Variable-pitch drives are the simplest of all mechanical adjustable-speed mechanisms. Most of these drives use rubber belts. However, chain types are unmatched in regard to its particular strong ...

Over-tensioning shortens not only the life of V-belts but also that of the sheaves, electric motor, and driven equipment bearings. In extreme cases, it can even bend or break a motor shaft.

Flat rubber belts were developed around the turn of the century primarily as replacements for leather belts. With the advent of V-belts, fewer machines were designed to use flat belts, and their ...

This is a typical small-block Chevy serpentine-belt drive on the front of a 350. This particular application is a little more complicated because of the Paxton installation, but you can see the belt ...