Tag Archives: 7204 bearing

China OEM 7204 7205 2RS Single Row Angular Contact Ball Bearing for Automobile Hub bearing bronze

Product Description

Angular contact ball bearings are CZPT to support radial load and axial load. As single row angular contact ball bearings can only support axial load in single direction, matched bearing mounting is often adopted to them as matched parts of bearings, preload for them is more convenient.
Retainers are made of brass, synthetic resins or others subject to individual bearing features and application conditions.


Angular contact ball bearing include:
1) Single row angular contact ball bearing
2) Matched angular contact ball bearing
3) Double row angular contact ball bearing
4) Four-point contact ball bearing


Angular contact ball bearings features :
1) Load capacities are higher than deep groove ball bearings of same dimensions;
2) Used for bearing radial-axial combined loads or pure thrust loads;
3) Low operating friction and high limiting speed.


Angular contact ball bearing


GCr15/stainless steel/carbon steel/Plastic/Ceramic

Bore size

35 mm

Outer diameter

72 mm


30.2 mm

Seal type

Open RS Z 2RS ZZ


Stamping steel/Brass/Nylon/Ceramic




Automobile, tractor, machine tool, electrical machine, 

water pump, agriculture machine, textile machine, etc.


Original brand Plastic bag+Original brand Paper box+Original brand 

Carton box+Wooden pallet;

Customer’s special requests are acceptable.


OEM service, Customization service, Customers’ Logo service;

Complete process for the production and quality assurance ensures our products can meet your 

requirement. We are committed to be responsible for each set of bearing and industrial products 

sold to our clients. Relying on strong resource network, we can supply any bearing with competitive 

price to meet each customer’ demand and guarantee each customer’s benefit.

Company Profile


In order to meet the needs of the masses of customers and improve the market competitiveness of our company,
we can provide OEM service according to our customers′ Needs. We have gained ISO9001 certificate, CE certificate,
GOST certificate and SGS certificate. Our target is to carry out the strategic investment along with the development
of market and need of new products. With our strategic, excellent products, top technology and outstanding service,
we sincerely expect cooperation with more customers and friends for a better future. Our main products include
spherical roller bearing, deep groove ball bearings, cylindrical roller bearings, spherical roller bearings, needle roller
bearings, ball bearing units, water pump bearings, automobile bearing, linear motion bearing, oil-less bearings,
bush and self-lubricating bearings, and non-standard bearings. Also, we supply bearings to our domestic peeling
machine factory and the machine exported to India, Malaysia and Russia, no any complaint from customer until now.

“zero defect, zero complaints” as the quality objective.


Q: Are you trading company or manufacturer ?

A: We are a trading company specializing in exporting bearings.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the 

goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge

Q.You provide free consultation service?

Yes, before, during and after order, anytime.

/* 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

Product Name: Angular Contact Ball Bearing
Characteristic: High Precision
Advantage: Large Bearing Capacity
Holder: Copper and Iron Retainers
Quality: High Quality
Rolling Body: Roller Bearings
US$ 5/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

ball bearing

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

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

  • Automotive Industry:

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

  • Aerospace Industry:

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

  • Industrial Machinery:

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

  • Medical Equipment:

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

  • Robotics and Automation:

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

  • Renewable Energy:

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

  • Marine and Shipbuilding:

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

  • Heavy Equipment and Construction:

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

  • Electronics and Consumer Appliances:

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

  • Oil and Gas Industry:

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

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

ball bearing

Are there any Industry Standards or Certifications that Ball Bearings should Meet?

Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:

  • ISO Standards:

The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.

  • ABEC (Annular Bearing Engineering Committee) Ratings:

ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.

  • DIN Standards:

The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.

  • JIS (Japanese Industrial Standards):

JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.

  • ASTM (American Society for Testing and Materials) Standards:

ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.

  • CE Marking:

CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.

  • Industry-Specific Standards:

Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.

  • Quality Management Systems:

Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.

