Half Inch Bore Cast Iron V Belt Pulley For 3L 4L And A B Sizes, 5 Inch Or 6 Inch Outside Diameter, 1.156 Inch Through Bore, Belt Section 3L 4L, No Keyway, Includes Hex Set Screw, Durable Cast Iron Construction For Long Life

Cast Iron V-Belt Pulley, 1/2 bore, 5 or 6 OD, size A/B 1-pc
✔️ 1/2 in bore; pulley for 3L belts; 5 in or 6 in OD, single

This cast iron pulley is a dedicated V-belt drive component with a 1/2 inch bore. It's designed for small machines, DIY projects, conveyors, and light industrial setups that use 3L or 4L belt sizes. It features a hex set screw to secure to a shaft and has no keyway for simple mounting.

✅ Outside diameter: 5" (127 mm) or 6" (152 mm) OD
✅ Bore: 1/2" (12.7 mm); Length through bore: 1.1563" (29.4 mm)
✅ Belt section size: 3L, 4L
✅ Material: Cast Iron; Hex set screw; No keyway
✅ Pack size: piece

💡 What is a V-belt pulley used for in small belt-drive systems? A handy, general-purpose drive component for transferring motion via a belt.

- Transmits rotational motion from a motor to driven components - Enables precise speed/torque transfer in compact setups - Cast iron body provides rigidity and wear resistance - Works with 1/2 in bore shafts and 3L/4L belts