6 in. Rubber Treaded Wheel w/ 1/2 in. Bearings

This is the 2008 FIRST Wheel, provided to FRC teams in the Kit of Parts, with two R8 ball bearings (1/2 in.bore) pressed into each wheel.


Usage:
Use #10-24x3/4 thread forming screws to attach sprockets or hubs to this wheel. Three (3) screws are sufficient for each wheel.

With Sprocket:
If you wish to drive this wheel with a sprocket, then the sprocket needs to be attached to the side of the wheel, and one ball bearing needs to be pressed into the wheel (on one side). The ball bearing must have a 1.125 in. od. For a 1/2 in. id, use am-0030. For a 3/8 in. id, use am-0573. Use #10-24x3/4 thread forming screws
With Bearings:
To press beaings into this wheel (for a free spinning wheel or for use with a sprocket), two ball bearings need to be pressed into the wheel (one on each side). The ball bearing must have a 1.125 in. od. For a 1/2 in. id, use am-0030. For a 3/8 in. id, use am-0573.
Changes from 2007 FIRST Wheel
More material has been added to each of the spokes, adding significant structural support
More support for the bearing wall has been added
A harder durometer rubber makes up the treads, providing less traction compared to the 2007 wheel
Treads are a slightly darker color of gray