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Shipping from our Sydney location.
This is the "500EX Key Hub". It is a slightly different version of the 500 Key Hub. It is manufactured differently, as it is extruded. Also, there is a 1.124 in. diameter boss on each side of the hub flange, providing a location for 1.125 in. bore flat sprockets. Are you having a hard time keeping your sprocket concentric with your hub? This hub is the trick.
The bore is a 1/2 in. hole with two 1/8 in. keyways. Only one keyway is needed to drive most wheels, so the second one is extra.
Also, the keyways are consistently aligned with the mounting holes.
- Bolt Pattern: 0.204 in. diameter holes
- Bore: 0.502-0.508 in. diameter bore
- Material: 6063 Aluminum
- Outside Diameter: 2.25 in.
- Weight: 0.3 lbs
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Returns are not accepted for this product.