Product Description

Product Description


Angular contact ball bearings can bear both radial and axial loads. Can work at higher rotation speed. The larger the contact Angle, the higher the axial carrying capacity. The contact Angle is the Angle between the contact point connection of the ball and raceway and the vertical line of the bearing axis in the radial plane. High precision and high speed bearings usually take 15 degrees of contact Angle. Under axial force, the contact Angle will increase.


Single row angular contact ball bearing can only bear axial load in 1 direction, when bearing radial load, it will cause additional axial force. And only limit the axial displacement of the shaft or housing in 1 direction. Angular contact ball bearings have a contact Angle of 40 degrees, so they can withstand a large axial load.

Single row angular contact ball bearing are mainly used for machine tool spindle, high frequency motor, gas turbine, centrifuge, small automobile front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, welding machine, low noise type cooling tower, mechanical and electrical equipment, coating equipment, machine tool slot plate, arc welding machine


Double row angular contact ball bearings can bear large radial load, mainly radial and axial combined load and torque load, limiting the axial displacement of 2 sides of the shaft. The inclinability between the inner and outer rings of the double row angular contact ball bearing is limited in the parts mainly used to limit the two-way axial displacement of the shaft and the housing. The allowable inclinability depends on the internal clearance of the bearing, bearing size, internal design and the force and moment acting on the bearing, and the maximum allowable inclination Angle should ensure that no excessive additional stress will be generated in the bearing.

Double row angular contact ball bearing are mainly used for oil pump, Roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloid reducer, food packaging machinery, electric welding machine, electric soldering iron, square box, gravity spray gun, stripping machine, half shaft, inspection and analysis equipment, fine chemical machinery



1 The contact angle can be 15, 25, 30 or 40 degrees.
2 There are 4 different preload includ light, medium, heavy and special preload.
3 The bearing’s pairing way includ DB, DF, DT, PBC, QBC,TBT and universal paring.
4 Optional bearing’s speed: High speed or super high speed
5 The bearing’s highest working temperature is 120ºC-150ºC depends on its material.
6 The optional precision level include P5 P4 P4A and P2.
7 The bearing’s balls can be made of steel or ceramic.


The following specifications are just for reference, pls contact us if more details needed.


Bearing No. Shape Dimension(mm) (KN)
Basic rated load
Max Speed(rpm) Weight(Kg)
  d D B Cr Cor Grease oil  
Single row angular contact ball bearing
7200C 10 30 9 5.8 2.90 22000 28000 0.032
7200AC 10 30 9 5.5 2.80 22000 28000 0.032
7200B 10 30 9 5.3 2.70 19000 27000 0.03
7300C 10 35 11 9.8 4.69 18000 26000 0.053
7300AC 10 35 11 9.5 4.40 18000 26000 0.053
7201C 12 32 10 7.90 3.80 20000 25000 0.037
7201AC 12 32 10 7.6 3.60 20000 25000 0.037
7201B 12 32 10 6.90 3.20 18000 24000 0.036
7301C 12 37 12 11.8 5.60 17000 24000 0.060
7301AC 12 37 12 11.50 5.40 17000 24000 0.060
7301B 12 37 12 10.5 4.90 16000 22000 0.060
7202C 15 35 11 9.2 4.90 17000 22000 0.045
7202AC 15 35 11 8.90 4.80 17000 22000 0.045
7202B 15 35 11 7.9 4.20 16000 22000 0.045
7302C 15 42 13 13.2 6.70 15000 21000 0.084
7302AC 15 42 13 12.5 6.20 15000 21000 0.084
7302B 15 42 13 12.4 6.50 14000 19000 0.080
7203C 17 40 12 10.8 5.80 15000 20000 0.062
7203AC 17 40 12 10.4 5.60 15000 20000 0.062
7203B 17 40 12 9.9 5.50 14000 19000 0.065
7303C 17 47 14 15.7 8.20 13000 19000 0.110
7303AC 17 47 14 15.0 7.70 13000 19000 0.110
7303B 17 47 14 15.4 8.10 13000 17000 0.110
7204C 20 47 14 14.5 8.10 13000 18000 0.100
7204AC 20 47 14 14.0 7.80 13000 18000 0.100
7204B 20 47 14 13.4 7.60 12000 16000 0.110
7304C 20 52 15 18.4 9.80 12000 17000 0.150
7304AC 20 52 15 17.9 9.60 12000 17000 0.150
7304B 20 52 15 17.3 9.6000 11000 15000 0.140
7205C 25 52 15 16.5 10.00 11000 16000 0.120
7205AC 25 52 15 15.8 9.70 11000 16000 0.120
7205B 25 52 15 14.8 9.30 10000 14000 0.130
7305C 25 62 17 27.8 15.90 9500 14000 0.230
7305AC 25 62 17 27.0 15.90 9500 14000 0.230
7305B 25 62 17 24.3 14.10 9000 13000 0.230
7206C 30 62 16 23.0 14.70 9000 13000 0.190
7206AC 30 62 16 22.1 13.50 9000 13000 0.190
7206B 30 62 16 20.5 13.50 8500 12000 0.200

