Product name: high speed dental equipment bearing
Model No: SR144TL 
Specification: 3.175mm*6.350mm*2.380mm
Rotating speed: 350,000-420,000RPM
Usage: used for high speed dental handpiece
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:  glass tube  or  capsule packing