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(/(.*?):(.*)$/))&&1
| After-sales Service: | Provided |
|---|---|
| Type: | Engine Bearing |
| Material: | Chrome Steel |
| Tolerance: | P0 |
| Clearance: | C2 |
| ABS: | Without ABS |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
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.
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.
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.
editor by CX 2024-04-16
China Custom CZPT CZPT Suppliers Good Performance Deep Groove Ball Bearing 6002 2RS/Zz 15*32*9 for Engineering Machinery wheel bearing
Product Description
Deep groove ball bearing is 1 of the most widely used rolling bearings. It is characterized by small friction resistance and high speed. It can be used to bear radial load or combined load of radial and axial at the same time. It can also be used to bear axial
load.
Deep groove ball bearing type has single row and double row 2 kinds. divided into sealed and open 2 kinds of structure, open refers to the bearing does not have a sealed structure, sealed deep groove ball bearing is divided into dust-proof seal (2Z)and oil-proof seal (2RS).
Deep groove ball bearing can be used for gearbox, instrument, motor, household appliances,internal combustion engine, traffic vehicles, agricultural machinery, construction machinery, engineering machinery.
| NO. | Bearing type | Dimension(mm) | Weight | |||
| d | D | B(Open) | B(ZZ/2RS) | (KG) | ||
| 1 | R10 | 15.875 | 34.925 | 7.143 | 8.73 | 0.037 |
| 2 | R12 | 19.05 | 41.275 | 7.938 | 11.112 | 0.047 |
| 3 | R14 | 22.225 | 47.625 | 9.525 | 12.7 | 0.071 |
| 4 | R16 | 25.4 | 50.8 | 9.525 | 12.7 | 0.085 |
| 5 | R18 | 28.575 | 53.975 | 9.525 | 12.7 | 0.09 |
| 6 | R20 | 31.75 | 57.15 | 9.525 | 12.7 | 0.094 |
| 7 | R155 | 3.969 | 7.938 | 2.779 | 3.175 | |
| 8 | R156 | 4.763 | 7.938 | 2.779 | 3.175 | |
| 9 | R166 | 4.763 | 9.525 | 3.175 | 3.175 | |
| 10 | R168 | 6.35 | 9.525 | 3.175 | 3.175 | |
| 11 | R188 | 6.35 | 12.7 | 3.175 | 4.763 | |
| 12 | R1601 | 4.763 | 17.462 | 6.35 | 7.938 | |
| 13 | R1603 | 7.938 | 22.225 | 7.142 | 8.731 | |
| 14 | R1038 | 9.525 | 15.875 | 3.967 | 3.967 | |
| 15 | R1212 | 12.7 | 19.05 | 3.967 | 3.967 | |
| 16 | 692 | 2 | 6 | 2.3 | 3 | 0.00031 |
| 17 | 693 | 3 | 8 | 3 | 4 | 0.00061 |
| 18 | 694 | 4 | 11 | 4 | 4 | 0.0018 |
| 19 | 695 | 5 | 13 | 4 | 4 | 0.0571 |
| 20 | 696 | 6 | 15 | 5 | 5 | 0.0038 |
HIGH
HARDNESS
Long use time is not easy to wear,
meticulous workmanship
STABLE
PERFORMANCE
Stable operation, not easy to hot
suitable for a variety of scenarios
HIGH QUALITY
REARING STEEI
The product is made
of bearing steel with uniform
hardness and wear resistance
Bearing products are widely used in railway, aerospace, light and heavy industry, food machinery and many other fields.
ZheJiang Deruna Bearing Co.,Ltd.is a pro-fessional bearing factory and trading companyin HangZhou, ZheJiang .Now we have a group of outstanding technicalpersonnel with rich experience and many yearsof work,and advanced automatic productionine of bearings.Our factory mainly produce pillow block bearing with housing,deepgroove ball bearing, tapered roller bearing and sales of other types of bearings. With our serious effort in the bearing field for nearly 20 years, we have the extensive experience of working with many internationally renowned companies.
In order to supply even more stable quality to our vast customers, we established a factory in Liao Cheng city,ZheJiang province.
Beside standard specifications, we also provide the customized service.Welcome all of customers visit our factory . We look forward to establishing a good long-termbusiness relationship with you.
1.I couldn’t find a design to fit my application in your catalog. Can you help me design a bearing?
Yes, technical expertise is available to assist you with engineering design for custom products. Available options include, but are not limited to, custom rings, retainers, balls, shields, lubricants, and packaging. We look forward to working with you to satisfy your rotary motion requirements.
2.How Can We Guarantee Quality?
We have professional inspection equipment and quality inspection personnel. Firstly, we will strictly control the production of products in the production process, and strictly screen the finished products after they are finished.
3.How Long is Your Delivery Time?
Generally takes about 7-15 working days for production based on specifications for your order and quantity. Inventory bearings can arrange shipment immediately after payment received.
4.Where is your port of shipment located?
Our main port of shipment is HangZhou & Qindao port, and we may operate at other ports if required by the customer.
5.What is Your Terms of Payment ?
Payment1,000usd, 30% T/t in Advance, Balance Before Shipment.
/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Cage: | Steel Cage.Copper Cage |
|---|---|
| Seals Type: | Open |
| Feature: | Long Life |
| Bearings Type: | Ball Bearing |
| Vibration: | Z1V1 Z2V2 Z3V3 |
| Aligning: | Non-Aligning Bearing |
| Samples: |
US$ 0.5/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
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.
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.
