... , 450R.P.M, 600R.P.M, 900R.P.M.4) Reduction ratio: 1:6, 1:10, 1:20, 1:30, 1 ... , 1:360,1:540, 1:810, 1:1620, 1:24305) Motor dimensions: 32 (dia.) x 30 (L) mm6) Gearbox dimensions: 37 ... machine and towel disposal high torque low rpm dc gear motor