Machine Parts-Namely, Chucks and Parts of Chucks for the Clamping of Machine Parts on Shafts; [ PUSH-ON GEARS, BRAKE DISKS, FLAT BELT DISKS, FASTENING AND COUPLING FLANGES, LEVERS, VEE BELT PULLEYS, SPROCKET WHEELS, CROSS HEADS, CAM PLATES, CLUTCHES, FLYWHEELS, FAN ROTORS, DRIVE ROLLS, CONVEYOR DRIVE DRUMS, ROPE SHEAVES, ROTORS, GEARS, TIE RODS, ]