizes wear, and prevents premature failure. Here’s how lubrication impacts ball bearings:

  • Friction Reduction:

Lubrication creates a thin film between the rolling elements (balls) and the raceways of the bearing. This film reduces friction by separating the surfaces and preventing direct metal-to-metal contact. Reduced friction results in lower energy consumption, heat generation, and wear.

  • Wear Prevention:

Lubricants create a protective barrier that prevents wear and damage to the bearing’s components. Without proper lubrication, the repeated rolling and sliding of the balls against the raceways would lead to accelerated wear, surface pitting, and eventual failure.

  • Heat Dissipation:

Lubricants help dissipate heat generated during operation. The rolling elements and raceways can generate heat due to friction. Adequate lubrication carries away this heat, preventing overheating and maintaining stable operating temperatures.

  • Corrosion Resistance:

Lubrication prevents moisture and contaminants from coming into direct contact with the bearing’s surfaces. This helps protect the bearing against corrosion, rust, and the formation of debris that can compromise its performance and longevity.

  • Noise Reduction:

Lubricated ball bearings operate quietly because the lubricant cushions and dampens vibrations caused by the rolling motion. This noise reduction is crucial in applications where noise levels need to be minimized.

  • Seal Protection:

Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.

  • Improved Efficiency:

Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.

  • Lifespan Extension:

Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.

  • Selection of Lubricant:

Choosing the right lubricant is essential. Factors such as speed, temperature, load, and environmental conditions influence the choice of lubricant type and viscosity. Some common lubricant options include grease and oil-based lubricants.

  • Regular Maintenance:

Regular lubrication maintenance is crucial to ensure optimal bearing performance. Bearings should be inspected and relubricated according to manufacturer recommendations and based on the application’s operating conditions.

In summary, proper lubrication is essential for the optimal performance, longevity, and reliability of ball bearings. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and contributes to smooth and efficient operation in various industrial and mechanical applications.

China Custom CZPT Radial Deep Groove Ball Bearings for Electric Machinery Industry 6904 Series bearing driverChina Custom CZPT Radial Deep Groove Ball Bearings for Electric Machinery Industry 6904 Series bearing driver
editor by CX 2024-04-16

China high quality CZPT Ball Bearing 21b0001 for Wheel Loader Clg835h bearing and race

Product Description

Product Specification: 
 

Title LiuGong ball bearing 21B0001 for wheel loader CLG835H
Part Name Ball bearing
Part No. 21B0001
Brand LiuGong
Condition Original/genuine parts
Net Weight 0.5 KG
Packaging Safety carton or wooden box
Delivery time 2-5 working days

Company Profile: 

ZheJiang CZPT Machinery Equipment Co., Ltd  is  1 of the wholesaler,  which specializes in providing LiuGong spare parts in China.
Our product range as following.
 

  • Parts for LiuGong wheel loader CLG835, ZL 30E, CLG842, ZL40B, ZL50C, ZL50CN, CLG856, CLG855, CLG862, CLG877 etc..

  • Parts for LiuGong excavator CLG205C, CLG915C, CLG916D, CLG920D/922D/923D/925D, CLG926LC etc..

  • Parts for LiuGong motor grader CLG414, CLG416, CLG418, CLG420.

  • Parts for LiuGong roller CLG612H, CLG614H, CLG618H, CLG614, CLG620 etc..

  • Parts for LiuGong compact wheel loader CLG816/816G, CLG820C, CLG836 etc..

  • Parts for LiuGong skid steer loader CLG365A, CLG375A

  • Parts for LiuGong backhoe loader CLG766, CLG777

  • Parts for LiuGong forklift CPC30, CPC35, CPCD30, CPCD 35 etc..

  • ZF transmission 4WG-200, 6WG-200, 4WG-180, 6WG-180.

  • PERMCO hydraulic pumps 
     

We also have engine parts available for LiuGong machines. If you have any interest or enquiry of LiuGong parts, welcome to contact us.

