AK20-5/8" OD 2" Cast Iron ID 5/8" Shaft Pulley Sheave Single 1 Groove V Style A Belt 4L NewAK20 5 8" OD 2" Cast Iron ID 5 8" Shaft Pulley Sheave Single 1 Groove V Style A Belt 4L New AK2058 AK20 5 8" Bore Cast Iron Pulley Keyway for V belt size 3L, 4L, A B OD 2" ID 5 8" Outside diameter: 2" inch Length through bore: 1. 1563" inch Bore: 5 8" inch Belt section size: 3L, 4L ,5L Material : Cast Iron One pulley 2 Hex set screw 90 Keyway 3 16 X 3 32