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.
editor by CX 2024-02-24
China wholesaler 6002 Zz 2RS Deep Groove Ball Bearing for Electric Machines Size 15*32*9mm 6002 Deep Groove Ball Bearing ball bearing
Product Description
Introduction and use of bearings
Deep groove ball bearing is simple in structure and convenient in use.
It is the bearing with the largest production scale and the
widest application range.
Widely used in automobiles, household appliances, machine tools, motors, pumps, agricultural machinery, textile machinery and many other fields.
|
Product Name |
6002 ZZ 2RS deep groove ball bearing for electric machines size 15*32*9mm 6002 deep groove ball bearing |
|||
|
Size |
35x80x21mm |
|||
|
Material |
304 stainless steel |
|||
|
Precision |
P0 P5 P6 |
|||
|
Sealing |
ZZ/RS |
|||
|
Delivery date |
Normally ready goods and stock within 3-15 days |
|||
|
Payment terms |
A:100% TT |
|||
|
Application |
Auto, tractor ,machine tool, electric machine, water pump, agricultural machinery and textile machinery |
|||
|
Package |
Industrial package or according to buyers’ requirement |
|||
|
Details |
Deep groove ball bearings are simple, easy to use, is the largest production volume, most widely used of a class of bearings. It is mainly used for a bear radial load, but also bear certain axial load. When the bearing radial clearance increased when the function with angular contact bearings can bear large axial load. |
|||
|
Special properties |
1. High accuracy |
|||
Why Choose Us ?
1. 420 stainless steel for inner ring and outer ring
2. 304 stainless steel cage
3. 420 stainless steel balls
4. Dry lube/ Grease/ OilRelated Products
5. Rubber seals/ ZZ metal shields
6. High speed
7. Long spin time
8. Low friction
9. Rustproof and corrosion resistance
10. Durable
11. Easy to maintenance
Related Products
FAQ
Q1: Are you a Manufacturer or trading company?
Answer: We are professional manufactuer of bearings since 1998 with ISO standards.
Q2: Can I get a sample to check out the quality?
Answer: Sure, free samples are available for stock products if you can pay for the shipping cost.
Q3: Can you do OEM to print my logo/brand on the products?
Answer: Yes, we can print your logo/brand on the products, you just need to send us your logo/brand files, we will show you how it looks like.We can also make custom package to your request.
Q4: How soon can I expect my order to be finished?
Answer: We have regular stock for standard bearings that can be shipped right after your payment. It will take 15-60 days for new production order,which depends on your order quantity.
Q5: What if I receive defective products for my order?
Answer: All our bearings are 100% inspected strictly before packing. If any defective products received, please provide photos and video to show us the problem and help us improve the quality. New products will be sent to you as replacement if the probelm is product quality.
| Contact Angle: | 0 |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Customization: |
Available
| Customized Request |
|---|
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,
How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?
Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:
- Size:
The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.
- Load Capacity:
Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.
- Precision:
Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.
- Speed:
Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.
- Friction and Efficiency:
Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.
- Applications:
Miniature ball bearings find applications in various industries and sectors:
- Electronics and Consumer Devices:
They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.
- Medical and Dental Equipment:
Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.
- Robotics and Automation:
Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.
- Aerospace and Defense:
They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.
- Optics and Instrumentation:
Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.
Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.
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.
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.
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.
editor by CX 2023-08-23
China Standard Auto Part Motorcycle Spare Part Wheel Bearing 6000 6002 6004 6200 6204 6300 6302 6400 6402 Zz 2RS Deep Groove Ball Bearing for Electrical Motor, Fan, Skateboard bearing air
Product Description
Auto Part motorcycle spare part wheel bearing 6402 Zz 2RS Deep Groove Ball Bearing for Electrical Motor, fan,skateboard
Product Description
General information of CZPT deep groove ball bearing
ZYS deep groove ball bearing consists of an outer ring, an inner ring, a group of steel balls and a group of cages. There are 2 types of deep groove ball bearings: single row and double row. Deep groove ball structure is also divided into seal and open structure. The open type means that the bearing has no sealing structure. The sealed deep groove ball is divided into dust-proof seal and oil-proof seal. The dust-proof seal cover is made of steel plate, which only serves as a simple way to prevent dust from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent grease overflow in the bearing.
Working principle of CZPT deep groove ball bearing
It mainly bears radial load, and also can bear axial load and radial load at the same time. When it only bears radial load, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of angular contact bearing and can withstand large axial load. The friction coefficient of the deep groove ball bearing is very small, and the limit speed is also very high.
Characteristics of CZPT deep groove ball bearing
ZYS Deep groove ball bearings are suitable for high speed operation, and they are very durable without frequent maintenance. This kind of bearing has the characteristics of small friction coefficient, high limit speed, various sizes and forms; they are used in precision instruments, low noise motor, automobile, motorcycle and general machinery and other industries. It is 1 of the most widely used bearing in mechanical industry. It mainly bears radial load, and also can bear a certain amount of axial load.
