FRICTION MATERIAL FOR SUPERSONIC MOTOR AND SUPERSONIC MOTOR USING IT

摘要

PURPOSE:To enable stable motor characteristics to be maintained for a long time by using a porous ceramic sintered body as a main constituent in a friction material for a supersonic motor and by dipping at least a lubrication agent into a pore part of the above porous ceramic sintered body. CONSTITUTION:A piezoelectric body 2 is adhered and fixed to a lower surface of a vibrating body 1. Further, a friction material 4 where a porous ceramic sintered body is a main constituent and at least a lubricating agent is dipped at a pore part of this porous ceramic sintered body is included between a moving body 3 and the vibrating body 1, thus enabling a constantly stable friction contact state to be maintained even if there is change in environmental temperature and press force of motor.