... lever:Z1,Z2 3.Stocks Seals Type: ZZ or Open or 2RS ... aligning bearing,Cylindrical roller bearing,Spherical roller bearing, Taper roller bearing,Needle roller bearing,Block pillow ... row asymmetrical rollers, inner ring rideCC: Two piece steel cage, double row symmetrical rollers,inner ring rideCTN1: Double row ... : With lubrication groove in outer ring,with three oil holesC2/C3/C4: Internal clearance ...