VXB
2AK25 1" Bore 2-Groove Cast iron Pulley - OD 2.5" ID 1" for V-belts 4L, A
2AK25 Cast Iron Pulley 1 inch Bore with Dual Grooves
✔️ Solid 2.5 inch OD V-belt pulley for A/4L belts and 1 inch shafts
This single 2AK25 cast iron pulley is a handy dual-groove design built for A-section and 4L V-belts. It fits a 1 inch shaft, includes two hex set screws, and comes with a 1/4 x 1/8 keyway for secure mounting on small machinery, compressors, shop tools, and DIY belt-drive builds.
✅ Outside diameter 2.5 inch
✅ Bore size 1 inch
✅ Belt section 4L and A
✅ Two grooves for dual-belt setups
✅ Cast iron construction
✅ Includes 2 hex set screws
✅ Keyway size 1/4 x 1/8 inch
✅ Pack size: 1 pulley
Dimensions Table (inch)
| Feature | Value |
|---|---|
| Outside Diameter | 2.5" |
| Bore | 1" |
| Grooves | 2 |
| Belt Section | A / 4L |
| Keyway | 1/4" x 1/8" |
| Set Screws | 2 pcs |
💡 Why use a dual-groove V-belt pulley in small mechanical drive systems?
Two grooves allow more grip and torque transfer while keeping belt slip low.
- Helps boost power delivery on compact machines
- Cast iron body stays stable under load
- Keyway and set screws keep the pulley locked in place
- Works well in belt-driven tools, compressors, and custom projects
A solid pick when you want steady belt traction and a tough pulley that keeps your drive system running smooth.