Know more information, please visit to : http://liugongparts

Warehouse & spare parts pictures :

Packaging pictures

Our advantages & Services

1. Our company in the city where is liuGong factory/headquarter located, spare parts are taken from LiuGong warehouse directly.

2. Our company sell LiuGong genuine spare parts, complying with highest LiuGong performance standards.

3. Our company have own warehouse, which will guarantee you the high availability and short lead time (normal order 1-5 working days ).

4. Our team has rich experience in LiuGong spare parts.

5. Provide flexible pricing, offer discount and deferred payment for the wholesale buyers.

6. Accept payment by T/T and western union.

7. Accept terms of FOB, CIF, CPT ……etc.

If you want to know more infomation, please feel free to call or email us.

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Yes
Warranty: Yes
Type: Ball Bearing
Application: Liugong Wheel Loader
Condition: New
Original: Yes

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China high quality CZPT Ball Bearing 21b0001 for Wheel Loader Clg835h bearing and raceChina high quality CZPT Ball Bearing 21b0001 for Wheel Loader Clg835h bearing and race
editor by CX 2024-04-16

China Best Sales China Slewing Ring Bearing 062.25.1455.500.11.1503 with Internal Gear Ball Bearing for Forest machinery bearing assembly

Product Description

China Slewing Ring Bearing 062.25.1455.500.11.1503 With Internal Gear Ball Bearing For Forest Machiney 

Four-point contact ball slewing turntable bearings
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.

Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.

Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.

Three row roller slewing bearing
Three row roller bearing CZPT to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.

 

Type • Single row 4 point contact ball slewing bearing 
• Single row crossed cylindrical roller slewing bearings
• Double row ball slewing bearings
•Double row Roller/ball combination slewing bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Customized
Cage Material Nylon/ steel /copper
Structure taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through hole/Tapped hole
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness		 229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name LYMC
Place of Origin HangZhou ZheJiang
Warranty 12 months
Payment term T/T is our first choice

Packing details

 1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

 


Product Process
Application:

 

– Excavators – Drilling rigs – Mining Equipments – Cranes   -Offshore Equipments  – Vehicles  – Machine Tools  – Wind Turbines

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: 50mn/42CrMo
Customization:
Available

|

Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China Best Sales China Slewing Ring Bearing 062.25.1455.500.11.1503 with Internal Gear Ball Bearing for Forest machinery bearing assemblyChina Best Sales China Slewing Ring Bearing 062.25.1455.500.11.1503 with Internal Gear Ball Bearing for Forest machinery bearing assembly
editor by CX 2024-04-16

China OEM Gcr15 Ceiling Fan Ball Bearing 6203 for Auto Parts bearing driver kit

Product Description

Product Description

BEARING INNER RING
A steel ball with a common steel ball or roller rolling on the outer surface of the inner ring.
RUBBER SEALAFTER CODE: RS 2RS Z ZZ
The sealing material is made of skeleton rubber and has good dust-proof effect, which can prevent any foreign matter from invading and dust and water in a harsh environment. 

Main Features1.Bearing moves very Fast & Quiet, with very smooth hand feeling
2.High precision, long life, low noise
3.High-end technology
4.Good after-sales service

Company Profile

HangZhou CZPT Machinery Technology Co., Ltd is industry and trade company which modern enterprise integrating scientific research, development, manufacture and trading. Based on integrity, responsibility and cooperation, our company have professional R&D and sales team, providing one-stop service for customers. Our company mainly products is Bearing, Jack Hammer,  Screw Air Compressor,  Piston Air Compressor and Other Machinery Hardware Product etc.

After many years of production and research and development, we have obtained more than 20 national patents. The products are sold at home and abroad and are well received by customers. Our products sold at home and abroad, after get the self-managemert import and export rights, our products are exported to Vietnam, Indonesia, Philippines, Cambodia, Pakistan, Afghanistan and other countries and regions.

