Best belt size for a roller claw

[AdamHeard]

Originally Posted by Peter Matteson

We used normal 2" OD .065" wall tube. We milled the end caps so that the tube sat in a recess and there was an overhang to keep the belts from coming off the rollers. This also allowed us to fillet weld the end caps rather than butt weld them.

Was the flange significantly larger in OD to keep the belts from jumping to the area of higher tension, or was this a nonissue?

For reference, would you mind posting the gearing specs so we can figure out the force at that junction? I'd love to know that information.