The Browning OK30X1/2 1025469 sheave pulley is a fixed-bore, single-groove cast-iron Browning pulley designed for a 1/2-inch shaft. It uses a 0.50-inch bore and secures to the shaft with an Allen-set screw (no keyway). The pulley’s outside diameter is about 3.15–3.16 inches, with a V-belt groove roughly 0.55 inches wide at the top and 0.20 inches at the bottom. This genuine Browning part is New Old Stock, finished in gray, and suitable for V-belt drive systems requiring a fixed-pitch, single-groove pulley.