 

Application

 Electric motors and generators
 Agriculture
 Material handling
Industrial transmissions
Food and beverage
Industrial pumps
Industrial fans
Two and 3 wheelers
Cars and light trucks 

Packaging & Shipping

 

Customer feedback

FAQ

Q1: Are you factory or trade company?
A1: We are factory. And we have our own trading company.

Q2: What the exactly address of your factory?
A2: Our company is located in Xihu (West Lake) Dis. East Road, Xihu (West Lake) Dis. District, HangZhou, ZHangZhoug, China.

Q3: Will you provide some free samples? 
A3: Yes, sure, but the freight need to be paid by you. 

Q4: Which payment term can you accept?
A4: 30% T/T in advance, 70% T/T against the B/L copy.

Q5: Can you accept OEM orders?
A5: Yes, with professional design team, OEM orders are highly welcome.

Q6: Which trade term can you accept?
A6: Available trade terms: FOB, CIF, CFR, EXW, CPT, etc.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Provided
Type: Engine Bearing
Material: Chrome Steel
Tolerance: P0
Clearance: C2
ABS: Without ABS
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

How do Temperature and Environmental Conditions Affect the Performance of Ball Bearings?

Temperature and environmental conditions have a significant impact on the performance and longevity of ball bearings. The operating environment can influence factors such as lubrication effectiveness, material properties, and overall bearing behavior. Here’s how temperature and environmental conditions affect ball bearing performance:

  • Lubrication:

Temperature variations can affect the viscosity and flow characteristics of lubricants. Extreme temperatures can cause lubricants to become too thin or too thick, leading to inadequate lubrication and increased friction. In high-temperature environments, lubricants can degrade, reducing their effectiveness.

  • Material Properties:

Temperature changes can alter the material properties of the bearing components. High temperatures can lead to thermal expansion, affecting bearing clearances and potentially causing interference between components. Extreme cold temperatures can make materials more brittle and prone to fracture.

  • Clearance Changes:

Temperature fluctuations can cause changes in the internal clearance of ball bearings. For instance, at high temperatures, materials expand, leading to increased clearance. This can affect bearing performance, load distribution, and overall stability.

  • Corrosion and Contamination:

Harsh environmental conditions, such as exposure to moisture, chemicals, or abrasive particles, can lead to corrosion and contamination of bearing components. Corrosion weakens the material, while contamination accelerates wear and reduces bearing life.

  • Thermal Stress:

Rapid temperature changes can result in thermal stress within the bearing components. Differential expansion and contraction between the inner and outer rings can lead to stress and distortion, affecting precision and bearing integrity.

  • Noise and Vibration:

Temperature-related changes in material properties and internal clearances can influence noise and vibration levels. Extreme temperatures can lead to increased noise generation and vibration, affecting the overall operation of machinery.

  • Lubricant Degradation:

Environmental factors like humidity, dust, and contaminants can lead to premature lubricant degradation. Oxidation, moisture absorption, and the presence of foreign particles can compromise the lubricant’s performance and contribute to increased friction and wear.

  • Seal Effectiveness:

Seals and shields that protect bearings from contaminants can be affected by temperature fluctuations. Extreme temperatures can lead to seal hardening, cracking, or deformation, compromising their effectiveness in preventing contamination.

  • Choosing Appropriate Bearings:

When selecting ball bearings for specific applications, engineers must consider the expected temperature and environmental conditions. High-temperature bearings, bearings with specialized coatings, and those with enhanced sealing mechanisms may be necessary to ensure reliable performance.

