Browning 4TB86 Sheave Pulley

Browning 4TB86 TB Gripbelt four-groove sheave is a cast-iron V-belt pulley designed for A- and B-section belts, featuring a four-groove face with an 8.95-inch outside diameter that accepts Browning Q1 split-taper bushings for a quick, secure bore. The approved bore range runs from 3/4 inch to 2-11/16 inch and accommodates a 1/2-inch keyway, making it compatible with a wide variety of shafts and hubs. With pitch diameters of 8.4 inches for A-belts and 8.9 inches for B-belts, this sheave provides precise ratio control in power-transmission drives; its face width measures about 3.25 inches to support stable belt tracks and load distribution. Part of the Browning TB Gripbelt line, these four-groove, bushed sheaves are manufactured to ARPM standards for safe operation and are commonly used in industrial belt-drive systems where reliable belt load distribution and long belt life are required.