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Ceramic Ball Bearing (52)

Ceramic Bearing Ball (Si3N4)

FOB Price: Get Latest Price
Min.Order Quantity: 1 Piece/Pieces
Supply Ability: 2000000 Piece/Pieces per Month
Port: Shanghai
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Quick Details

Ceramic Ball
Brand Name:
Bore Size:
0 mm
Outside Diameter:
7.938 mm
Model Number:
Place of Origin:
Shanghai China (Mainland)
Black or gray
3.23 g/cm3
Max use temperature:
Main market:
Europe,America,East Asia
Min Size:
Max Size:
G5 Precision
Wear resistance, Chemical resistant

Packaging & Delivery

Packaging Detail: Box
Delivery Detail: 10~15days


1.High temperature resistant
2.Corrosion resistant
3.Longer lasting
4.ISO9001 certificate
5.Plenty of stock

Size Range: 0.4mm~140mm

Grade: G5~G60

Company Feature: Stable quality and High consistency


Shanghai Unite Technology Co.,Ltd has achieved ISO9001:2000 Certificate. Our ceramic bearing and ceramic ball products were recognized as Hi-Tech Project by Shanghai government respectively.


Compared with steel ball, Si3N4 ball has following advantages:

1. 59% lighter than steel ball, which means less centrifugal force and less wear on the groove during high speed and acceleration.

2. 44% larger elastic modulus, which means less deformation under load

3. Harder with Rockwell hardness as 78

4. Smaller friction coefficient

5. Only 1/4 coefficient of thermal expansion of steel, can endure sharp fluctuation of temperature

6. Superior surface finish can be achieved, Ra could be 4~6 nm

7. Can endure high temperature with high hardness and strength up to 1050°C

8. Never rust, and can roll without lubrication.

9. More corrosion resistant than steel.

10. Free of metal contamination.

11. Non-magnetic

12. Electric isolation

13. No adhesive-wear with metal

14. Contact angular is very large with molten and nearly no reaction

All above combination makes Si3N4 to be first choice for high-demand bearing ball material and valve ball



Si3N4 ball can be used in all bearings with special requirement: high speed bearing, high precision bearing; vacuum bearing; high/low temperature bearing, non-magnetic bearing, high precision ball screw; Si3N4 ball can also be used as valve ball and metering ball in chemical pump, high-temperature pump, metering pump. Si3N4 ball can also be used in linear slider for high temperature and corrosion resistance.


1. Black color as standard, gray color could be supplied upon customer requirement

2. Non-standard size and different gauge could be supplied


If you are interested in this product or just want to know more about ceramic products, never hesitate to contact us.

We are looking forward to developing business relationships with you.



Not exactly what you want? 1 request,multiple quotations Get Quotations Now >>
Shanghai Unite Technology Co., Ltd. was founded in 2000. Our company is young and great-hearted. We are dedicated to the precision manufacture of ceramic parts, providing high quality advanced ceramic products for customers all over the world. Our company is well managed and has achieved ISO9001 certificate.

Our company is located in Jiading District, the northwest of Shanghai and adjoined to Shanghai International Circuit. Therefore the traffic of our company is very convenient.

We have ... View detail

Basic Information

Product/Service (We Sell): Ceramic Ball,Silicon Nitride,Zirconia Ball,Ceramic Bearing,Guide Pin  
Brands: SUT  
Number of Employees: 101 - 200 People  

Trade & Market

Main Markets: South Asia
Central America
Eastern Europe
Southeast Asia
Eastern Asia
Southern Europe
Northern Europe
North America
Western Europe
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 21% - 30%  

Factory Information

Factory Size (Sq.meters): 10,000-30,000 square meters  
Factory Location: 3996 Baoan Road, Jiading District, Shanghai City. China  
Number of Production Lines: 3  
Number of R&D Staff: 5 - 10 People  
Management Certification: ISO9001  
Contract Manufacturing: OEM Service Offered   Buyer Label Offered  

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China (Mainland) | Manufacturer | Contact Details
Experience: Established 2000 , 10 years OEM

Communicate with Supplier:

Mr. Xiaolin Hong
Mr. Xiaolin Hong:
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