Application of CZPT deep groove ball bearing
Product Parameters
Technical parameter of CZPT deep groove ball bearing
| Bearing Model | Dimension | Basic Load rating (kN) | Weight (kg) | |||||||||||
| Standard type | shield | seal | With snap ring groove | With snap ring | d | D | B | rsmin | D2 (max) | max | Cr | Cor | ||
| 604 | ZZ | 2RZ | 2RS | N | NR | 4 | 12 | 4 | 0.2 | – | – | 0.806 | 0.28 | 0.0571 |
| 605 | ZZ | 2RZ | 2RS | N | NR | 5 | 14 | 5 | 0.2 | – | – | 1.33 | 0.505 | 0.0035 |
| 606 | ZZ | 2RZ | 2RS | N | NR | 6 | 17 | 6 | 0.3 | – | – | 1.95 | 0.75 | 0.0060 |
| 607 | ZZ | 2RZ | 2RS | N | NR | 7 | 19 | 6 | 0.3 | – | – | 2.34 | 0.95 | 0.0080 |
| 608 | ZZ | 2RZ | 2RS | N | NR | 8 | 22 | 7 | 0.3 | – | – | 3.45 | 1.37 | 0.012 |
| 609 | ZZ | 2RZ | 2RS | N | NR | 9 | 24 | 7 | 0.3 | – | – | 3.9 | 1.66 | 0.014 |
| 6000 | ZZ | 2RZ | 2RS | N | NR | 10 | 26 | 8 | 0.3 | 29.2 | 0.7 | 4.55 | 1.97 | 0.018 |
| 6001 | ZZ | 2RZ | 2RS | N | NR | 12 | 28 | 8 | 0.3 | 30.8 | 0.85 | 5.00 | 2.30 | 0.571 |
| 6002 | ZZ | 2RZ | 2RS | N | NR | 15 | 32 | 9 | 0.3 | 36.7 | 1.12 | 5.50 | 2.80 | 0.030 |
| 6003 | ZZ | 2RZ | 2RS | N | NR | 17 | 35 | 10 | 0.3 | 39.7 | 1.12 | 6.00 | 3.25 | 0.040 |
| 6004 | ZZ | 2RZ | 2RS | N | NR | 20 | 12 | 0.6 | 46.3 | 1.12 | 9.38 | 5.03 | 0.068 | |
| 6005 | ZZ | 2RZ | 2RS | N | NR | 25 | 47 | 12 | 0.6 | 52.7 | 1.12 | 10.1 | 5.83 | 0.079 |
| 6006 | ZZ | 2RZ | 2RS | N | NR | 30 | 55 | 13 | 1 | 60.7 | 1.12 | 13.2 | 8.30 | 0.113 |
| 6007 | ZZ | 2RZ | 2RS | N | NR | 35 | 62 | 14 | 1 | 67.7 | 1.7 | 16.2 | 10.4 | 0.149 |
| 6008 | ZZ | 2RZ | 2RS | N | NR | 40 | 68 | 15 | 1 | 74.6 | 1.7 | 17.0 | 11.7 | 0.185 |
| 6009 | ZZ | 2RZ | 2RS | N | NR | 45 | 75 | 16 | 1 | 81.6 | 1.7 | 21.0 | 14.8 | 0.231 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 50 | 80 | 16 | 1 | 86.6 | 1.7 | 22.0 | 16.3 | 0.250 |
| 6011 | ZZ | 2RZ | 2RS | N | NR | 55 | 90 | 18 | 1.1 | 96.5 | 2.46 | 30.3 | 22.0 | 0.362 |
| 6012 | ZZ | 2RZ | 2RS | N | NR | 60 | 95 | 18 | 1.1 | 101.6 | 2.46 | 31.7 | 24.2 | 0.385 |
| 6013 | ZZ | 2RZ | 2RS | N | NR | 65 | 100 | 18 | 1.1 | 106.5 | 2.46 | 32.0 | 24.8 | 0.430 |
| 6014 | ZZ | 2RZ | 2RS | N | NR | 70 | 110 | 20 | 1.1 | 116.6 | 2.46 | 38.6 | 30.4 | 0.569 |
| 6015 | ZZ | 2RZ | 2RS | N | NR | 75 | 115 | 20 | 1.1 | 121.6 | 2.46 | 40.2 | 33.2 | 0.603 |
| 6016 | ZZ | 2RZ | 2RS | N | NR | 80 | 125 | 22 | 1.1 | 134.7 | 2.82 | 47.5 | 39.8 | 0.821 |
| 6017 | ZZ | 2RZ | 2RS | N | NR | 85 | 130 | 22 | 1.1 | 139.7 | 2.82 | 50.8 | 42.8 | 0.848 |
| 6018 | ZZ | 2RZ | 2RS | N | NR | 90 | 140 | 24 | 1.5 | 149.7 | 2.82 | 58.0 | 49.9 | 1.12 |
| 6019 | ZZ | 2RZ | 2RS | N | NR | 95 | 145 | 24 | 1.5 | 154.7 | 2.82 | 57.7 | 50.0 | 1.18 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 100 | 150 | 24 | 1.5 | 159.7 | 2.82 | 60.5 | 54.0 | 1.25 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 105 | 160 | 26 | 2 | 169.7 | 2.82 | 72.8 | 65.5 | 1.60 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 110 | 170 | 28 | 2 | 182.9 | 3.1 | 81.9 | 72.9 | 1.93 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 120 | 180 | 28 | 2 | 192.9 | 3.1 | 87.7 | 79.3 | 2.03 |
