Raymond mill is mainly composed of Roller, Ring, Shovel, Shovel base, Bearing, Roller bushing, Spring for roller, Roller hanger, Reducer, Main shaft, Bevel gear & pinion, Classifier, Blower, Locking nut, Roller assembly, Snail shell, Motor, Elevator, Chain, Vibrating feeder, Crusher, etc. Important parts and their functions Auxiliary speed reducer