Full Ceramic Bearing 6902 2rs ZrO2 Bearing

full ceramic bearing 6902 2rs ZrO2  

Ceramic Bearings

A Ceramic Bearing is a bearing with Ceramic Races and Ceramic Balls. Ceramic Bearings may be either Si3N4 (Silicon Nitride - Grey) or ZrO2 (Zirconia - White).

Benefits of the Ceramic Bearing

• High Temperature. Cages fitted to Ceramic Bearings are often made from PTFE which can withstand temperatures up to 260^oC.
• With no cage the Zirconia Bearing can be used in temperatures exceeding 1000^oC whereas Silicon Nitride can be used to around 700^oC.
• Silicon Nitride Bearings can run at loads and speeds approaching those of steel bearings. Zirconia is reserved for slower less loaded applications.
• Inert to water and most chemicals.
• Non magnetic
• Can be used without lubrication
• No heat build up due to friction

Zirconia (ZrO2) Balls                                                   

Characteristics:
1) Density 6 g/cm3
2) Good wearability
3) Max working temperature up to +400°C
4) High hardness Hv 1200
5) Nonmagnetic

6) Electrical isolating
7) Self-lubricating
8) Excellenct corrosion resistance
9) Not applicable for high speed bearings

full ceramic bearing 6902 2rs ZrO2 dimension:

*size: 12mm x 28mm x 7mm

*weight:0.0021kg

*Seals Type: open

*Presion Ratin:ABEC-1/3/5/7

*Material:Si3N4 or ZrO2

Characteristic of full ceramic bearing 6902 2rs ZrO2  :

*Smaller fiction coefficient, more freely rolling.

*Can be used at higher temperature up to 750°C *Never rust, and can roll with out lubrication. *More corrosion resistant than steel *No metal contamination.

*Non-magnetic *Electric isolation*Service:OEM service acceptable

FULL CERAMIC BEARINGS

Full Ceramic Bearings are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM’s, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics. Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconia Oxide (ZrO2), or Silicon Carbide (SiC.)

 Ceramic Balls:

We are special in making Silicone Nitride Balls (Si3N4 Balls,Zicronia Balls (ZrO2 Balls),Sic Ceramic Balls , Aluminum Oxside Valve (AI203) ceramic balls.

Compared with steel, ceramic materials are noted for their better or particular characters, such as wear-resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, and low specific gravity. These properties qualify them for replacing steel to make bearings serve in conditions of higher speed, harsh environment and less lube, and decrease wear, noise, vibration and maintenance time of bearings, and eventually increase performance, reliability and life of bearings.

full ceramic bearing 6902 2rs ZrO2 pictures: