Continuously adjustable bevel gear wrap drive esp. for motor vehicles has Laser-cut radial grooves in bevel gear surfaces

摘要

The wrap drive has a first and a second bevel gear set, each with a fixed bevel gear and a relatively moveable second gear, both having surfaces in contact with e.g. a drive belt. At least one bevel gear surface per bevel gear pair has radial grooves to move fluid from the bevel gear surface. The grooves are cut in the surfaces by mechanical means, or by using esp. a Laser beam, fluid jet, electronic or particle jet.