Electric motor with reduced noise used e.g. for electric razors - by one-sided radial force application to rotor shaft end

摘要

An electric motor (10) has a housing (12) enclosing a rotor which rotates within a stator and which has a rotor shaft (14) passing centrally through the stator and mounted at its ends in bearings (18, 19), the novelty being that a radial force is applied from one side onto one end (15) of the rotor shaft (14). Preferably, the force is applied by a spring (20) with a metal or plastic leaf spring element (22) which may act indirectly on the shaft via a pressure piece made of wear resistant plastic, especially PTFE or polyamide.