When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

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 OEM 7204 7205 2RS Single Row Angular Contact Ball Bearing for Automobile Hub   bearing bronzeChina OEM 7204 7205 2RS Single Row Angular Contact Ball Bearing for Automobile Hub   bearing bronze
editor by CX 2024-05-17

China wholesaler Single Row Angular Contact Ball Bearing B Series Contact Angle 40 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 B Bm with Great quality

Product Description



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
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
Tolerances PN(P0) Bearings in standard tolerance
P6 Tighter tolerance than standard bearings
P5 Tolerance tighter than P6
P4 Tolerance tighter than P5
P2 Tolerance tighter than P4
Contact Angle C Contact angle 15˚.
AC Contact angle 25˚.
CA Contact angle 20˚.
E Contact angle 35˚.
B Contact angle 40˚.
Bearing Sets DB Two bearings: back-to-back.
DF Two bearings: face-to-face.
DT Two bearings: in tandem.
TBT Three bearings: tandem and back-to-back.
TFT Three bearings: tandem and face-to-face.
QFC Four bearings: tandem and face-to-face.
DB Two bearings: back-to-back.
DF Two bearings: face-to-face.


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
Outside Diameter
Grease Lubrication Oil Lubrication Dynamic Load
Static Load
7200C 10 30 9 18000 26000 5.81 2.93 0.032
7200AC 10 30 9 18000 26000 5.5 2.85 0.032
7200B 10 30 9 16000 25000 5.3 2.7 0.032
7201C 12 32 10 17000 24000 7.3 3.4 0.039
7201AC 12 32 10 17000 24000 7.09 3.3 0.039
7201B 12 32 10 15000 23000 6.9 3.2 0.039
7202C 15 35 11 16000 22000 8.6 4.5 0.048
7202AC 15 35 11 16000 22000 8.3 4.3 0.048
7202B 15 35 11 15000 21000 7.9 4.2 0.048
7203C 17 40 12 15000 20000 10.8 6.1 0.069
7203AC 17 40 12 15000 20000 10.5 5.6 0.069
7203B 17 40 12 14000 19000 9.9 5.5 0.069
7204C 20 47 14 13000 18000 15.5 8.9 0.110
7204AC 20 47 14 13000 18000 15 8.5 0.110
7204B 20 47 14 12000 16000 13.4 7.6 0.110
7205C 25 52 15 11000 16000 16.5 10 0.130
7205AC 25 52 15 11000 16000 15.8 9.7 0.130
7205B 25 52 15 10000 14000 14.8 9.3 0.130
7206C 30 62 16 9000 13000 23 14.7 0.217
7206AC 30 62 16 9000 13000 22.1 13.5 0.217
7206B 30 62 16 8500 12000 20.5 13.5 0.217
7207C 35 72 17 8000 11000 30.3 20 0.313
7207AC 35 72 17 8000 11000 29.2 18 0.313
7207B 35 72 17 7500 10000 28.3 14.8 0.313
7208C 40 80 18 7500 10000 38.4 26.3 0.402
7208AC 40 80 18 7500 10000 36.8 25.4 0.402
7208B 40 80 18 6700 9000 34.5 23.8 0.402
7209C 45 85 19 6700 9000 40.4 29.3 0.460
7209AC 45 85 19 6700 9000 38.6 28.1 0.460
7209B 45 85 19 6300 8500 34 24.6 0.460
7210C 50 90 20 6300 8500 42.8 31.3 0.510
7210AC 50 90 20 6300 8500 40.8 30.1 0.510
7210B 50 90 20 5600 8000 40.4 25.6 0.510
7211C 55 100 21 5600 7000 53.2 39.9 0.680
7211AC 55 100 21 5600 7000 50.8 38.2 0.680
7211B 55 100 21 5300 7000 46.3 36 0.680
7212C 60 110 22 5300 7000 61 48.2 1.571
7212AC 60 110 22 5300 7000 58.1 46 1.571
7212B 60 110 22 4800 6300 56.1 44.3 1.571
7213C 65 120 23 4800 6300 69.8 54.4 1.090
7213AC 65 120 23 4800 6300 66.6 52.1 1.090
7213B 65 120 23 4300 6000 65.7 50.2 1.090
7214C 70 125 24 4500 5800 72.8 59.7 1.180
7214AC 70 125 24 4500 5800 69.4 57 1.180
7214B 70 125 24 4000 5600 70.4 56.3 1.180
7215C 75 130 25 4300 5600 79.2 65.6 1.320
7215AC 75 130 25 4300 5600 75.3 62.8 1.320
7215B 75 130 25 3800 5300 68.6 58.2 1.320
7216C 80 140 26 4000 5300 92.5 66.2 1.570
7216AC 80 140 26 4000 5300 91.3 65.1 1.570
7216B 80 140 26 4000 5300 78.7 65.7 1.570
7217C 85 150 28 3800 5000 99.7 84.6 2.571
7217AC 85 150 28 3800 5000 94.9 80.8 2.571
7217B 85 150 28 3600 4800 83.2 74.1 2.571
7218C 90 160 30 3600 4800 128 111.7 2.470
7218AC 90 160 30 3600 4800 122 106.5 2.470
7218B 90 160 30 3200 4300 107.6 92.4 2.470
7219C 95 170 32 3400 4500 134.6 112.2 3.571
7219AC 95 170 32 3400 4500 128.4 107.8 3.571
7219B 95 170 32 3000 4000 121.4 106.7 3.571
7220C 100 180 34 3200 4300 148 125 3.620
7220AC 100 180 34 3200 4300 142 120.6 3.620
7220B 100 180 34 2800 3800 140 102.5 3.620
7221C 105 190 36 3000 4000 166.6 138.6 4.290
7221AC 105 190 36 3000 4000 159 135.1 4.290
7221B 105 190 36 2800 3800 143.3 128.5 4.290
7222C 110 200 38 2800 3800 184.7 154.8 5.030
7222AC 110 200 38 2800 3800 176.3 151.2 5.030
7222B 110 200 38 2400 3400 153.8 144.3 5.030
7224C 120 215 40 2400 3400 203.1 178.4 7.080
7224AC 120 215 40 2400 3400 193.6 170.9 7.080
7224B 120 215 40 2200 3200 165.4 161.4 7.080
7226C 130 230 40 2000 3000 206.6 209.2 8.100
7226AC 130 230 40 2000 3000 196.4 200.1 8.100
7226B 130 230 40 1800 2800 170.8 174.2 8.100
7228C 140 250 42 2000 2800 227.2 238.3 9.950
7228AC 140 250 42 2000 2800 216.9 227.4 9.950
7228B 140 250 42 1800 2600 212.2 197.3 9.950
7232AC 160 290 48 1700 2400 250 288 15.49
7234AC 170 310 52 1600 2200 281 341 19.69
7236AC 180 320 52 2200 2700 293 362 20.26
7238AC 190 340 55 2000 2500 303 390 24.31
7240AC 200 360 58 1300 1800 343 449 28.82
7244AC 220 400 65 1100 1600 358 482 33.60
7248AC 240 440 72 1500 1800 403 595 51.8


