n order to minimize the stress of patients, dental hand piece is required to hold high level of ultra high speed rotation and the lowest vibration. ISC has developed

a dental ball bearing with ultra high speed rotation and lowest running torque in order to meet these requirements from the market.

Introduction
SF-1X is wall wrapped skf bearing ,nike air max 97; made of triple layer composites material which consists of a steel backing,a sintered porous bronze particles interlayer and

calendared with PTFE and Pb mixture as surface layer,It is of low friction cofeeicient,anti-wear,anti-corrosion and can be used without oil,or only a trace of oil os

needed.moreover,it is of low cost,low vibration and low noise,compact and light,sf-1Xis widely applied in various sliding articles of different kind of machines,Such

as textile machines,tobacoo machines,hydraulic vechicles,antomobiles,agriculture and forests machinese and soon.