| 6026 | ZZ | 2RZ | 2RS | N | NR | 130 | 200 | 33 | 2 | 212.9 | 3.1 | 105 | 96.8 | 3.15 |
| 6571 | ZZ | 2RZ | 2RS | N | NR | 140 | 210 | 33 | 2 | 222.8 | 3.1 | 111 | 108 | 3.35 |
| 6030 | ZZ | 2RZ | 2RS | N | NR | 150 | 225 | 35 | 2.1 | 237 | 3.5 | 125 | 125 | 4.80 |
| 6032 | ZZ | 2RZ | 2RS | – | — | 160 | 240 | 38 | 2.1 | — | – | 137 | 135 | 5.15 |
| 6034 | ZZ | 2RZ | 2RS | – | — | 170 | 260 | 42 | 2.1 | — | – | 161 | 161 | 6.89 |
| 6036 | ZZ | 2RZ | 2RS | – | — | 180 | 280 | 46 | 2.1 | — | – | 180 | 185 | 8.88 |
| 6038 | ZZ | 2RZ | 2RS | – | — | 190 | 290 | 46 | 2.1 | — | – | 188 | 201 | 9.39 |
| 6040 | ZZ | 2RZ | 2RS | – | — | 200 | 310 | 51 | 2.1 | — | – | 207 | 226 | 12 |
| 6044 | ZZ | 2RZ | 2RS | – | — | 220 | 340 | 56 | 3 | — | – | 235 | 271 | 18.6 |
| 6048 | ZZ | 2RZ | 2RS | – | — | 240 | 360 | 56 | 3 | — | – | 244 | 296 | 19.9 |
| 6052 | ZZ | 2RZ | 2RS | – | — | 260 | 400 | 65 | 4 | — | – | 291 | 375 | 29.4 |
| Bearing Model | Dimension | Basic Load rating (kN) |
Weight (kg) |
|||||||||||
| Standard type |
shield | seal | With snap ring groove |
With snap ring |
d | D | B | rsmin | D2 (max) |
max | Cr | Cor | ||
| 624 | ZZ | 2RZ | 2RS | N | NR | 4 | 13 | 5 | 0.2 | – | – | 1.15 | 0.4 | 0.0031 |
| 625 | ZZ | 2RZ | 2RS | N | NR | 5 | 16 | 5 | 0.3 | – | – | 1.88 | 0.68 | 0.0048 |
| 626 | ZZ | 2RZ | 2RS | N | NR | 6 | 19 | 6 | 0.3 | – | – | 2.80 | 1.05 | 0.0081 |
| 627 | ZZ | 2RZ | 2RS | N | NR | 7 | 22 | 7 | 0.3 | – | – | 3.28 | 1.35 | 0.013 |
| 628 | ZZ | 2RZ | 2RS | N | NR | 8 | 24 | 8 | 0.3 | – | – | 3.35 | 1.40 | 0.017 |
| 629 | ZZ | 2RZ | 2RS | N | NR | 9 | 26 | 8 | 0.3 | – | – | 4.45 | 1.95 | 0.571 |
| 6200 | ZZ | 2RZ | 2RS | N | NR | 10 | 30 | 9 | 0.6 | – | – | 5.1 | 2.39 | 0.032 |
| 6201 | ZZ | 2RZ | 2RS | N | NR | 12 | 32 | 10 | 0.6 | 36.7 | 1.12 | 6.00 | 2.70 | 0.036 |
| 6202 | ZZ | 2RZ | 2RS | N | NR | 15 | 35 | 11 | 0.6 | 39.7 | 1.12 | 7.80 | 3.75 | 0.045 |
| 6203 | ZZ | 2RZ | 2RS | N | NR | 17 | 40 | 12 | 0.6 | 44.6 | 1.12 | 9.56 | 4.75 | 0.065 |
| 6204 | ZZ | 2RZ | 2RS | N | NR | 20 | 47 | 14 | 1 | 52.7 | 1.12 | 12.7 | 6.55 | 0.103 |
| 6205 | ZZ | 2RZ | 2RS | N | NR | 25 | 52 | 15 | 1 | 57.9 | 1.12 | 14.0 | 7.80 | 0.127 |
| 6206 | ZZ | 2RZ | 2RS | N | NR | 30 | 62 | 16 | 1 | 67.7 | 1.7 | 19.5 | 11.2 | 0.203 |
| 6207 | ZZ | 2RZ | 2RS | N | NR | 35 | 72 | 17 | 1.1 | 78.6 | 1.7 | 25.5 | 15.3 | 0.287 |
| 6208 | ZZ | 2RZ | 2RS | N | NR | 40 | 80 | 18 | 1.1 | 86.6 | 1.7 | 30.7 | 19.0 | 0.367 |
| 6209 | ZZ | 2RZ | 2RS | N | NR | 45 | 85 | 19 | 1.1 | 91.6 | 1.7 | 33.2 | 21.6 | 0.416 |
| 6210 | ZZ | 2RZ | 2RS | N | NR | 50 | 90 | 20 | 1.1 | 96.5 | 2.46 | 35.1 | 23.2 | 0.462 |
| 6211 | ZZ | 2RZ | 2RS | N | NR | 55 | 100 | 21 | 1.5 | 106.5 | 2.46 | 43.4 | 29.2 | 0.607 |
| 6212 | ZZ | 2RZ | 2RS | N | NR | 60 | 110 | 22 | 1.5 | 116.6 | 2.46 | 47.5 | 32.5 | 0.783 |
| 6213 | ZZ | 2RZ | 2RS | N | NR | 65 | 120 | 23 | 1.5 | 129.7 | 2.82 | 55.9 | 40.5 | 0.990 |
| 6214 | ZZ | 2RZ | 2RS | N | NR | 70 | 125 | 24 | 1.5 | 134.7 | 2.82 | 60.5 | 45.0 | 1.10 |
| 6215 | ZZ | 2RZ | 2RS | N | NR | 75 | 130 | 25 | 1.5 | 139.7 | 2.82 | 66.3 | 49.0 | 1.20 |
