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Unread 15-06-2010, 16:11
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1557 alumni, 4639 mentor
AKA: adam spears
FRC #4639 (RoboSpartans)
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Join Date: Mar 2008
Rookie Year: 2007
Location: Houston
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Re: Non-treaded wheels?

Quote:
Originally Posted by Peter Matteson View Post
Your treads fall off?

We've never had that problem and have been using belted wheels for 4 out of the last 5 years.

Are you using large head rivets?
Do you rivet too close to the end of the tread?

I'm curious what your failure method actually is.
During build season we used 1/8th and 3/16th steel rivets, then during ship day and the FL regional the every single tread came off at least once, when one would fall off we would switch it out with a new tread and new rivets, the 3/16th rivets were large head.

The failure would happen when one of the ends would come loose then take the rest with it. Each end had two rivets, in between each spoke would also have two. Most of the time the rivets did not come out, the tread just tore a hole in the rubber around the rivet.
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Team 1557 2007-2011 student-Lake County FL

Current Team 4639 mentor- Houston TX