China Dental bearings SFFR144TLGZWN SR133TiZN

China Dental bearings SFFR144TLGZWN SR133TiZN 

Stainless steel rings

Si3N4 ceramic balls 

Torlon cage

ABEC7

This type of bearing is a specialized bearing for dental dentists. 
The inner and outer rings are made of refined stainless steel (9Cr18Mo) materia, and the balls are made of non-metallic superhard silicon nitride ceramic (SiN4) material, with good wear resistance. 
The cage is made of Trolon material with high strength, low wear resistanceand self-lubricating properties. 
The bearing can reach a speed of 350000~450000rpm under an air pressure of 200~250kPa. 
Under normal operating conditions, the working life of bearings is more than 6 months.