Industrial R1X1-58 Split-Taper Bushing

R1X1-5/8 Split-Taper Bushing, Browning R1 series, is a steel, double-split, flange-style taper bushing for mounting drive components such as sprockets, pulleys, and sheaves to shafts. It provides a finished 1-5/8 in bore with a built-in 3/8 in x 3/16 in keyway and an accompanying keyseat to secure the hub on the shaft. The bushing uses a three-bolt pattern on a 4-5/8 in bolt circle, with an outer diameter of 5-3/8 in, bolt diameter 3/8 in, and a through-bore length of 2-7/8 in. Made for the R1 series, this unit is rated for a screw torque of 348 in-lbs, delivering the clamping force needed for reliable torque transmission. Overall, it is designed for industrial power-transmission assemblies where quick shaft-size changes are beneficial and provides a robust method to fasten drive components onto standard shafts.