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Unread 14-05-2011, 21:26
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Re: Mecanum Wheels

Quote:
Originally Posted by Jeff 801 View Post
the coefficient of friction between the neoprene and the hard fiber washer is greater than that of the hard fiber washer and the aluminium hub so there is just about no rotation of the washer relative to the roller. I hope that make sense.
Yeah, I realized that after I hit the "send" button.

Quote:
If I was to remake them i would have done it more like how 357 did it this past year with a nylon core and a molded urethane rubber outside.
The axial loading forces on the rollers can be quite high, so anything you can do to reduce end-loading friction would be beneficial. Perhaps three or four very thin Teflon washers, for example. Is the bolt nickel plated?

Minimizing axial free-play also minimizes losses.

How did you determine the roller profile?


 


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