Ratio Multiplier Nominal Ratio 5.167 Input RPM 1750 Nominal Output RPM 339 Input HP 10.07 Output HP 9.87 Output Torque 1836 Overhung Load 900 Motor Input Flange 180TC Output Flange 180TC Cast Iron Housing Input Bore 1.125 Input Keyway 1/4 in x 1/8 In. Output Keyway 1/4 in x 1/8 in x 1-25/32 In. Lubrication Factory Filled Mounting Any Position Double Lip Seals