Cooling fan, for engine, has propeller mounted on hollow end of shaft such that the bearing region extends towards the interior of the hollow end of the shaft to form axial bearing.

摘要

The cooling fan (3) consists of a propeller (4), mounted on a shaft (6) and driven in rotation around an axis (A). The propeller consists of a bearing region (17), which fits on to the hollow end (12) of the shaft and is secured by a fixing (23). The bearing region extends axially into the interior of the primary hollow end, which thus acts as a transverse bearing for the propeller.