Overall, understanding the impact of temperature and environmental conditions on ball bearing performance is crucial for proper bearing selection, maintenance, and ensuring optimal operation in diverse industries and applications.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China OEM Gcr15 Ceiling Fan Ball Bearing 6203 for Auto Parts bearing driver kitChina OEM Gcr15 Ceiling Fan Ball Bearing 6203 for Auto Parts bearing driver kit
editor by CX 2024-04-16

China best Metal Guard Effective Air Flow Axial Fan Ball Bearing with UL, CE with high quality

Product Description

Model F2E-220B-230 F2E-220B-115
Bearing ball ball
Voltage V 220/230 110/115
Frequency HZ 50/60 50/60
Current(A)) 0.38/0.36 0.90 
Power(W) 58/60 65
Speed(r/min) 2480/2580 2600
Air flow(m³/min) 580 580
Noise(dB) 64/66 65

Why should we choose Leipole products?

A: LEIPOLE is a leading manufacture produce terminal blocks, fan filters, thermostats, heaters, and transformer. It also provides other panel accessories such as cabinet lighting, bus bar system, distribution boxes and cable glands to meet various customers from different industry fields.
 

How can we ensure product quality from Leipole?

A: LEIPOLE believes QUALITY is critical. We committed ISO9001 from paper to real work in each position in the company. From supplier audits and incoming material inspection to quality control and final packing, we take each step very carefully to assure our product quality. We also provide 12 months warranty into operation.

 

Where can we buy Leipole products?

A: LEIPOLE has been building its sales network throughout the world. You can buy from your local distributors from our 11 partners in different countries and regions. For those clients who are unable to buy in their local, we can provide direct sales from our office in China or nearest distributor.
 

I am interested in becoming a distributor of Leipole Electric, how can I apply?

A: LEIPOLE welcomes every potential customers to work together in the future, please apply for the distributor by sending email to us.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Material: Aluminum Fan
Blade Material: Plastic
Type: Axial Fan
Electric Current Type: AC
Mounting: Free Standing
Certification: RoHS, ISO, CE, CCC
Customization:
Available

|

Customized Request

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

What Role do Seals and Shields Play in Protecting Ball Bearings from Dirt and Debris?

Seals and shields are critical components of ball bearings that play a crucial role in protecting them from dirt, debris, moisture, and contaminants in various applications. These protective features help maintain the integrity of the bearing’s internal components and ensure reliable operation. Here’s how seals and shields contribute to bearing protection:

  • Contaminant Exclusion:

Seals and shields create a physical barrier between the external environment and the bearing’s interior. They prevent dust, dirt, water, and other contaminants from entering the bearing and coming into contact with the rolling elements and raceways.

  • Lubrication Retention:

Seals and shields help retain lubrication within the bearing. They prevent the lubricant from escaping and contaminants from entering, ensuring that the bearing remains properly lubricated for smooth operation and reduced friction.

  • Corrosion Prevention:

Seals and shields protect bearing components from exposure to moisture and corrosive substances. By preventing moisture ingress, they help extend the bearing’s lifespan by minimizing the risk of corrosion-related damage.

  • Extended Bearing Life:

Seals and shields contribute to the overall longevity of the bearing by reducing wear and damage caused by contaminants. They help maintain a clean internal environment, which promotes proper rolling contact and minimizes the risk of premature failure.

  • Enhanced Performance in Harsh Environments:

In applications exposed to harsh conditions, such as outdoor machinery or industrial settings, seals and shields are vital. They protect bearings from abrasive particles, chemicals, and extreme temperatures, ensuring reliable performance despite challenging conditions.

  • Noise and Vibration Reduction:

Seals and shields can help reduce noise and vibration generated by the bearing. They provide additional damping and stability, contributing to smoother operation and enhanced user comfort in noise-sensitive applications.

  • Customized Protection:

Manufacturers offer a variety of seal and shield designs to suit different application requirements. Some seals provide higher levels of protection against contamination, while others are designed for high-speed or high-temperature environments.

  • Trade-Offs:

While seals and shields offer significant benefits, they can also introduce some friction due to contact with the bearing’s inner or outer ring. Engineers must balance the level of protection with the desired operating characteristics, considering factors like friction, speed, and environmental conditions.

