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 Single and Double Reduction, 15:1 Gear Ratio, 30 HP, Solid Shaft Input, Twin Tapered Bushed Bore Output, 1-5/8 in Dia x 6 in L Input, 3-3/16 in Output, 1791 RPM Input Maximum Speed, Oil Lubrication, Shaft Mount, Cast Iron, Gray, 19.35 in L x 10.33 in W x 23.81 in H