Tag Archives: carbon bearing

China supplier China Manufacturer Double Shielded Miniature High Carbon Chrome Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz) deep groove ball bearing

Product Description

China Factory 3d Printer Parts Deep Groove Ball Bearing 623zz 624zz 625zz 626zz 635zz 608zz 688zz

Single row deep groove ball bearings are particularly versatile. They are simple in design, non-separable, suitable for high and even very high speeds and are robust in operation, requiring little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads, even at high speeds.

1. 623zz : 3mm*10mm*4mm
2. 624zz : 4mm*13mm*5mm
3. 625zz : 5mm*16mm*5mm
4. 626zz : 6mm*19mm*6mm
5. 608zz : 8mm*22mm*7mm
6. 688zz : 8mm*16mm*5mm
7. 635zz : 5mm*19mm*6mm

Detailed Photos

Product Parameters

Product Description

Any combination of closures is available

Basic Bearing No.	Nominal Bearing Dimensions						Preferred Shoulder Diameters
	d		D		B,C		r (min)		da (min)		da (max)		Da (max)
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
604	4	0.1575	12	0.4724	4	0.1575	0.2	0.008	5.4	0.2126	6.6	0.2598	10.6	0.4173
605	5	0.1969	14	0.5512	5	0.2756	0.2	0.008	6.6	0.2600	7.4	0.2913	12.4	0.4880
606	6	0.2362	17	0.6693	6	0.2756	0.3	0.012	8.0	0.3150	8.6	0.3386	15.0	0.5910
607	7	0.2756	19	0.748	6	0.2756	0.3	0.012	9.0	0.3543	10.4	0.4094	17.0	0.6693
608	8	0.3149	22	0.8661	7	0.2756	0.3	0.012	10.0	0.3937	12.2	0.4803	10.0	0.7874
609	9	0.3543	24	0.9449	7	0.2756	0.3	0.012	11.0	0.4331	13.1	0.5157	12.0	0.8661

Basic Bearing No.	Nominal Bearing Dimensions						Preferred Shoulder Diameters
	d		D		B,C		r (min)		da (min)		da (max)		Da (max)
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
624	4	0.1575	13	0.5118	5	0.1968	0.2	0.007	5.6	0.220	6.2	0.244	11.4	0.449
625	5	0.1969	13	0.6299	5	0.1968	0.3	0.012	7.0	0.276	7.6	0.299	14.0	0.551
626	6	0.2362	16	0.7480	6	0.2362	0.3	0.012	8.0	0.315	9.5	0.374	17.0	0.669
627	7	0.2756	22	0.8661	7	0.2756	0.3	0.012	9.0	0.354	12.2	0.480	20.0	0.787
628	5	0.3149	24	0.9448	8	0.3149	0.3	0.012	10.0	0.394	12.1	0.476	17.0	0.669
629	9	0.3543	26	1.5716	8	0.3149	0.3	0.012	11.5	0.453	…	…	14.0	0.945

Basic Bearing No.	Nominal Bearing Dimensions						Preferred Shoulder Diameters
	d		D		B,C		r (min)		da (min)		da (max)		Da (max)
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
635	5	0.1969	19	0.7480	6	0.2362	0.3	0.012	7.0	0.276	9.5	0.374	17.0	0.669
636	6	0.2362	22	0.8661	7	0.8661	0.3	0.012	…	…	…	…	…	…
637	7	0.2756	26	1.5716	9	0.3543	0.3	0.012	…	…	…	…	…	…
638	8	0.3149	28	1.1571	9	0.3543	0.3	0.012	10.0	0.394	…	…	26.0	1.571
639	9	0.3543	30	1.1811	10	0.3937	0.6	0.571	…	…	…	…	…	…

Basic Bearing No.	Nominal Bearing Dimensions								Preferred Shoulder Diameters
	d		D		B				r (min)		da (min)		da (max)		Da (max)
	d		D		Open		Shielded sealed		r (min)		da (min)		da (max)		Da (max)
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
685	5	0.1969	11	0.4331	3	0.1181	5	0.1969	0.15	0.006	6.2	0.244	6.2	0.244	9.9	0.390
686	6	0.2362	13	0.5118	3.5	0.1378	5	0.1969	0.15	0.006	7.4	0.291	7.4	0.291	11.7	0.461
687	7	0.2756	14	0.5512	3.5	0.1378	5	0.1969	0.15	0.006	8.5	0.335	8.5	0.335	12.7	0.500
688	8	0.3150	16	0.6299	4	0.1575	5	0.1969	0.20	0.008	…	…	…	…	…	…
689	9	0.3543	17	0.6693	4	0.1575	5	0.1969	0.20	0.008	10.7	0.421	10.7	0.421	15.2	0.598

