pic: Team 60 Wheel Design

[JVN]

www.mcmaster.com

Search "Wedge top" (with the space) or skip to page 1089.

This "wedgetop" inclined conveyor belting is the stuff sometimes refferred to as "60 tread". It has been used by many teams, including Kingman, with great effect.

Also, on that same page, check out "Roughtop" conveyor belting. This is also good stuff. (I've heard to use the gum-rubber, "tan").

Both of these materials have coefficients of friction between 1.2 and 1.4.

Though there have been many arguments about which material is better, you should probably do your own testing, and decide from there. The 2 major qualities you'll want to experiment with are: coefficient of friction, and wear characteristics. In 2003, the wire mesh on the ramp ate "wedgetop" for breakfast. You needed to swap out wheels every few matches to keep them in good shape.

Good Luck,
John