512 Key Hub

These are the SAME as the always popular "500 Key Hub", but they are oversized.

The bore of this hub is 0.510-0.513 inches. (500 Key Hubs are smaller)

These are rejected parts that do not qualify as 500 Key Hubs, but may be of use to robot builders.

Material: 6061 aluminum
Bore: 0.510-0512 inch