Patent ID: 6351047
Filing Date: 2002-02-26
Classification: H02K,Y10T

Abstract:
An electric motor including(a) a stator including at least one winding; (b) a bearing; (c) a rotatable shaft extending through said stator and said bearing and having first and second portions; (d) a rotor mounted on said first portion of said shaft and positioned in said stator to rotate simultaneously with said shaft; (e) means for rotating said shaft and said rotor in a selected direction of travel; (f) load generating means mounted on said second portion of said shaft to, during the rotation of said shaft, generate a force pulling said first portion of said shaft and said rotor toward said bearing; (g) a washer intermediate said rotor and said bearing and contacting said bearing to prevent said rotor from contacting and rotating over said bearing, said washer including (i) an opening through which said shaft extends such that said washer can freely rotate about said shaft and with respect to said rotor and said bearing, and (ii) a distal end extending outwardly from said shaft and from said rotor; and, (g) a stop fixedly mounted in said motor to be contacted by said distal end of said washer to prevent said washer from rotating in said direction of travel.