Cast Iron Dual V Belt Sheave Pulley with 1 Inch Bore 4.5 Inch Outside Diameter 5L Belt Size Dual Grooves for B Section V Belts Through Bore 1 Inch Heavy Duty Pulley With 2 Grooves Model 2BK451

Single 1-inch cast-iron dual-groove pulley for 5L/B belts
✔️ 4.5 in OD (114.3 mm), ID 1 in (25.4 mm), bore 1.156 in, two grooves

This 1-inch bore, 4.5-inch outer diameter, double-groove cast iron pulley is designed for V-belt drives using 5L and B belts. It fits both inch and metric shafts and is commonly used on conveyors, milling machines, and DIY projects.

✅ Two grooves for 5L, B, BX belts
✅ Outside diameter 4.5 in (114.3 mm); bore 1 in (25.4 mm); bore length 1.156 in (29.4 mm)
✅ Cast iron construction with static balance for smooth operation
✅ Keyway not included; belt seating remains smooth

💡 What is a cast iron pulley used for in belt drive systems?

Pulleys like this guide belts and transfer power in a wide range of equipment.

- handy for transmitting power in belt drives across conveyors, machines, and DIY projects - durable with precise alignment for smooth belt operation - compatible with common V-belt sizes such as 5L and B BX