| 6216 | ZZ | 2RZ | 2RS | N | NR | 80 | 140 | 26 | 2 | 149.7 | 2.82 | 70.2 | 55.0 | 1.40 |
| 6217 | ZZ | 2RZ | 2RS | N | NR | 85 | 150 | 28 | 2 | 159.7 | 2.82 | 83.2 | 64.0 | 1.80 |
| 6218 | ZZ | 2RZ | 2RS | N | NR | 90 | 160 | 30 | 2 | 169.7 | 2.82 | 95.6 | 73.5 | 2.15 |
| 6219 | ZZ | 2RZ | 2RS | N | NR | 95 | 170 | 32 | 2.1 | 182.9 | 3.1 | 108 | 81.5 | 2.60 |
| 6220 | ZZ | 2RZ | 2RS | N | NR | 100 | 180 | 34 | 2.1 | 192.9 | 3.1 | 122 | 92.7 | 3.20 |
| 6221 | ZZ | 2RZ | 2RS | N | NR | 105 | 190 | 36 | 2.1 | 202.9 | 3.1 | 133 | 104 | 3.71 |
| 6222 | ZZ | 2RZ | 2RS | N | NR | 110 | 200 | 38 | 2.1 | 212.9 | 3.1 | 144 | 117 | 4.44 |
| 6224 | ZZ | 2RZ | 2RS | N | NR | 120 | 215 | 40 | 2.1 | 227.8 | 3.1 | 155 | 130 | 5.32 |
| 6226 | ZZ | 2RZ | 2RS | N | NR | 130 | 230 | 40 | 3 | 242 | 3.5 | 165 | 147 | 6.13 |
| 6228 | ZZ | 2RZ | 2RS | N | NR | 140 | 250 | 42 | 3 | 262 | 3.5 | 165 | 125 | 7.45 |
| 6230 | ZZ | 2RZ | 2RS | — | – | 150 | 270 | 45 | 3 | — | – | 174 | 137 | 9.40 |
| 6232 | ZZ | 2RZ | 2RS | — | — | 160 | 290 | 68 | 3 | — | – | 185 | 186 | 12.8 |
| 6234 | ZZ | 2RZ | 2RS | — | – | 170 | 310 | 52 | 4 | — | – | 212 | 224 | 15.8 |
| 6236 | ZZ | 2RZ | 2RS | — | – | 180 | 320 | 52 | 4 | — | – | 227 | 241 | 15.9 |
| 6238 | ZZ | 2RZ | 2RS | — | – | 190 | 340 | 55 | 4 | — | – | 255 | 282 | 22.3 |
| 6240 | ZZ | 2RZ | 2RS | — | – | 200 | 360 | 58 | 4 | — | – | 269 | 310 | 26.7 |
| 6244 | ZZ | 2RZ | 2RS | — | – | 220 | 400 | 65 | 4 | — | – | 310 | 375 | 37.4 |
| 6248 | ZZ | 2RZ | 2RS | — | – | 240 | 440 | 72 | 4 | — | – | 340 | 430 | 50.5 |
| 6252 | ZZ | 2RZ | 2RS | — | – | 260 | 480 | 80 | 5 | — | – | 400 | 540 | 67 |
| 6256 | ZZ | 2RZ | 2RS | — | – | 280 | 500 | 80 | 5 | — | – | 400 | 550 | 70.4 |
| 6260 | ZZ | 2RZ | 2RS | — | — | 300 | 540 | 85 | 5 | — | – | 465 | 670 | 87.8 |
| Bearing Model | Dimension | Basic Load rating (kN) |
Weight (kg) |
|||||||||||
| Standard type |
shield | seal | With snap ring groove |
With snap ring |
d | D | B | rsmin | D2 (max) |
F max | Cr | Cor | ||
| 635 | ZZ | 2RZ | 2RS | N | NR | 5 | 19 | 6 | 0.3 | – | – | 2.34 | 0.95 | 0.0080 |
| 636 | ZZ | 2RZ | 2RS | N | NR | 6 | 22 | 7 | 0.3 | – | – | 0.0134 | ||
| 637 | ZZ | 2RZ | 2RS | N | NR | 7 | – | – | – | – | – | – | ||
| 638 | ZZ | 2RZ | 2RS | N | NR | 8 | 28 | 9 | 0.3 | – | – | 0.5710 | ||
| 639 | ZZ | 2RZ | 2RS | N | NR | 9 | – | – | – | – | – | – | ||
| 6301 | ZZ | 2RZ | 2RS | N | NR | 12 | 37 | 12 | 1 | 41.3 | 1.12 | 9.70 | 4.20 | 0.060 |
| 6302 | ZZ | 2RZ | 2RS | N | NR | 15 | 42 | 13 | 1 | 46.3 | 1.12 | 11.4 | 5.40 | 0.082 |
| 6303 | ZZ | 2RZ | 2RS | N | NR | 17 | 47 | 14 | 1 | 52.7 | 1.12 | 13.5 | 6.55 | 0.115 |
| 6304 | ZZ | 2RZ | 2RS | N | NR | 20 | 52 | 15 | 1.1 | 57.9 | 1.12 | 15.9 | 7.80 | 0.141 |
| 6305 | ZZ | 2RZ | 2RS | N | NR | 25 | 62 | 17 | 1.1 | 67.7 | 1.7 | 22.5 | 11.6 | 0.219 |
| 6306 | ZZ | 2RZ | 2RS | N | NR | 30 | 72 | 19 | 1.1 | 78.6 | 1.7 | 28.1 | 16.0 | 0.350 |
| 6307 | ZZ | 2RZ | 2RS | N | NR | 35 | 80 | 21 | 1.5 | 86.6 | 1.7 | 33.2 | 19.0 | 0.454 |
| 6308 | ZZ | 2RZ | 2RS | N | NR | 40 | 90 | 23 | 1.5 | 96.5 | 2.46 | 31.4 | 22.4 | 0.639 |
