Producing types: Single row cylindrical roller bearings Double row cylindrical roller bearings Four row cylindrical roller bearings And all kinds of inch sizes roller bearings Use: Used in heavy electric motor, machine tool main shaft, axletree axle box, Diesel engine crank shaft and the gear box, automobile, tractor, etc. Brand: SKF INA TIMKEN NSK NTN IKO KOYO NACHI LYC URB UBC.