Basic Bearing No.	Nominal Bearing Dimensions						Preferred Shoulder Diameters
	d		D		B,C		r (min)		da (min)		da (max)		Da (max)
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
693	3	0.1181	8	0.3150	3	0.1181	0.15	0.006	4.3	0.169	4.3	0.169	7.3	0.287
W693	3	0.1181	8	0.3150	4	0.1575	0.15	0.006	4.2	0.165	4.2	0.165	6.8	0.268
694	4	0.1575	11	0.4331	4	0.1575	0.20	0.008	5.2	0.205	5.2	0.205	9.8	0.386
695	5	0.1969	13	0.5118	4	0.1575	0.20	0.008	6.6	0.260	6.6	0.260	11.4	0.449
696	6	0.2362	15	0.5906	5	0.1969	0.30	0.012	7.6	0.299	7.6	0.299	13.4	0.528
697	7	0.2756	17	0.6693	5	0.1969	0.30	0.012	9.0	0.354	9.0	0.354	15.0	0.591
698	8	0.3150	19	0.7480	6	0.2362	0.30	0.012	10.0	0.394	10.0	0.394	16.5	0.650
699	9	0.3543	20	0.7874	6	0.2362	0.30	0.012	11.0	0.433	11.6	0.457	18.0	0.709

Common Options
Z ZZ RS 2RS	: One Shield : Two Shields : One Contact Seal : Two Contact Seals

/* 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

Aligning:	Non-Aligning Bearing
Separated:	Unseparated
Rows Number:	Single
Load Direction:	Radial Bearing
Material:	Bearing Steel
Transport Package:	Industrial Exporting Packing,or Upon The Customer′

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 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 supplier China Manufacturer Double Shielded Miniature High Carbon Chrome Steel Mini Deep Groove Ball Bearing (608zz 623zz 624zz 625zz 626zz 688zz 635zz) deep groove ball bearing
editor by CX 2024-04-17

China manufacturer Carbon Steel 608zz 608RS 608 2RS Zz Miniature Deep Groove Ball Bearing Skateboard Skates Roller 608 Ball Bearing 8227mm with Good quality

Product Description

Deep groove ball bearings are the most representative of rolling bearings, with simple structure, They are easy to use and versatile .
Such bearings are non-separabal bearings,the inner and outer rings are rolled into a ditch arc type. They can bear radial load and axial load,with low coefficient of friction,high limiting speed .They are suitable for high-spped,low noise ,low vibration cccasions.
Deep groove balll bearings are widely used in auto-mobiles,machinetools,motors,instrumentation,construction machinery,railway vehicles,agricultural machinery and various equipment in machinery industry.

Product Parameters

Eaaring No	Di d	mension D	(mm) B	Mass(kg)	Bearing No	DI d	mension D	(mm) B	Mass(kg)
604	4	12	4.0		6212	60	110	22	0.780
606	6	17	17.0		6213	65	120	23	0.990
608		22	7.0	0.0080	8214	70	125	24	1.050
623	3	10	4.0	0.571	6215	75	130	25	1.200
625	5	16	5.0	0.0050	6216	80	140	26	1.400
634	4	16	5.0	0.0050	6217	85	150	28	1.800
635	5	19	6.0	0.0080	6218	90	160	30	2.150
680	9	22	7.0		6219	95	170	32	2.600
618/3	3	7	2.0	0.0003	6220	100	100	34	3.150
618/4	4	9	2.5	0.0006	6221	105	190	36	00
618/5	5	11	3.0	0.0120	6222	10	200	38	4.350
6000	10	26	8.0	0.0190	6300	10	35	11	0.053
6001	12	20	8.0	0.5710	6301	12	37	12	0.060
6002	15	32	9.0	0.0300	6302	15	42	13	0.082
6003	17	35	10.0	0.0390	6303	17	47	14	0.120
6004	20	42	120	0.0690	6304	20	52	15	0.140
6005	25	47	12.0	0.0800	6205	25	62	17	0.230
6006	30	55	13.0	0.1200	6306	30	72	19	0.3680
6007	35	62	14.0	0.1600	6207	35	80	21	0.460
6008	40	68	15.0	0.1900	6309	40	90	23	0.630
6009	45	75	16.0	0.2500	6309	45	100	25	0.830
6571	50	80	16.0	0.2600	6310	50	110	27	1.050
6011	55	90	18.0	0.3000	6311	55	120	29	1.350
6012	0	96	18.0	0.4200	6312	60	130	31	1.700
6013	65	100	18.0	0.4400	6313	65	140	33	2.100
6014	70	110	20.0	0.6000	6314	70	150	35	2.500
6015	75	115	20.0	0.6400	6315	75	160	37	3.000
6016	80	120	22.0	0.8500	6316	80	170	39	3.600
6017	85	130	22.0	0.8900	6217	85	180	41	4.260
6018	90	140	24.0	1.1500	6318	90	190	43	4.900
6019	95	145	24.0	1.2000	6319	95	200	45	5.650
6571	100	150	24.0	1.2500	6320	100	215	47	7.000
6571	105	160	26.0	16,000	6401	12	42	13	0.048
6571	110	170	28.0	1.9500	6402	15	52	15	0.137
6200	10	30	9.0	0.0320	6403	17	62	17	0.271
850	12	32	10.0	0.571	6404	20	72	19	0.408
6202	15	35	11.0	0.0450	6405	25	80	21	0.528
6203	17	40	12.0	0.0650	6406	30	90	23	0.720
6204	20	47	14.0	0.1100	6407	35	100	25	0.936
6205	25	52	15.0	0.1300	6408	40	110	27	1.200
6206	30	62	16.0	0.2000	6409	45	120	28	1.550
6207	35	72	17.0	0.2900	6410	50	130	31	1.910
6208	40	80	18.0	0.3700	6411	55	140	33	2.320
6209	45	85	19.0	0.4100	6412	60	150	35	2.790
6210	0	90	20.0	0.4600	6413	65	160	37	3.360
6211	55	100	21.0	0.6100	6414	70	180	42	5.000
“Aval lable typas:apan,Z.ZZ,RS;2RS,N,ZN

