This V-Groove Drive Pulley is recommended as an OEM Replacement only. It has a hub attached and the inside diameter is 1 1/8''. This V-Groove Drive Pulley has an integral keyway and will only work on shafts that require a keyway. There are no set screw holes. The heavy duty steel is designed to be more durable. This part is Painted Black to prevent rusting. Additional Features: Made of Steel Works with 5L/B belts Integral keyway Direct OEM Replacement for: John Deere: TCA20093