SUN AUTOMATION GROUP LIMITED was founded in 1986 and had been focusing on exporting high bearing ever since. Super precision bearings are used in demanding applications that require exceptional accuracy, high rigidity, low vibration, and extreme speed. They are engineered with extremely tight tolerances and advanced materials to ensure reliable performance under harsh conditions. We have a stock warehouse and provide a variety of stock bearings. For special and rare ones, we can distribute the goods to the agents in the country of origin of each brand.
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BSD 4072 CGA Super-precision Bearing
*BSD 4072 CGA Bearing . *Dimensions: 40x72x15 mm . *Weight: 0.254 kg. *If you wants to know more Add to Inquiry -
BSA 208 CGB Super-precision Bearing
*BSA 208 CGB Bearing . *Dimensions: 40x80x18 mm . *Weight: 0.419 kg. *If you wants to know more BSA Add to Inquiry -
BSA 308 CGA Super-precision Bearing
*BSA 308 CGA Bearing . *Dimensions: 40x90x23 mm . *Weight: 0.7 kg. *If you wants to know more BSA Add to Inquiry -
BSA 212 CGA Super-precision Bearing
*BSA 212 CGA Bearing . *Dimensions: 60x110x22 mm . *Weight: 0.891 kg. *If you wants to know more Add to Inquiry -
BSD 45100 CGB Super-precision Bearing
*BSD 45100 CGB Bearing . *Dimensions: 45x100x20 mm . *Weight: 0.791 kg. *If you wants to know more Add to Inquiry -
BSD 50100 CGB Super-precision Bearing
*BSD 50100 CGB Bearing . *Dimensions: 50x100x20 mm . *Weight: 0.71 kg. *If you wants to know more Add to Inquiry -
BSA 308 CGB Super-precision Bearing
*BSA 308 CGB Bearing . *Dimensions: 40x90x23 mm . *Weight: 0.7 kg. *If you wants to know more BSA Add to Inquiry -
BSD 4072 CGA-2RS1 Super-precision Bearing
*BSD 4072 CGA-2RS1 Bearing . *Dimensions: 40x72x15 mm . *Weight: 0.254 kg. *If you wants to know Add to Inquiry -
BSD 3572 CGA-2RS1 Super-precision Bearing
*BSD 3572 CGA-2RS1 Bearing . *Dimensions: 35x72x15 mm . *Weight: 0.287 kg. *If you wants to know Add to Inquiry -
BSD 4575 CGB Super-precision Bearing
*BSD 4575 CGB Bearing . *Dimensions: 45x75x15 mm . *Weight: 0.254 kg. *If you wants to know more Add to Inquiry -
BSA 210 CGB Super-precision Bearing
*BSA 210 CGB Bearing . *Dimensions: 50x90x20 mm . *Weight: 0.534 kg. *If you wants to know more BSA Add to Inquiry -
BSD 55100 CGA Super-precision Bearing
*BSD 55100 CGA Bearing . *Dimensions: 55x100x20 mm . *Weight: 0.65 kg. *If you wants to know more Add to Inquiry
Why Choose Us?
Rich Experience
SUN AUTOMATION GROUP LIMITED specializes in delivering professional bearing solutions, leveraging nearly 40 years of experience in bearing support and industrial services to serve its customers effectively.
Production Capacity
Our warehouse has one of the largest inventories. We have an annual output of 5 million sets of bearings. We guarantee direct shipments, timely delivery, and a single source of supply.
Production Market
Our products have been exported to North America, Europe, the Middle East, Brazil, South Africa, and Mexico and were well acknowledged by clients worldwide.
Professional Service
We have a 7*24 hours professional sales consultant team that can respond to your needs as quickly as possible and provide the fastest transportation method to bring you a high-quality and low-cost purchasing experience.

High precision: It can achieve extremely high running accuracy, especially suitable for applications with extremely high precision requirements.
Sealed design: The bearing adopts a sealed structure to prevent contaminants from entering and extend the service life.
High axial stiffness and load-bearing capacity: It is suitable for high speed and rapid acceleration conditions.
Specifications of Super Precision Bearing
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Item name |
BSA 210 CGB |
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Bearing type |
Angular Contact Thrust Ball Bearing |
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Bore diameter |
50 mm |
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Outside diameter |
90 mm |
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Width |
20 mm |
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Number of row |
1 |
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Contact angle |
62 ° |
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Basic dynamic load rating |
46.5 kN |
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Basic static load rating |
146 kN |
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Fatigue load limit |
5.4 kN |
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Attainable speed for grease lubrication |
6000 r/min |
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Attainable speed for oil-air lubrication |
7000 r/min |
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Mass approx. |
0.534kg |
Uses of Super Precision Bearing
In machine tool applications, they enable high-speed spindle operation that produces surface finishes measured in nanometers.
The medical device industry relies on them for precision surgical robots and imaging equipment where smooth, vibration-free rotation is essential.
Aerospace applications utilize super precision bearings in jet engine components, flight control systems, and satellite mechanisms that must operate flawlessly under extreme conditions.
• Ideally, bearings should be stored in a location with low humidity, i.e. less than 60% relative humidity.
• Bearings should never be stored on the ground, but should be stored on shelves or pallets at least 20 cm above the ground.
• Boxes of bearings should not be stacked too high or the rust preventative compound may be squeezed out of bearings on the bottom.


• Clean the mounting location to ensure there is no contamination and foreign matter.
• Check bearings and fittings for damage.
• Choose the appropriate mounting method according to the bearing type and size.
• Prepare necessary tools and equipment, such as heaters, press tools, etc.
• Appropriate heating or cooling preconditioning of bearings and/or journals.
• Be careful when mounting bearings to avoid shock and distortion.
• Complete bearing fixing and adjustment according to specification requirements.
• Inspect after mounting to confirm the bearing status and assembly quality.
• Apply an appropriate amount of lubricant to help the bearing operate normally.
• Record relevant installation data to prepare for maintenance.
Ordering Process
Send Us Inquiry → Receive Our Quotation → Negotiate Details → Confirm the Sample → Sign Contract/Deposit → Mass Production →cargo Ready → Balance/Delivery → Further Cooperation
Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Packaging Details: We use standard export packaging to ensure safe transportation.
Shipping method: Express, air, sea, railway. From China t0 every corner of the w0rld.

FAQ
We're well-known as one of the leading super precision bearing manufacturers and suppliers in China. If you're going to buy high quality super precision bearing with competitive price, welcome to get more information from our factory.
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