3/4 Inch Bore 3.25 Inch OD V Belt Pulley One Groove Cast Iron Sheave For A 3L 4L Belts 3/16 X 3/32 Keyseat Statically Balanced Heavy Duty Mechanical Pulley For Smooth Power Transfer

Single 3/4 bore, 3.25 OD one-groove cast iron pulley
✔️ 3/4 in bore, 3.25 in OD, 1 groove, 3/16x3/32 keyseat for A/3L/4L belts

This heavy-duty cast iron V-belt pulley is designed for standard A, 3L, and 4L belts, delivering smooth power transfer in motors, compressors, and workshop machines. It is statically balanced and coated to resist rust for reliable performance in demanding environments.

✅ Outside diameter 3.25 inches; bore 3/4 inch; 1 groove
✅ Keyseat 3/16 x 3/32 inches; for standard shaft
✅ Cast iron, statically balanced; rust-resistant coating
✅ For V-Belt Section A, 3L, 4L belts; not for toothed non-slip belts
✅ Includes 2 mounting screws for secure assembly

💡 What is a V belt pulley used for in a power transmission system?

Power transmission relies on pulleys to transfer rotation from the drive motor to the driven shaft via a belt drive. Handy in compressors, motors, and saws.

- Efficient torque transfer with proper groove fit reduces slip

- Secure mounting on 3/4 in shafts with standard keyseats

- Suitable for A, 3L, 4L belt types in common machines