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Ceramic Ball Bearing (21792) , Deep Groove Ball Bearing (82752) , Angular Contact Ball Bearing (2548)
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full ceramic ball bearing of silicon nitride material with great low price

FOB Reference Price:Get Latest Price
US $0.1 - 10 / Set | 10 Set/Sets (Min. Order)
Supply Ability:
10000000 Set/Sets per Year
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On-time shipment
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Quick Details

Ceramic Ball
Brand Name:
Bore Size:
25 mm
Outside Diameter:
62 mm
Model Number:
Place of Origin:
Beijing, China (Mainland)
Material of rings:
silicon nitride ceramic
Material of rollers:
silicon nitride ceramic
Material of cages:
Rotating speed:
very high
Application temperature:
very high
much light than full steel bearing/zirconia ceramic bearing
Oil-free Self-lubricating
Electrical insulation:

Packaging & Delivery

Packaging Details: standard exporting packing
at the customer request
Delivery Detail: 7-10 days

1.Picture of Full Ceramic Ball Bearing

2.Descriptions of Full Ceramic Ball Bearing

1.Manufacture  full silicon nitride ceramic bearing from 1995.

2.Excellent  and stable quality.

3.Plenty of stocks.


Ceramic ball especially silicon nitride ceramic ball have the following performance as low density, high strength, low friction coeffecient, electrical and magnetism resistance, wear resistance, well rigidity, lubrication and maintenance free when working, it's the best choice for rollers and rings for bearing wich are used in high speed, long accuracy and long life environments. So they are widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronics, metallurgy, electric power, textile, medical equipment and other fields.



The rings (the inside and outside) are made by silicon nitride ceramic;


The rollers are made silicon nitride ceramic too;


The retainers are made by PTFE, nylon 66, polyether acid sub-ammonia, stainless steel.
And we can produce deep groove ball bearing, full complement balls, self-aligning ball bearings, angular contact ball bearing, insert bearing.



 Silicon nitride Material Properties


Performance Comparison of Structural Ceramics and Ordinary Steel



3.Production Line of Full Ceramic Ball Bearing


4.Packaging of Full Ceramic Ball Bearing




We have been to a lot fairs and the lastest fair is 2015 HANNOVER MESSE Gemany.


6.Information of company

Founded in 1963, Beijing Sinoma Synthetic Crystals Co, LTD.Is a hi-tech state enterprise, belongs to the China National Materials Group Co., Ltd. An excellent technical team headed by the state-level experts has built up,which provides a reliable guarantee for the continuous and rapid technological development. 




Advanced ceramic Division (technical center of precision ceramic bearing) is mainly engaged in researching,manufacturing and developing advanced ceramic materials such as Si3N4, ZrO2, Al2O3 and so on.


Main Products:


1). Si3Nand ZrO2 ceramic balls and rollers.


2). Si3Nceramic bearing rings.


3). The whole series full ceramic bearings, hybrid bearings, sliding bearings and shaft sleeves made by Si3N4 and ZrOmaterials.


4). Industrial wear parts made by Si3Nand ZrO2 materials. According to customers application condition and drawings, varios precise and irregular ceramic parts can be designed and fabricated






7.Welcome to contact us

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China (Mainland) | Business Service (Transportation, finance, travel, Ads, etc)
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The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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