A system for removing end play in electric motors. A ball is placed near an end face of a shaft having end play. Pressurized fluid is applied to the ball, driving it into contact with the end face. The fluid solidifies, forming a solid body which supports the ball in its position of contact ...http://www.google.com/patents/US5794326?utm_source=gb-gplus-sharePatent US5794326 - Removal of end play in electric motors