Heavy Duty Cast Iron 4.5 Inch Single Groove Belt Pulley 5L B Section With Seven Eighths Inch Bushing For Seven Eighths Inch Shafts Ideal For Industrial Drives OEM Replacement DIY Machinery Motors And Belt System Upgrades

Cast Iron 4.5-Inch Single-Groove Pulley with 7/8in Bushing
✔️ 4.5 in OD pulley, 7/8 in bushing included for 7/8 in shafts

This heavy-duty cast iron belt pulley is designed for industrial drive systems, OEM replacements, and DIY machinery upgrades. It uses a 7/8" bushing to mount on 7/8" shafts, and it accepts B Section (5L) belts that are 1/2" wide. The gray finish helps it blend in with equipment, while the two-piece construction ensures a secure attachment for reliable torque transfer.

✅ Outside diameter: 4.5 inches
✅ Belt width compatibility: 1/2 inch (5L/B section)
✅ Bushing: 7/8 inch steel included
✅ Material & finish: gray cast iron with secure 2-piece design

💡 What is a heavy-duty belt pulley used for in industrial drive systems?

This handy pulley is used to drive belts in motors, conveyors, and OEM upgrades, delivering secure belt engagement and reliable torque transfer.

- secure belt drive alignment for rugged industrial motors - compatible with 5L/B section belts, 1/2" wide - built-in 7/8" bushing for easy shaft mounting - ideal for OEM replacements and DIY belt system upgrades✝️