Overall, seals and shields play a vital role in maintaining the integrity and performance of ball bearings. By effectively preventing contaminants from entering and preserving lubrication, they ensure the smooth and reliable operation of machinery and equipment in a wide range of applications.

ball bearing

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?

Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:

  • Deep Groove Ball Bearings:

Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.

  • Angular Contact Ball Bearings:

Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.

  • Self-Aligning Ball Bearings:

Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.

  • Thrust Ball Bearings:

Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.

  • Single-Row vs. Double-Row Bearings:

Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.

  • Miniature and Instrument Ball Bearings:

Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.

  • Max-Type and Conrad Bearings:

Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.

  • High-Precision Ball Bearings:

High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.

  • High-Speed Ball Bearings:

High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.

In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.

China best Metal Guard Effective Air Flow Axial Fan Ball Bearing with UL, CE with high qualityChina best Metal Guard Effective Air Flow Axial Fan Ball Bearing with UL, CE with high quality
editor by CX 2024-04-15

China high quality Lm8uu Lm10uu Lm12uu Linear Ball Bearings for 3D Printer bearing assembly

Product Description

SHAC linear bearing series:

LM…UU: 3-150MM,LME…UU: 4-80MM,LMF…UU:6-100MM,LMEF…UU:8-60MM,LMK…UU:6-100MM

LMEK…UU:8-60MM,LMH…UU:6-30MM,LM…LUU: 3-60MM,LME…LUU: 8-60MM,LMF…LUU:6-600MM

LMEF…LUU:8-60MM,LMK…LUU:6-60MM,LMEK…LUU:8-60MM,LMH…LUU:6-30MM

ST…UU:8-100UU

KH0824,KH1026,KH1228,KH1428,KH1630,KH2030,KH2540,KH3050,KH4060,KH5070

Our factory

We are ZheJiang technology joint venture factory in China, professional manufacturer linear CZPT and ball screw to global market with good quality and reasonable price. with ISO9001 & ISO14001 approved.
Mainly products SHAC brand linear CZPT is interworking with HIWIN linear guide,ball screw parameter same as TBI ballscrew. We already export our products to some market such as USA, Europe, East Korea,South America, North America,Southeast Asia,Indian,etc.


FAQ

Q1: Do you accept small order?

A: If your order bearings are our standard size, we accept even 1pcs.
Q2: Can I get free sample?
A: Yes. Limited,free sample available, freight cost must be paid by your side.
Q3: Are you factory or trade company?
A: We are manufacturer, ZheJiang technology team joint venture factory.
Q4: Can we mark our brand on your bearings and packing?
A: Yes, we support OEM your brand, the details let’s negotiation.
Q5: How long is the delivery?
A: Small orders usually takes 3-7 days,big order usually 20-35 days, depending on orders quantity and whether are standard size.
 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Feature: Running Smoothly
Function: Ordinary
Series: LM
Material: Bearing Steel
Type: Lm,Lmf ,Lmk,Lme
Brand: Shac
Customization:
Available

|

Customized Request

ball bearing

What are the Challenges Associated with Noise Reduction in Ball Bearings?

Noise reduction in ball bearings is a crucial consideration, especially in applications where noise levels must be minimized for operational efficiency and user comfort. While ball bearings are designed to operate smoothly, there are several challenges associated with reducing noise in their operation:

  • Vibration:

Vibration generated by the movement of rolling elements and raceways can lead to noise. Even minor irregularities in bearing components or the mounting system can cause vibration that translates into audible noise.

  • Bearing Type and Design:

The type and design of the ball bearing can impact noise generation. For example, deep groove ball bearings are known for their quiet operation, while angular contact bearings can generate more noise due to their higher contact angles.

  • Lubrication:

Improper or inadequate lubrication can result in increased friction and wear, leading to noise. Choosing the right lubricant and maintaining proper lubrication levels are essential for reducing noise in ball bearings.

  • Bearing Clearance and Preload:

Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.