| 6309 | ZZ | 2RZ | 2RS | N | NR | 45 | 100 | 25 | 1.5 | 106.5 | 2.46 | 52.7 | 31.5 | 0.836 |
| 6310 | ZZ | 2RZ | 2RS | N | NR | 50 | 110 | 27 | 2 | 116.6 | 2.46 | 61.8 | 38.0 | 1.05 |
| 6311 | ZZ | 2RZ | 2RS | N | NR | 55 | 120 | 29 | 2 | 129.7 | 2.82 | 71.5 | 45.0 | 1.35 |
| 6312 | ZZ | 2RZ | 2RS | N | NR | 60 | 130 | 31 | 2.1 | 139.7 | 2.82 | 81.9 | 52.0 | 1.70 |
| 6313 | ZZ | 2RZ | 2RS | N | NR | 65 | 140 | 33 | 2.1 | 149.7 | 2.82 | 92.3 | 60.0 | 2.10 |
| 6314 | ZZ | 2RZ | 2RS | N | NR | 70 | 150 | 35 | 2.1 | 159.7 | 2.82 | 104 | 68.0 | 2.50 |
| 6315 | ZZ | 2RZ | 2RS | N | NR | 75 | 160 | 37 | 2.1 | 169.7 | 2.82 | 114 | 76.5 | 3.00 |
| 6316 | ZZ | 2RZ | 2RS | N | NR | 80 | 170 | 39 | 2.1 | 182.9 | 3.1 | 124 | 86.5 | 3.60 |
| 6317 | ZZ | 2RZ | 2RS | N | NR | 85 | 180 | 41 | 3 | 192.9 | 3.1 | 133 | 96.5 | 4.25 |
| 6318 | ZZ | 2RZ | 2RS | N | NR | 90 | 190 | 43 | 3 | 202.9 | 3.1 | 143 | 108 | 4.90 |
| 6319 | ZZ | 2RZ | 2RS | N | NR | 95 | 200 | 45 | 3 | 212.9 | 3.1 | 153 | 119 | 5.75 |
| 6320 | ZZ | 2RZ | 2RS | N | NR | 100 | 215 | 47 | 3 | 227.8 | 3.1 | 174 | 140 | 7.00 |
| 6321 | ZZ | 2RZ | 2RS | N | NR | 105 | 225 | 49 | 3 | 237 | 3.5 | 182 | 153 | 8.25 |
| 6322 | ZZ | 2RZ | 2RS | N | NR | 110 | 240 | 50 | 3 | 252 | 3.5 | 205 | 178 | 9.54 |
| 6324 | ZZ | 2RZ | 2RS | – | — | 120 | 260 | 55 | 3 | — | – | 228 | 207 | 12.2 |
| 6326 | ZZ | 2RZ | 2RS | – | — | 130 | 280 | 58 | 4 | — | – | 229 | 216 | 18.0 |
| 6328 | ZZ | 2RZ | 2RS | – | — | 140 | 300 | 62 | 4 | — | – | 251 | 245 | 22.0 |
| 6330 | ZZ | 2RZ | 2RS | – | — | 150 | 320 | 65 | 4 | — | – | 274 | 284 | 22.7 |
| 6332 | ZZ | 2RZ | 2RS | – | — | 160 | 340 | 68 | 4 | — | – | 278 | 287 | 26.2 |
| 6334 | ZZ | 2RZ | 2RS | – | — | 170 | 360 | 72 | 4 | — | – | 325 | 355 | 36.6 |
| 6336 | ZZ | 2RZ | 2RS | – | — | 180 | 380 | 75 | 4 | — | – | 355 | 405 | 43.1 |
| 6338 | ZZ | 2RZ | 2RS | – | — | 190 | 400 | 78 | 5 | — | – | 355 | 415 | 49.7 |
| 6340 | ZZ | 2RZ | 2RS | – | — | 200 | 420 | 80 | 5 | — | – | 380 | 445 | 55.3 |
| 6344 | ZZ | 2RZ | 2RS | – | — | 220 | 460 | 88 | 5 | — | – | 410 | 520 | 73.9 |
| 6348 | ZZ | 2RZ | 2RS | – | — | 240 | 500 | 95 | 5 | — | – | 470 | 625 | 94.4 |
| 6352 | ZZ | 2RZ | 2RS | – | — | 260 | 540 | 102 | 6 | — | – | 505 | 710 | 118 |
| 6356 | ZZ | 2RZ | 2RS | – | — | 280 | 580 | 108 | 6 | — | – | 570 | 840 | 144 |
Company Profile
HangZhou Bearing Research Institute Co., Ltd.,since1958, is the only
state level comprehensive research institute in China’s bearing
industry. We have total assets of 2.06 billion RMB, own 1 research
and development center, 3 industrial bases and cover an area of
more than 47 hectares. We have advanced bearing manufacturing
equipments and world first class testing equipments and have solid
strength in manufacturing, measuring and testing of bearing and
related components with high precision and high reliability. We have
more than 380 technical staff of bearing related disciplines, thus we
maintain a leading position in the aspects of bearing design, basic
theoretical research, lubrication technology, metallic and non-metallic materials, testing and industry standards.
