Product name: High performance ceramic dental bearings 

Model No: SR144
Specification: 3.175mm*6.350mm*2.780mm (widening type)

Seals type: open or ZZ
Rotating speed: 350,000-450,000rpm, under air-pressure of 200-250Kpa

Working life for about six months under the normal operation
Super low vibration,super low noise, Antirust, Corrosion resistant
High temperature resistant for disinfection
Usage: used for many brands of High-speed dental turbine handpieces, 
            such as KaVo, NSK, W&H, Bien Air, Midwest, Star, Sirona, Dabi Atlante, Lares, etc.
Rings: AISI 440C,stainless steel for inner ring and outer ring
Balls: Si3N4 Ceramic balls or AISI440C stainless steel balls(Optional)
Retainers(cages):Torlon PAI
Term of payment: T/T,western union
Port of shipment: Ningbo or Shanghai
Package:  tube packing or Vacuum packing,then cartons