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 Round Urethane Belt Drive

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Alex
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Registration date: 2009-03-29

PostSubject: Round Urethane Belt Drive   Sat Apr 24, 2010 12:20 pm

I was in the process of designing a new 4wd robot. I was thinking of other options rather than timing belts and pulleys and i remembered seeing several people use round urethane belts. EWCTC used them on Warthog i think.

What diameter belt would be best for 2" tires?
How deep should the grove be?
Whats the best way to join the endless ones?


Thanks Guys
Alex
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Josh Raichel
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Registration date: 2009-04-30
Age: 23
Location: Bradenville, PA

PostSubject: Re: Round Urethane Belt Drive   Sat Apr 24, 2010 12:34 pm

Yea Alex. Go Ahead and do it. It won't give you any probs.... Twisted Evil Twisted Evil Twisted Evil
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jeeves_m_d
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PostSubject: Re: Round Urethane Belt Drive   Sat Apr 24, 2010 3:38 pm

The round urethane belts get the job done but they are crappy. Joining the ends properly is difficult and requires patience. I have had luck with the 1/4'' stuff myself but i have been using 3'' colsons. and a 3/8'' groove.
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Frisco
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Age: 42
Location: Brownsville, Pennsylvania

PostSubject: Re: Round Urethane Belt Drive   Sun Apr 25, 2010 10:07 am

I think I replied earlier on a topic that we have done some testing with o ring belts and this and the weapon belts are the 2 places we have tested.. Both areas are great with 1/4 inch O rings.. The only thing to watch for is stretching of the belts on the weapons. With some of the high speeds that are turning the Orings get a little warm and tend to stretch after a few weeks.

The drives are great because it is a weight saver and space saver... they work great and set them in 3/8 deep and 5/16 wide....

If you go with a taller tire, set them in deeper so you dont have the chance of getting them cut by sticking up too high between the wheels.

We are redesigning right now and testing on how deep we can go on some 7/8 and 1.5 colsons without damaging the wheels integrity.

I'll let you know what we coma up with within a week or 2..

Frisco
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