With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.



With several heat treatment lines and a workshop of copper cage making, we have the following advantages over other suppliers:

— We can flexibly adjust our production schedule, which is very advantageous in times of capacity constraints;
— We can control the process more strictly to ensure the quality of our products;
— And this also brings some advantages in terms of product cost. 


  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand
  · Valued at CNY 30-50 million
  · Available for fast 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.


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

2, Outer package
    Corrugated carton + Wooden pallet 


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. 

For DGBB or Insert bearings, our minimum order quantity is 1 pallet, regardless of whether the order is for 1 model or several. But, for angular contact bearings, the MOQ is ONE piece.

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.

Contact Angle: 40
Aligning: Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
US$ 1/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

ball bearing

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

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

  • Vibration:

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

  • Bearing Type and Design:

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

  • Lubrication:

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

  • Bearing Clearance and Preload:

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

  • Material and Manufacturing Quality:

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

  • Surface Finish:

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

  • Sealing and Shielding:

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

  • Operating Conditions:

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

  • Wear and Deterioration:

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

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

ball bearing

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

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

  • Effective Sealing:

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

  • Clean Environment:

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

  • Proper Handling:

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

  • Clean Tools and Equipment:

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

  • Contamination-Controlled Workstations:

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

  • Proper Lubrication:

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

  • Regular Inspections:

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

  • Training and Education:

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

  • Environmental Controls:

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

  • Regular Cleaning and Maintenance:

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

  • Selection of Suitable Bearings:

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

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

ball bearing

What 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 wholesaler Single Row Angular Contact Ball Bearing B Series Contact Angle 40 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 B Bm   with Great qualityChina wholesaler Single Row Angular Contact Ball Bearing B Series Contact Angle 40 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 B Bm   with Great quality
editor by CX 2023-11-07