  • Material and Manufacturing Quality:

The quality of materials and manufacturing processes can affect noise levels. Inconsistent or low-quality materials, improper heat treatment, or manufacturing defects can lead to noise generation during operation.

  • Surface Finish:

The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.

  • Sealing and Shielding:

Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.

  • Operating Conditions:

External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.

  • Wear and Deterioration:

As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.

To address these challenges and reduce noise in ball bearings, manufacturers and engineers employ various techniques, such as optimizing design, selecting suitable bearing types, using proper lubrication, maintaining accurate preload settings, and ensuring high-quality materials and manufacturing processes. Noise reduction efforts are essential to improve overall product quality, meet noise regulations, and enhance user experience in various applications.

ball bearing

How do Temperature and Environmental Conditions Affect the Performance of Ball Bearings?

Temperature and environmental conditions have a significant impact on the performance and longevity of ball bearings. The operating environment can influence factors such as lubrication effectiveness, material properties, and overall bearing behavior. Here’s how temperature and environmental conditions affect ball bearing performance:

  • Lubrication:

Temperature variations can affect the viscosity and flow characteristics of lubricants. Extreme temperatures can cause lubricants to become too thin or too thick, leading to inadequate lubrication and increased friction. In high-temperature environments, lubricants can degrade, reducing their effectiveness.

  • Material Properties:

Temperature changes can alter the material properties of the bearing components. High temperatures can lead to thermal expansion, affecting bearing clearances and potentially causing interference between components. Extreme cold temperatures can make materials more brittle and prone to fracture.

  • Clearance Changes:

Temperature fluctuations can cause changes in the internal clearance of ball bearings. For instance, at high temperatures, materials expand, leading to increased clearance. This can affect bearing performance, load distribution, and overall stability.

  • Corrosion and Contamination:

Harsh environmental conditions, such as exposure to moisture, chemicals, or abrasive particles, can lead to corrosion and contamination of bearing components. Corrosion weakens the material, while contamination accelerates wear and reduces bearing life.

  • Thermal Stress:

Rapid temperature changes can result in thermal stress within the bearing components. Differential expansion and contraction between the inner and outer rings can lead to stress and distortion, affecting precision and bearing integrity.

  • Noise and Vibration:

Temperature-related changes in material properties and internal clearances can influence noise and vibration levels. Extreme temperatures can lead to increased noise generation and vibration, affecting the overall operation of machinery.

  • Lubricant Degradation:

Environmental factors like humidity, dust, and contaminants can lead to premature lubricant degradation. Oxidation, moisture absorption, and the presence of foreign particles can compromise the lubricant’s performance and contribute to increased friction and wear.

  • Seal Effectiveness:

Seals and shields that protect bearings from contaminants can be affected by temperature fluctuations. Extreme temperatures can lead to seal hardening, cracking, or deformation, compromising their effectiveness in preventing contamination.

  • Choosing Appropriate Bearings:

When selecting ball bearings for specific applications, engineers must consider the expected temperature and environmental conditions. High-temperature bearings, bearings with specialized coatings, and those with enhanced sealing mechanisms may be necessary to ensure reliable performance.

Overall, understanding the impact of temperature and environmental conditions on ball bearing performance is crucial for proper bearing selection, maintenance, and ensuring optimal operation in diverse industries and applications.

ball bearing

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?

Lubrication plays a critical role in the performance and lifespan of ball bearings. Proper lubrication ensures smooth operation, reduces friction, minimizes wear, and prevents premature failure. Here’s how lubrication impacts ball bearings:

  • Friction Reduction:

Lubrication creates a thin film between the rolling elements (balls) and the raceways of the bearing. This film reduces friction by separating the surfaces and preventing direct metal-to-metal contact. Reduced friction results in lower energy consumption, heat generation, and wear.

  • Wear Prevention:

Lubricants create a protective barrier that prevents wear and damage to the bearing’s components. Without proper lubrication, the repeated rolling and sliding of the balls against the raceways would lead to accelerated wear, surface pitting, and eventual failure.

