Cast Iron V Belt Pulley For 3L And 4L Belts, 3 Inch Outside Diameter, Bore One Half Inch, Through Bore Length 0.5 Inch, Single Groove Sheave, No Keyway, Durable Industrial Power Transmission Pulley

This is a single-pulley cast iron sheave used in belt-drive setups. It’s designed for 3L/4L V-belt systems on small motors, shop equipment, and light machinery.

✅ Outside diameter: 3 in (76.2 mm)
✅ Bore: 1/2 in (12.7 mm)
✅ Through bore length: 0.5 in (12.7 mm)
✅ Belt section size: 3L, 4L, A
✅ Material: Cast Iron
✅ Groove: One groove
✅ Keyway: None

💡 What is a V-belt pulley used for in small belt-drive systems? In general, V-belt pulleys transfer rotary power in belt-drive setups and help keep belts tracking and aligned. - Transfers rotational power in belt-drive systems - Supports proper belt tracking and pulley alignment - Works with common belt sizes like 3L and 4L on 1/2 in bore shafts