... -aligning roller bearing with High quality 1)ISO9000:2008 2)GCr15,GCr15SiMn,G20Cr2Ni4A 3)Top quality SKF21305CCSelf-aligning roller bearing with High quality1)The self ... the hole is tapered bore3)Shaker with a self-aligning roller bearings:high carrying capacity,impact resistance,resistance to ... in 1983, Valiant Bearing Co., Ltd mainly distributes good quality bearing such as: SKF FAG INA KOYO NSK NTN ...