Product Description

R**4 | R**4.Z | R**4.Z.Q | R**4.Z.WQ | R**4.Z.W | R**4.Z.WX3 | R**4.ZZ.WX3 | *******4.Z.W | ***** | *****；R**4 .C| *****, Z | *****.Z.Q | *****.Z.WQ | *****.Z.W | *****.Z.WX3 | *****.ZZ.WX3 | ********** ***** **0, **0 rpm operation speed: 2.Dedicated P4/ABEC 7 bearing precision: 3.Stainless Steel (9Gr*8) and Super-hard Ceramic (Si3N4) materials: 4.High-end textolite-based phenolic cage: