Belt drive for electric machines.

摘要

A belt drive for an electric machine, preferably for an alternator for motor vehicles, is proposed, the aim being to use the said drive to relieve the drive shaft of the electric machine (10) of the tensile forces (20) of the driving belt (14). For this purpose, an elastic coupling part (30) is arranged between the drive shaft (22) and the pulley (15), and, for the purpose of receiving the tensile forces of the belt, the pulley (15) is fastened via an inner bearing (21) on a bearing bolt (17) of a fastening part (16) which, for its part, is fastened to the housing (13) of an engine block which drives the electric machine (10) via the driving belt.