Our Advantages

1.Professional supplier: we are the biggest bearing supplier in China. Besides of our own factory, we also have a stable supply chain to provide all types of bearing.
2.Quality: we can supply bearing with world-class quality.
3.OEM or Non-Standard Bearing: OEM & Non-Standard bearing are available.
4.Professional teams:we have professional teams with technology, research and production.
5. Quick delivery: we can provide the shortest delivery time.


Packaging & Shipping

Packing & Shipping
Industrial packaging: Plastic tube (10pcs in 1 tube)+ carton + plywood pallets; plastic bag + kraft paper + carton + plywood pallets.

2.Commercial packing: 1pc/plastic bag+ single color box+ carton + plywood pallets.

3.According to customer’s requirements.


Company Profile


ZheJiang Dente International Trade Co.,Ltd is a comprehensive enterprise with factory and trading company.  we are focusing on import and export business based on our own bearing factory which is located in HangZhou City where is the largest bearing wholesale base in China.

ZheJiang Dente International Trade Co.,Ltd has taken in this line for more than 20 years. Besides of our own factory, we also cooperate with more than 500 bearing factories to meet market requirements. Therefore, we can supply high-quality bearing products with competitive price and the shortest delivery time if you choose us.

Our products include deep groove ball bearing, tapered roller bearing, pillow block bearing, self-aligning ball bearing, spherical roller bearing, cylindrical roller bearing, thrust ball bearing, non-standard bearing of automobiles. Simultaneously we also supply needle roller bearing, stainless steel bearing ,inch series bearing, non-standard bearing, imported bearing of global brand, wheel hub bearing. And we also supply some customized bearing.

Your satisfaction is our goal, expecting your inquiries.





Q:Are you a manufacturer?
A:Yes, we are a manufacturer, we have our own factory. 

Q:Can you supply samples?
A:Sure, samples can be provided free of charge, and the buyer pay the postage of the sample.

Q:The terms of shipment:
A:Firstly:We will delivery the bearings on time. The bearings will be shipped within 7 days after receiving the balance payment.

Q:How to place the order:
A:Send your inquiry →we will quote you→confirm the order→send you PI → make the in advance payment→we will produce the order→make the balance payment→delivery the goods after receiving the balance payment.

Q:The terms of payment:
A:30% deposit and 70% balance.

Q:The terms of price:
A: EXW factory
FOB HangZhou Port China
CIF any port of your orders

Q:If I want to mark my own brand on your bearing in small quantity does it work?
A: Yes, we can engrave your own brand on the bearing in small quantity.
In the future, when you have larger quantity, we can open the cover mold of your own brand name.

A: Once your bearing is standard size bearing, we accept the small quantity even in 1 set.

Q: If I don’t see the type of bearing I need, what should I do?
A: We have too many bearing series number. Sometimes, we are unable to put them all on Made-In-China. Just send the inquiry to us, and we’ll send you the details of bearing.

Welcome to contact me!

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


Order Sample

Full Size


Customized Request

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

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

ball bearing

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

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

  • Automotive Industry:

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

  • Aerospace Industry:

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

  • Industrial Machinery:

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

  • Medical Equipment:

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

  • Robotics and Automation:

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

  • Renewable Energy:

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

  • Marine and Shipbuilding:

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

  • Heavy Equipment and Construction:

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

  • Electronics and Consumer Appliances:

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

  • Oil and Gas Industry:

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

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

ball bearing

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

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

  • Effective Sealing:

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

  • Clean Environment:

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

  • Proper Handling:

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

  • Clean Tools and Equipment:

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

  • Contamination-Controlled Workstations:

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

  • Proper Lubrication:

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

  • Regular Inspections:

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

  • Training and Education:

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

  • Environmental Controls:

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

  • Regular Cleaning and Maintenance:

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

  • Selection of Suitable Bearings:

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

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

ball bearing

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

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

  • Design:

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

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

  • Friction and Efficiency:

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

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

  • Load Capacity:

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

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

  • Variability:

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

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

  • Speed Capability:

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

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

  • Applications:

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

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

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

China wholesaler 7200b signal Row Angular Contact Ball Bearing with ISO Certificate   bearing driverChina wholesaler 7200b signal Row Angular Contact Ball Bearing with ISO Certificate   bearing driver
editor by CX 2024-05-14

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