With 60 years of proven dependability and more than 1.8 million units in service throughout the world, Dodge® Torque-Arm™ speed reducers are the standard of the industry and the benchmark to which others are compared. The Torque-Arm™ II is a shaft mount helical gear reducer that mounts directly to the driven shaft with a number of accessories available to produce versatility, cost savings and long life. A long list of standard features makes this reducer suitable for a wide range of environments right off the shelf. Dodge® Torque-Arm™ II Speed Reducer, Heavy Duty Double Reduction, 25:1 Gear Ratio, 75 HP, Solid Shaft Input, Twin Tapered Bushed Bore Output, 2.4375 in Dia x 7.19 in L Input, 4-7/16 in Output, 1997 RPM Input Maximum Speed, Oil Lubrication, Shaft Mount, Cast Iron, Gray, 23.54 in L x 12.81 in W x 30.95 in H