Heavy Duty 20B Roller Chain Sprocket With Reboreable Type B Hub For Single Strand Chains, 31.75mm Pitch, 48 Teeth, 40mm Bore, 503.46mm OD, 152mm Hub, 18.59mm Width

Heavy-Duty 20B Sprocket with Type B Hub for 20B-1 Chain
✔️ 31.75 mm pitch, 48 teeth, 40 mm bore, 503.46 mm OD

This heavy-duty sprocket is built for single-strand 20B-1 chains and features a reboreable Type B hub for secure shaft mounting. It’s ideal for conveyors, packaging lines, and industrial machinery where reliable chain engagement is required.

✅ 20B-1 chain compatibility, 31.75 mm pitch (1.25 in), 48 teeth
✅ 40 mm bore (1.57 in), OD 503.46 mm (19.84 in), hub 152 mm (5.98 in), width 18.59 mm (0.732 in)
✅ Type B hub provides stable attachment with full-depth keyways and setscrews
✅ High-carbon steel for strength and durability, ANSI/ISO/DIN compliant

💡 What is a heavy-duty chain sprocket used for in real-world setups? This handy guide covers the basics and best practices.

- Power transmission in conveyors, farming equipment, and packaging lines - Uses a 31.75 mm pitch 20B-1 chain for reliable engagement - Type B hub offers stable shaft mounting and compatibility with standard setscrews