Why choose CZPT bearing:
ZYS has an independent R&D center and a core technology system with independent intellectual property rights. CZPT technical team and R&D equipment scale are at the forefront of the bearing industry. CZPT has many scientific research, testing and service institutions such as the National Bearing Quality Supervision and Inspection Center and the National Bearing Accreditation Laboratory. CZPT has achieved 908 major scientific research projects and has 792 authorized patents.
Simulation analysis and design technology: ZYS has a post-doctoral research station, an experienced team of domestic and foreign experts, complete bearing professional analysis and finite element analysis software, which can systematically analyze and design the mechanics, kinematics and dynamics properties of bearings and bearing components.
Material technology: ZYS specializes in the research and development of bearing special steel, forming and heat treatment technology, bearing lubrication and sealing materials to ensure that the bearings can meet the requirements of various complex working conditions such as long life, impact resistance, heavy load, high and low temperature.
Simulation bench test technology: ZYS possesses test technical specifications, test equipment, and test equipment development capabilities and test data processing and analysis capabilities for various types of bearings under various working conditions, providing strong support for customer product development.
Professional application technical services: ZYS has more than 380 engineering and technical personnel in bearing-related disciplines, and maintains a leading position in bearing design, basic theoretical research, lubrication technology, metal and non-metal materials, testing, and industrial standards. CZPT professional service team provides customers with systematic bearing application technology solutions including bearing selection, design, materials, testing, and process equipment.
Our Advantages
ZYS MANUFACTURING CAPACITY
Certifications
ZYS Quality assurance
ZYS bearing products
Packaging & Shipping
ZYS Packing :
FAQ
Q: Are you trading company or manufacturer?
A: CZPT is bearing manufacturer, the only first-class comprehensive research institute in China bearing industry.
Q: How do you control quality of bearing?
A: CZPT has established quality control systems for each kind of bearing and spindle. All products and services passed ISO9001-2008 Quality Certificate.
Q: What is the MOQ?
A: It depends on the bearing type. You can send inquiry or send e-mail for more information.
Q: How about the package?
A: Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.
Q: How long is the delivery time?
A: It will take about 10 to 40 days, depends on the model and quantity.
Q: How about the shipping?
A: We can arrange the shipment or you may have the forwarder.
Q: Is sample avaiable?
A: Yes, sample order is acceptable.
Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable. We can design the bearing with your requirements and use your own LOGO and package design.
| Contact Angle: | 0 |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Separated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What is a Ball Bearing and How does it Function in Various Applications?
A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:
- Reduction of Friction:
Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.
- Radial and Axial Load Support:
Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.
- Smooth Rotational Movement:
Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.
- Applications in Machinery:
Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.
- Automotive Industry:
Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.
- Industrial Machinery:
In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.
- High-Speed Applications:
Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.
- Precision Instruments:
For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.
- Variety of Sizes and Types:
Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.
In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.
editor by CX 2023-08-11
China Hot Sale Ntn Bearing Japan Ntn Bearing Wholesalers Deep Groove Ball Bearing 6002 drive shaft bearing
Type: BALL
Structure: Deep Groove
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Retail, Energy & Mining
Bore Size: 10 – 10.1 mm
Model Number: 6002LLU
Precision Rating: P2
Number of Row: Single row
Product name: deep groove ball bearings
Parameter value: NTN
Unit: PCS
Unit weight of each item: 30G
Uniform Shipping Time: 14
TITLE: 6002
Products Description
| Product name | deep groove ball bearings |
| Parameter value | NTN |
| Unit | PCS |
| Unit weight of each item | 30G |
| Uniform Shipping Time | 14 |
| Parameter items | 6002LLU |
| TITLE | 6002 |
Understanding the Different Types of Bearings
When you are looking for a bearing, you have many options to choose from. This article will explain the various types, functions, and working principles of different types of bearings. Once you understand the basic components, you can make an informed decision about which one to buy. Here’s an overview of some of the most common types. Learn more about each type below! Read on to learn about the differences between these different types of bearings! Posted in Articles
Functions
Bearings serve as an integral part of a mechanical device. These devices help transfer torque from one part of a structure to another. These mechanisms increase the efficiency of a shaft by increasing its life. However, the functions of bearings depend on the application of the structure. Among other functions, bearings provide support to shafts. Anti-friction bearings come in two types: ball and roller bearings. These components have line and point contact, which is the most common type. Archimedes’s principle states that the force is equal to the weight of the fluid that is being displaced. Bearings can transfer lateral loads to a substructure.
A bearing has two primary functions. The first is to prevent direct metal-to-metal contact. A bearing prevents friction, heat generation, and wear and tear of components. A bearing also reduces energy consumption. Its other purpose is to guide and support a rotating body. In addition to these functions, bearings can also reduce wear and tear on a machine. As a result, they are among the most widely used machines in the world.
Seals are a major component of a bearing. They prevent foreign materials from entering and lubricating the moving parts. The design of seal lips determines their effectiveness. Fuel economy regulations and CO2 emissions regulations are pushing the demand for low-friction bearings. However, high-performance seals do not always provide high-performance. As a result, current estimations of the friction in bearings depend on trial and error methods.
Another important function of bearings is that they transfer the load of a rotating component to its housing. This load can be axial or radial. Bearings also limit movement to predefined directions. Some types of rolling element bearings have balls or cylinders inside. These bearings are less frictional than sliding ones, thus they allow parts to move freely during rotation. These parts can then be used for various applications. So, bearings are an integral part of machines.
Types
The most common type of bearing is a plain bearing. It uses surfaces in rubbing contact to transmit movement from one part to another. These bearings may be discrete or may consist of a hole in a metal sleeve or a planar surface bearing another part. Some plain bearings are flanged, while others are made of a sleeve with a flange at one end. These bearings often give acceptable accuracy and life, but they are expensive and cannot be used in large scale applications.
