Drive system for driving water pump, has revolving ring and pulley rotatably connected to driving shaft, and support with external tubular part extending along rotation axis from water pump over width of bearing

摘要

The system (S) has a bearing (10) with a fixed ring (102) relative to a metal casing (4). A revolving ring and a pulley are rotatably connected to a driving shaft (2). A support (14) comprises an internal tubular part (140) and an external tubular part (144) fixed at an end (21) of the driving shaft. A drive belt (8) is mounted on the pulley. The external tubular part extends along a rotation axis from a water pump (P) over a width of the bearing. A central radial part (142) connects the internal and external tubular parts.