OUR PRODUCTS

SCOPE OF APPLICATION

Packaging & Shipping

FAQ

Q1,What kind of factory are we?

A:We are based in ZheJiang , China, selling to Southeast Asia,North America, Africa, Oceania, South America,
South Asia, and Europe.

Q2,what can you buy from us?

A:Electric Motorcycle, Electric Tricycle, Electric Balance, Electric Scooter, and Their Parts.

Q3,How can we guarantee quality?

A:We always have a pre-production sample before mass production. We always conduct a final inspection before shipment. We have
departments responsible for after-sales service.

Q4,What’s our MOQ?

A:We have no minimum order quantity (MOQ) for new customers We accept small orders to support your trial order, new designs, and
marketing development.

Q5,Why did you choose us?

A:We have been engaged early in the development, production, sales, and service of electric vehicles in China. We welcome
customers, business associations, and friends from all over the world to contact us for cooperation and mutual benefit.

/* 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 Option 2:	Stainless Steel
Lubrication:	Grease or Oil
Aligning:	Non-Aligning Bearing
Separated:	Unseparated
Model No.:	608zz 6203 6202 2RS 6207 6005 6201 6206 6309
Load Direction:	Radial Bearing

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 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

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China manufacturer Carbon Steel 608zz 608RS 608 2RS Zz Miniature Deep Groove Ball Bearing Skateboard Skates Roller 608 Ball Bearing 8*22*7mm with Good quality
editor by CX 2024-04-10

China factory High Chrome Carbon Bearing Steel Gcr15 Stainless Steel SUS440 95cr18 SUS420 30cr13 6204 6205 608 6003 6202 6001 6004 6302 6303 2RS Zz Deep Groove Ball Bearing bearing and race

Product Description

PRODUCT PICTURES

OUR SERVICES

We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.

BEARING:
— Dimensions
— Material
— Tolerance standard

APPEARANCE:
— Logo (Laser Marking)
— Package Design

40+ YEARS EXPERIENCE
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.

We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining. All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.

OWN HEAT TREATMENT
CONTROALLABLE COST AND QUALITY.

Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time.

We have 6 heat treatment production lines.

Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.

OUTSTXIHU (WEST LAKE) DIS. QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.

All our products are characterized by low noise, low friction and long life. This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.

Our products fully meets the requirements of national and international standards according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.

PACKING
PACKAGING THAT HELPS SELL.

1, Inner package
Corrosion and Dust Proof PE plastic film / bag packing + Tube packing, or Wrapping tape for larger bearings.

2, Corrugated Individual Box
Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
Corrugated carton + Wooden pallet

MODERN WELL-ORGANIZED WAREHOUSE

· Constant temperature (20°C) and humidity (RH 52%) warehouse
· Hundreds of models on hand, short delivery time.

HONOR & SYSTEM CERTIFICATES

EXHIBITION

SAMPLES POLICY

FREE SAMPLES AND SHIPPING

We are happy to send you free samples of our bearings for field testing. All transportation costs will be paid by us.

Please note: Depending on the model and value of samples, this policy may not apply!

Please contact our sales staff for details.

TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK

PAYMENT TERMS
To facilitate your payment, we offer a variety of options!

FAQ

1, About the lead time.

This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:

If the model your Preferred is	Sufficient stock	Lead Time
Regular models	YES	Within 7 days
Regular models	NO	Within 30 days
Non-regular model	NO	About 50 days

For accurate estimate, please contact with our sale stuff. Thanks.

2, Minimum order quantity.

Even just ONE piece of bearing is ok for us.

