One And One Eighth Inch Bore 4 Inch Outside Diameter V Belt Pulley One Groove Web Sheave Carbon Steel Zinc Plated For A B 5L 4L Belts Motor Drive Built To Last 1020 Steel With Standard Keyseat And One Quarter By One Eighth Inch Screws

4-inch V-belt pulley with 1-1/8 bore, single groove
✔️ OD 4 in (101.6 mm), ID 1-1/8 in (28.6 mm), 2 screws, 1020 steel

This heavy-duty drive pulley is a 4-inch outside diameter, 1-1/8-inch bore, single-groove V-belt pulley designed for power transmission in motors, compressors, lawn equipment, snow blowers and other machinery. Made from durable 1020 steel and zinc plated to resist rust, it’s built to last in demanding environments.

✅ Outside diameter: 4 in (101.6 mm)
✅ Inside bore: 1-1/8 in (28.6 mm)
✅ Groove count: 1; compatible with A/B, 5L, 4L belts
✅ Keyseat size: 1/4 x 1/8 in (6.35 x 3.18 mm)
✅ Material: 1020 steel; zinc plated for corrosion resistance
✅ Includes: 2 screws and 1 wrench

💡 What is a common use for a 4-inch single-groove V-belt pulley in power transmission?

This handy drive pulley is used in compact setups where a reliable belt drive is needed. - ideal for small motors and compressors with standard belt sizes - provides solid traction and simple alignment in line-shaft systems - durable 1020 steel construction with rust protection