Model BMC153/BMCW172 Hp Duty BMC153-3563B-21.2 Part No. Ratio Output R.P.M.Motor R.P.M. Voltage 21.2 142 3000 24 VDC 1/4 Cont. 111 in-lbs. Torque Motor Dia Weight 3-3/8" 17 lbs. Man. Rel. Brake 15 in-lbs. BMC153-3563B-27.2 27.2 110 3000 24 VDC 1/4 Cont. 143 in-lbs. 3-3/8" 17 lbs. 15 in-lbs. . Part No. Ratio Output R.P.M.Motor R.P.M. Voltage BMCW172-4023C-20 20 150 3000 24 VDC Hp Duty 1/4 Cont. 105 in-lbs. Torque Motor Dia Weight 3-3/8" Man. Rel. Brake 15.1 lbs. - Custom output shafts and ratios are available upon request. - Dimensions are for reference only, request certified prints for construction purposes. - Units are available in R.H. and L.H. configurations (L.H. is shown). 15 in-lbs.