Browning D50B40 Sprocket

Browning D50B40 is a No. 50, 5/8-inch pitch, double-strand chain sprocket with 40 teeth, designed for use with No. 50 (5/8") roller chains. Cast in steel for durability and load capacity, it’s intended for high-cycle industrial drives on conveyors, packaging lines, and other machine applications where a compact, medium-to-high torque sprocket is required. The standard stock-bore version accepts a 3/4-inch shaft, while alternative solid-stock-bore configurations exist with a 1-3/16-inch bore to suit different shaft sizes. The overall outer diameter is about 8.316 inches, and the D50B40 is categorized as a Type B double-strand sprocket in Browning’s cataloging. This sprocket’s 40-tooth geometry supports reliable power transmission while maintaining a reasonable chain speed for general-purpose drive systems. When replacing or specifying parts, ensure the chain is No. 50, 5/8-inch pitch, and that the shaft bore matches the chosen bore variant to maintain proper alignment and torque transmission.