Radial bearings are used when there is a need for high-speed or corrosive parts. This type of bearing also serves as a support in an intermediate situation. Its two components are called the base and the cover. The base and cover are connected and are arranged parallel to the main axis. This type of bearing is used in steady-state and axial motion applications. The radial bearings are also used when the shafts are long.
Angular contact bearings are another type of bearing. These are easy to install and require minimal maintenance. Their races are displaced along the axis. They are also better at handling axial loads and transferring them to the housing. These types of bearings are commonly used in pumps, automobiles, and high-speed applications. If you are looking for an affordable, reliable bearing, look no further than the angular contact bearing.
Another type of bearing is a self-lubricating bushing. These are lightweight and wear-resistant. Unlike the other types of bearing, they do not require any lubrication or maintenance. In fact, some are completely maintenance-free. But if you’re worried about maintenance, this type of bearing may be a good choice. There are many benefits of using self-lubricating bushings. It is also a good option for applications where your machine is exposed to extreme temperatures.
Working principle
A bearing has two primary functions: support and load transfer. In engineering applications, the bearing tends to push the load in the direction of the shaft. A radial load pushes the bearing downward and a thrust load pushes it sideways. Both types of load transfer are important in a variety of applications. The working principle of each type is described below. Listed below are the main uses for each type of bearing.
A plain bearing uses a PTFE liner on the interface of two moving parts. The PTFE liner acts as a lubricant and may be filtered to alter its friction. The journal bearing uses the motion of the journal to force fluid into the gap between two moving parts. This results in a small amount of play in the bearing. This play is acceptable for most applications. A ball bearing may have a maximum play of 2 mm for a ten-millimeter shaft.
The primary function of a bearing is to assist in rotation and to reduce mechanical friction between the two objects. A bearing may be installed as a separate device or as an integral part of a machine. For more complex applications, bearings are very precise components requiring the highest standards of technology. For this reason, it is important to understand the working principle of bearings. The next time you need to lift or slide a heavy object, consider a bearing.
Ball bearings are a common type of ball bearing and can be found in industrial machinery and automobiles. Their unique structure helps them support less weight. This is because they are comprised of two rings – an inner race and an outer race. The balls themselves have a small area of contact and transfer axial loads in one direction. A cage surrounds the balls and prevents them from colliding. This makes ball bearings a popular choice for many applications.
Sealing system
A bearing’s seals are vital for the operation of rolling and rotating components. These systems enable rotation and linear movement while limiting friction and dispersing stress. Without the proper seals, these components could face catastrophic failure. In addition to protecting the bearing from external forces, seals help retain lubricant inside the system and prevent harmful particles from entering the gap. A seal’s lubrication helps prevent the onset of mechanical damage and prolongs the life of the bearing.
A bearing seal is made up of two parts: the inner sealing element and the outer sealing element. A passageway runs through the bearing assembly to the outer seal element. A hydraulic press or pneumatic jack is recommended for installing the seal. These tools are effective in reducing deformation and improving seal installation quality. When fitting the seal, ensure that the tool does not hit the seal directly. A proper adopter will distribute the load uniformly across the seal.
The seal’s efficiency depends on its gap. A four-inch shaft seal can flow 0.5 standard cubic feet per minute. A seal’s efficiency is highly dependent on the gap size. The gap size is a cube of the flow through the system. A smaller gap size allows high flow and pressure but less leakage. If both surfaces of the seal have similar pressures and flow rates, the seal is efficient. However, a small gap reduces the pressures and reduces wear.
Mechanical seals have numerous advantages, including their ability to protect against contaminants and splashing liquids. Labyrinth seals are the first line of defense against leaks. They operate without friction. Their high level of sealing efficiency helps ensure that the bearing remains operational for long. This type of seal is made from metal plates and is designed for a wide temperature range and misalignment. Its advantages include being easy to install and offering 100% sealing efficiency.
Maintenance
Bearing maintenance is critical to ensuring that your bearings keep operating at their peak performance. Proper maintenance will improve bearing life, reduce downtime and increase productivity while reducing costs. Here is an 8-point checklist to optimize your bearings and make them last longer. To optimize their performance, you should follow these steps regularly. In case a bearing does not last long, you should replace it as soon as possible. Listed below are some tips to ensure proper maintenance.
The first step is to determine how often your bearings require lubrication. Some manufacturers recommend that you lubricate them weekly, but this can do more harm than good. Instead, use ultrasound to measure the level of friction and trend its levels. This way, you will know exactly when to grease your bearings. It’s also important to check how often they should be inspected and calibrated. A professional can provide guidance on proper maintenance.
Next, inspect your bearings for cracks and scratches. You should never install a bearing that has been dropped or scratched. Even a small crack will affect the performance of the bearing and could lead to its premature failure. A proper alignment is essential for the bearing to function properly. Make sure you have the correct tools to perform this task. These tools can help you reduce manual work and promote safe bearing maintenance. You should also ensure that the shaft and housing are clean and undamaged.
Proper maintenance can prolong bearing service life. Proper lubrication, mounting, inspection, basic condition monitoring, and dismounting can extend their life. Proper maintenance extends their lifespan and improves plant productivity. While bearings are essential for machinery, you should make sure you follow the proper safety procedures every time you work with them. These tips will also help prevent accidents and maintain your machine’s efficiency. Once you’ve followed these guidelines, you can safely inspect your bearings and ensure that they’re operating at their optimum capacity.
editor by czh
