Industrial D80B13F Idler Roller Chain Sprocket

Brewer Machine & Gear D80B13F is a B-style, double-strand idler roller chain sprocket with a 1.0 in bore and a precision needle bearing. It is designed for ANSI 80 chain and features 13 teeth, an outside diameter of 4.657 in, and a hub diameter of 1.5625 in for robust mounting on Brewer shafts. The sprocket uses a 1.0 in chain pitch and is manufactured from steel, finished in black oxide. This part is intended for Brewer Universal Drive Tensioner systems and other Brewer tensioner assemblies to maintain tension and alignment on double-strand 80-chain drives. With a 1.0 in compatible shaft diameter, it provides reliable support in industrial chain drives where smooth engagement and durability are critical. The D80B13F is also cataloged as 80B13F in many listings, reflecting its role within Brewer’s idler sprocket lineup for tensioners and drive assemblies.