This V-Groove Idler Pulley works both as an OEM replacement and as a general purpose pulley for power transmission such as compressors, industrial fans, lawn mowers, snowblowers, and electric motors. It does not come with a bore adapter installed, the inside diameter is equal to the bearing diameter of 3/4''. 35600075 features a heavy duty sealed radial single-row bearing.The thick steel construction is designed to be more durable. This part is Painted Black to prevent rusting. Additional Features: Made of Steel Works with 3L|4L/A|5L/B belts Seamweld Direct OEM Replacement for: John Deere: TCA17540