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Xi'an Weinuo Machinery And Equipment Co.,Ltd

SFR Dental Bearing

SFR Dental Bearing


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The bearing is specially used in dental handpiece. All bearing match the ISO technical condition, especially the bearing ring thickness will be strictly controlled, avoid too weak to endure heavy load.



a)  The inner ring and outer ring is use the Refining stainless steel material(9CR18Mo).

b)  The ball of bearing used the stainless steel  material(AISI440C/9Cr18Mo) or Non-metal Superhard ceramic material(Si3N4), with a good abrasive resistance.

c)  The cage of the bearing use the material of Trolon that with a feature of  a high strenth, Low friction and self-lubrication or 

80-120 Phenolic fabric bakelite material.

3.Limiting speeds

The rotate speed can reached at 350000 ~ 450000 rpm under  200 ~ 250 kpa air pressure.

4.Usage and assmble 

a)  It is best that the interference fit between bearing bore and turbine shaft is under 0.5um~1.5um. When putting burbine shaft into bearing bore,the pressure should be forced on the face of inner ring to avoide the damage of rollway and balls.

b)  After fitting the bearing into tubine shaft they should be clear and instilled special lubricant.(Ethanol must not be used ).

c)  After high steam sterilized the Dental High Speed Handpiece should be jetted some lubricant into the air inlet before used and  so that bearing could be used longer time.

d)  To keep operating stability,the proload spring stress of bearing should be controlled under 1.2±0.2N.

5. Delivery

Delivery is on time, HTH shanghai warehouse is well equipped for bearings testing and packing. Every shipment is under control.

6. Package

Single packages /individual packages is available under the request of clients.

7. Laser Marking.

If you need any assistance in finding the proper bearing, please get in touch us and a member of our team member will work for you to fulfil your requirements as quickly as possible. E mail :  tang@fycbearings.com

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Xi'an Weinuo Machinery And Equipment Co.,Ltd

Add: Room 1101, Block 9 Taihua Jinmao International Plaza, No.16 South of Fenghui Road,      High-tech Zone, Xi’an, Shannxi Province, China 

Tel: 86 29 88332871  88324190

Fax: 86 29 88338589

E mail: tang@fycbearings.com

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