  • Heat Dissipation:

Lubricants help dissipate heat generated during operation. The rolling elements and raceways can generate heat due to friction. Adequate lubrication carries away this heat, preventing overheating and maintaining stable operating temperatures.

  • Corrosion Resistance:

Lubrication prevents moisture and contaminants from coming into direct contact with the bearing’s surfaces. This helps protect the bearing against corrosion, rust, and the formation of debris that can compromise its performance and longevity.

  • Noise Reduction:

Lubricated ball bearings operate quietly because the lubricant cushions and dampens vibrations caused by the rolling motion. This noise reduction is crucial in applications where noise levels need to be minimized.

  • Seal Protection:

Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.

  • Improved Efficiency:

Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.

  • Lifespan Extension:

Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.

  • Selection of Lubricant:

Choosing the right lubricant is essential. Factors such as speed, temperature, load, and environmental conditions influence the choice of lubricant type and viscosity. Some common lubricant options include grease and oil-based lubricants.

  • Regular Maintenance:

Regular lubrication maintenance is crucial to ensure optimal bearing performance. Bearings should be inspected and relubricated according to manufacturer recommendations and based on the application’s operating conditions.

In summary, proper lubrication is essential for the optimal performance, longevity, and reliability of ball bearings. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and contributes to smooth and efficient operation in various industrial and mechanical applications.

China high quality Lm8uu Lm10uu Lm12uu Linear Ball Bearings for 3D Printer bearing assemblyChina high quality Lm8uu Lm10uu Lm12uu Linear Ball Bearings for 3D Printer bearing assembly
editor by CX 2024-04-15

China Professional Auto Bearing,Wheel Bearing,Deep Groove Ball Bearing,N208,2208,Nu208,32208,Nj208,42208,NF208,12208,Ncl208,102208,Nup208,192208,Rn208,502208,Rnu208,292208, bearing engineering

Product Description

Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life. 

Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements. 

Features and benefits

  • High load carrying capacity
  • High stiffness
  • Accommodate axial displacement 
    Except for bearings with flanges on both the inner and outer rings.
  • Low friction
    The open flange design, 
  • Together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction and higher axial load carrying capability.
  • Long service life
    The logarithmic roller profile reduces edge stresses at the roller/raceway contact  and sensitivity to misalignment and shaft deflection.
  • Enhanced operational reliability
    The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
  • Separable and interchangeable
    The separable components of cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections.

Applications

Cylindrical roller bearings have characteristics that make them suitable for use in many types of industrial applications and essential for some. They can be used in both locating and non-locating bearing positions in bearing arrangements in for example:

  • Stationary gearboxes
  • Automotive gearboxes
  • Electric motors
  • Vibration motors
  • Wind turbines
  • Off-highway equipment
  • Pumps and compressors
  • Material handling equipment
  • Textile machinery
  • Rail vehicles
  • Rolling mills

 

Types NU, N, NNU, and NN are suitable as free-end bearings. 
Types NJ and NF can sustain limited axial loads in 1 direction.
Types NH and NUP can be used as fixed-end bearings.
NH-type cylindrical roller bearings consist of the NJ-type cylindrical roller bearings and HJ-type L-shaped thrust collars.
The inner ring loose rib of an NUP-type cylindrical roller bearing should be mounted so that the marked side is on the outside.
 

