... roller bearing,Block pillow bearing, Auto bearing Retainer:copper cage,nylon retainer,steel retainer,bakelite retainer, etcMaterial:chrome steel ... stainless steel,bearing steel Suffixes:CA: Integral brass cage, double row symmetrical rollers,inner ring rideMA: Integral brass ... asymmetrical rollers, inner ring rideCC: Two piece steel cage, double row symmetrical rollers,inner ring rideCTN1: Double row ...