Heavy Duty Roller Chain Sprocket Dual Strand 20B 31.75mm Pitch Type C Hub Reborable, 68 Teeth, 40mm Bore, 705.79mm OD, 191mm Hub, 54.64mm Width For Two Chain Systems

Single unit dual-chain Type C Sprocket for 20B-2, 68 Teeth
✔️ 1-piece two-chain unit; 68 teeth, 31.75 mm pitch, 40 mm bore

The heavy-duty roller chain sprocket is built for industrial power transmission with two parallel chains. It’s commonly used in conveyors, material handling, and heavy equipment where synchronized dual-chain drive is required.

✅ For use with 20B-2 chain (31.75 mm pitch / 1.25 in), ISO metric standard
✅ Dual-type C design for two chains with full-depth keyways and standard setscrews
✅ Bore range 20-40 mm; hub diameter 69-191 mm; face width 54.64 mm (2.15 in)
✅ Teeth options 10-114; pitch diameter 102.75-1152.26 mm (4.05-45.4 in)
✅ High-carbon steel construction for strength and durability in heavy-use environments
✅ Hub extension on both sides provides stability for large bores and long shaft contact
✅ ANSI/ISO compliant and designed for two-chain systems with standard keyseat and setscrews

💡 What is a heavy-duty dual-chain sprocket used for in power transmission? This handy part helps keep two chains in sync and properly engaged. - handy for conveyors, presses, and heavy machinery with two-chain layouts - improves load sharing and timing between chains - compatible with Type C hub, full-depth keyways, and standard setscrews