Quote:
Originally Posted by MrForbes
I was thinking about how to drive the "wheelbarrow" wheels, which have a tube with bearings in the ends. My idea is to make a steel hub, with an ID the same as the OD of the tube, and a 6 hole bolt pattern to match common robot sprockets. Tack weld the hub to the tube.
But I haven't actually done this yet! and I have some equipment that other teams may not have access to, although I think you could do it with nothing more than a hole saw and a drill press and hack saw, if you needed to. Oh, and a MIG welder, although there are plenty of shops that could weld something like that pretty easily.
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If you're firing up a welder, why not just use the COTS built-in bearings on dead axles and weld the sprockets to the wheel, possibly with a short length of tubing to move the sprocket away from the bearing? (You will need steel sprockets, but no hub, so it shouldn't weigh any more.)