Mechanical Speed Variator

Stepless Speed Variator Trisons Variable Speed Drives is a planetary drive, where power and speed are transmitted by spring applied friction forces. The Input shaft drives the inner sun. The two halvos of the inner suns are compressed together with cup springs creating force against the planets. The planets also contract the outer rings which are fixed within the housing. The axies of the planets are connected to the planet carrier and output shaft by bearings fitted into slots in the planet carrier. When the input shaft turns the inner sun, the planets rotate against the outer rings, thereby causing the planet carrier and output shaft to rotate.