... FAG , NTN,KOYO, THK,IKO,NACHImain product:shperical roller bearing,cylindrical roller bearing, taper roller bearing,needle bearing,angular contact ball bearing,thrust ... our own products: 1)assembly 2)windage test 3)cleaning 4)rotary test 5)greasing and gland 6) noise ... mmhttp://www.dlzyb.comSealed double row .full complement cylindrical roller bearing: d 20-----240mm The following is the competitive ...