Variable speed belt drive sheaves are common on combines. At their simplest, a pair of sheaves at one end of a belt moves closer together or farther apart. Another pair of sheaves at the other end of ...

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 ...

A CVT, or continuously variable automatic transmission, is a type of automatic transmission that typically uses pulleys and either a belt or chain—as opposed to gears—to transfer the engine's power to ...

A continuously variable transmission, or CVT, is a type of automatic transmission that uses a pair of pulleys connected by a belt or chain to transmit power from the engine to the rest of the ...

So up to now we've only referred to the CVT as efficient or economical. While true, it doesn't mean the CVT has to be condemned to the confines of the econo class of cars. Luxury cars can reap ...