Parameters of Bearing
Model d D B Cr Cor Limiting Speed (r/min) Mass
(mm) (mm) (mm) (kN) (kN) Grease Oil (kg)
NU202 15 35 11 7.98 5.5 15000 19000 –
NU203 17 40 12 9.12 7 14000 18000 –
NU303 17 47 14 12.8 10.8 13000 17000 0.147
NU1004 20 42 12 10.5 9.2 13000 17000 0.09
NU204E 20 47 14 25.8 24 12000 16000 0.117
NU2204E 20 47 18 30.8 30 12000 16000 0.149
NU3O4E 20 52 15 29 25.5 11000 15000 0.155
NU2304E 20 52 21 39.2 37.5 10000 14000 0.216
NU1005 25 47 12 11 10.2 11000 15000 0.1
NU205E 25 52 15 27.5 26.8 11000 14000 0.14
NU2205E 25 52 18 32.8 33.8 11000 14000 0.168
NU305E 25 62 17 38.5 35.8 9000 12000 0.251
NU2305E 25 62 24 53.2 54.5 9000 12000 0.355
NU1006 30 55 13 13 12.8 9500 12000 0.12
NU206E 30 62 16 36 35.5 8500 11000 0.214
NU2206E 30 62 20 45.5 48 8500 11000 0.268
NU306E 30 72 19 49.2 48.2 8000 10000 0.377
NU2306E 30 72 27 70 75.5 8000 10000 0.538
NU406 30 90 23 57.2 53 7000 9000 0.73
NU1007 35 62 14 19.5 18.8 8500 11000 0.16
NU207E 35 72 17 46.5 48 7500 9500 0.311
NU2207E 35 72 23 57.5 63 7500 9500 0.414
NU307E 35 80 21 62 63.2 7000 9000 0.501
NU2307E 35 80 31 87.5 98.2 7000 9000 0.738
NU407 35 100 25 70.8 68.2 6000 7500 0.94
NU1008 40 68 15 21.2 22 7500 9500 0.22
NU208E 40 80 18 51.5 53 7000 9000 0.394
NU2208E 40 80 23 67.5 75.2 7000 9000 0.507
NU308E 40 90 23 76.8 77.8 6300 8000 0.68
NU2308E 40 90 33 105 118 6300 8000 0.974
NU408 40 110 27 90.5 89.8 5600 7000 1.25
NU1009 45 75 16 23.2 23.8 6500 8500 0.26
NU209E 45 85 19 58.5 63.8 6300 8000 0.45
NU2209E 45 85 23 71 82 6300 8000 0.55
NU309E 45 100 25 93 98 5600 7000 0.93
NU2309E 45 100 36 130 152 5600 7000 1.34
NU400 45 120 29 102 100 5000 6300 1.8
NU1571 50 80 16 25 27.5 6300 8000 –
NU210E 50 90 20 61.2 69.2 6000 7500 0.505
NU2210E 50 90 23 74.2 88.8 6000 7500 0.59
NU310E 50 110 27 105 112 5300 6700 1.2
NU2310E 50 110 40 155 185 5300 6700 1.79
NU410 50 130 31 120 120 4800 6000 2.3
NU1011 55 90 18 35.8 40 5600 7000 0.45
NU211E 55 100 21 80.2 95.5 5300 6700 0.68
NU2211E 55 100 25 94.8 118 5300 6700 0.81
NU311E 55 120 29 128 138 4800 6000 1.53
NU2311E 55 120 43 190 228 4800 6000 2.28
NU411 55 140 33 128 132 4300 5300 2.8
NU1012 60 95 18 38.5 45 5300 6700 0.48
NU212E 60 110 22 89.8 102 5000 6300 0.86
NU2212E 60 110 28 122 152 5000 6300 1.12
NU312E 60 130 31 142 155 4500 5600 1.87
NU2312E 60 130 46 212 260 4500 5600 2.81
NU412 60 150 35 155 162 4000 5000 3.4

SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1. MOQ: 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.

OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.

 

 

 

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Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small (28-55mm)
Samples:
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1 Set(Min.Order)

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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:

  • Material Composition:

Ceramic Ball Bearings:

Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.

Traditional Steel Ball Bearings:

Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.

  • Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

  • Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

  • Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

  • Speed and Precision:

Ceramic Ball Bearings:

Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.

Traditional Steel Ball Bearings:

Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.

  • Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

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editor by CX 2024-04-15