Patent ID: 6088910
Filing Date: 2000-07-18
Classification: B23P,F16C,Y10T

Abstract:
An apparatus for preloading a set of antifriction bearings supporting a bearing shaft in a housing, the shaft having a threaded end adapted to threadingly receive a nut by rotating the nut in a clockwise direction as viewed from the shaft threaded end, and a yoke coupled to the bearing shaft and adapted to rotate therewith, said apparatus for preloading the set of bearings comprising:a drive mechanism adapted to selectively engage and rotatably drive the yoke and the bearing shaft in a counterclockwise direction as viewed from the bearing shaft threaded end;a dead shaft adapted to selectively engage the nut and rotate therewith; and,a brake coupled to said dead shaft and selectively allowing and preventing rotation of said dead shaft, whereby when said dead shaft is engaged with the nut and said drive mechanism is engaged with and is rotatably driving the yoke, engagement of said brake and preventing rotation of said dead shaft and nut causes the nut to be threadingly received onto the bearing shaft and disengagement of said brake and allowing rotation of said dead shaft and the nut allows said dead shaft and nut to rotate with the bearing shaft and yoke.