500EX Key Hub (am-0976)

Source(s): AndyMark, Inc.

Source(s) Part Number: ###am-0976

FIRST Choice #: fc-am-0976

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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.

More Information:

Product Specifications:

  • Bolt Pattern: 0.204" diameter holes, evenly spaced on a 1.875" diameter bolt circle
  • Bore: 0.502-508" diameter bore, with 1/8" keyway (2)
  • Material: 6063 Aluminum
  • Outside Diameter: 2.25"
  • Weight: 0.1 lbs