Bearing sleeve
Release date：2013-08-16 10:29 ???
Design characteristics：
With axial lubrication grooves which are leaded to two radial lubrication grooves on I.D.
Material：
Diercet harden steel：GCr15(52100) 42CrMo(4140) 45(1045)
Carburizing steel：20Cr(5120) 20CrMo(4118) 20CrNiMo(8620H)
Copper：ZCuZn24Al6Mn3Fe3 ZCuAl9Fe4Ni4Mn2
Spring steel：65Mn 50CrVA 60Si2MnA