3, If you don’t know which model is the right choice…

We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.

4, Factory Inspection

We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.

OPTIONS OF SPECIFICATION AND STHangZhouRD

Subject	Symbol	Description
Sealing & Sealing type	Z	Metal shield on 1 side.
	ZZ	Metal shields on both sides.
	RS	Rubber seal on 1 side.
	2RS	Rubber seals on both sides.
	ZNR	Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield
	2ZNR	Shield on both sides, snap ring groove in the outer ring, with snap ring
	ZNBR	Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield
Vibration Velocity	V	Normal vibration level. Is not indicated as a standard.
	V1	Lower vibration level than normal.
	V2	Lower vibration level than V1.
	V3	Lower vibration level than V2.
	V4	Lower vibration level than V3.
Tolerances	P0(ABEC1)	Bearings in standard tolerance
	P6(ABEC3)	Tighter tolerance than standard bearings
	P5(ABEC5)	Tolerance tighter than P6
	P4(ABEC7)	Tolerance tighter than P5
	P2(ABEC9)	Tolerance tighter than P4
Radial internal clearance	C1	Smaller clearance than C2
	C2	Smaller clearance than CN
	CN(C0)	Clearance than normal
	C3	Clearance larger than CN
	C4	Clearance larger than C3
	C5	Clearance larger than C4
Snap Ring Groove	N	Snap ring groove in the outer ring
	NR	Snap ring groove in the outer ring, with snap ring
	N1	One locating slot in 1 outer ring side face
	R	Flanged outer ring
Other technical modifications	NR	Groove with inserted snap ring in outer ring.
	N	Snap ring groove in the outer ring.
	SS	Stainless steel.

Cage Materials	J	Pressed steel cages
	M	Solid brass cage
	F	Solid cage made from steel or iron
	Y	Pressed brass cages.
	T	Laminated phenolic cages.
	TN	Polyamide cages
	TH	Glass-fiber reinforced phenolic resin cages.
	TV	Polyamide cage
Cage Designs	P	Window-type cage
	H	Claw-type cage
	A	Cage guided on the bearing outer ring
	B	Cage-guided on the bearing inner ring
	S	Cage with lubricating slots in the guiding surfaces
	D	Carbonitriding cage
	W	Welded cage
	R	Riveted Cage
Cage Types	N/A	Claw-type cage
		Ribbon cage
		Crown cage
		Sunflower cage
		Tapered cage

PRODUCT PARAMETERS

This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.

Designation	Boundary Dimension (mm)			Limiting Speed (rpm)		Load Rating (Kn)		Weight
Designation	Inner Diameter (d)	Outside Diameter (D)	Width (B)	Grease Lubrication	Oil Lubrication	Dynamic Load (cr)	Static Load (cor)	Weight (kg)
6301	12	17	12	17000	22000	9.72	5.08	0.06
6302	15	42	13	16000	20000	11.5	5.42	0.082
6303	17	47	14	15000	18000	13.5	6.58	0.115
6304	20	52	15	13000	16000	15.8	7.88	0.142
6305	25	62	17	11000	13000	20.6	11.3	0.232
6306	30	72	19	6600	12000	26.7	15	0.346
6307	35	80	21	8500	10000	33.4	19.3	0.457
6308	40	90	23	7000	8500	40.8	24	0.639
6309	45	100	25	6300	7500	52.8	31.8	0.837
6310	50	110	27	6000	7000	61.8	38	1.082
6311	55	120	29	5600	6700	71.5	44.8	1.367
6312	60	130	31	5000	6000	81.8	51.8	1.71
6313	65	140	33	4500	5300	93.8	60.5	2.1
6313	70	150	35	4300	5000	105	68	2.55
6315	75	160	37	4000	4800	113	76.8	3.05
6316	80	170	39	3800	4500	123	86.5	3.61
6317	85	180	41	3600	4300	132	96.5	4.284
6318	90	190	43	3400	4000	145	108	4.97
6319	95	200	45	3200	3800	157	122	5.74
6320	100	215	47	2800	3600	173	140	7.09
6321	105	225	49	2600	3200	184	153	8.05
6322	110	240	50	2400	3000	205	178	9.53
6324	120	260	55	2200	2800	228	208	12.2
6326	130	280	58	2000	2600	253	242	14.77
6328	140	300	62	1900	2400	275	272	18.33
6330	150	320	65	1700	2200	288	295	21.87
6332	160	340	68	1600	2000	313	340	26.43

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Material Option 2:	Stainless Steel
MOQ:	One Pallet
Seals Options:	Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr

Samples:	US$ 0/Piece 1 Piece(Min.Order) \| Order Sample

Customization:	Available \| Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

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

ball bearing

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

Regular Lubrication:

Clean Environment:

Proper Installation:

Regular Inspections:

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:

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.