Beefy Heavy Duty 3/4 Inch Bore Single Groove Cast Iron V Belt Pulley With 4.75 Inch Outside Diameter, Motor Pulley For A AX B BX 4L 5L V-Belts, Precisely Machined, Static Balanced, Rust Resistant Finish, BK5034

Heavy Duty 3/4 in Bore, 4.75 in OD, Single Groove Pulley
✔️ 3/4 in bore (19 mm), 4.75 in OD (121 mm), 1 groove

This heavy-duty, single-groove cast iron pulley is designed for 3/4 inch shafts and is a staple in power transmission. It works with standard V-belt systems like AX, BX, 4L and 5L, making it a solid choice for motors, compressors, and woodworking tools such as table saws. The precision machining and rust-resistant finish ensure reliable operation in demanding environments.

✅ 4.75 in OD (120.6 mm) outside diameter
✅ 3/4 in bore (19.05 mm) with 3/16 x 3/32 keyseat
✅ 1 groove for AX, BX, 4L and 5L belt compatibility
✅ Cast iron construction, precisely machined, statically balanced
✅ Rust-resistant spray finish and includes 2 mounting screws
✅ Material meets ASTM G3000 standard

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

In simple terms, it's the part that transfers rotation from a motor to a driven load via a belt, helping control speed ratios and alignment.

• Transmits torque between motors and belts in machines and tools
• Helps maintain proper belt tracking to reduce wear
• Works with standard 3/4 in shafts and common belt series AX, BX, 4L, 5L