Dodge 117021 Taper-Lock Bushing

The Dodge 117021 Taper-Lock Bushing is a flangeless taper-lock shaft bushing designed to securely mount pulleys, sheaves, sprockets, couplings, and other power transmission components onto a 2-inch shaft, featuring an 8° taper and a finished keyed bore for precise concentric alignment and high torque transfer. This 3030-series bushing has a 2.000 in bore with a 1/2 × 1/4 in keyway, a 4.250 in outside diameter, and an overall length of 3.000 in, with a maximum hub diameter of 5.750 in and a 4.000 in bolt circle using two mounting bolts (5/8-11 × 1-1/4 in) and an installation torque of 800 in-lb. Constructed from cast iron (Class 30) and weighing about 7.68 lb, it provides flush mounting, a high holding power, and reduced shaft wobble thanks to its flangeless design and taper-lock engagement. Typical applications include conveyors, pumps, fans, compressors, gear drives, agricultural equipment, belt drives, and other rotating industrial equipment where secure, vibration-resistant mounting is essential. The Dodge 117021 is identified as the 3030 × 2 taper-lock bushing, with verified compatibility for 2" shafts and common replacements including Martin 3030 × 2 and other Dodge 117021 units. Manufacturer part number 117021, manufactured by Dodge (ABB/Baldor Dodge).