2517 Taper Lock Bushing X 1-3/8" Bore UCFX00 Medium-Duty Four Bolt Flange Bearings This 120BS21 sprocket features a

This 120BS21 sprocket features a 1" finished bore with a key-way and two set screws

our UEFT206 bearing has added features that improve the overall life and performance of the unit

UCST211 take-up bearings are designed for take-up frames

This chain is also factory pre-loaded

Pitch Diameter: 72

2517 Taper Lock Bushing X 1-3/8" Bore UCFX00 Medium-Duty Four Bolt Flange Bearings This 120BS21 sprocket features aThis 2517 taper lock bushing is a high quality, durable, and dependable product that has been precisely manufactured to out last and out perform the competition. 2517 taper lock bushings are used in a wide range of applications including; belt pulleys, sprockets, drum pulleys, drive pulleys, tail pulleys, sheaves, and gears, which are items that we also offer! Additionally this bushing features a 1 3 8" bore with a standard keyway, for more