Patent ID: 6293704
Filing Date: 2001-09-25
Classification: F16C,F16H,Y10S

Abstract:
A mounting for a shaft that rotates about an axis, said mounting comprising: a housing having a bore, the center of which lies along the axis, the bore being defined at least in part by a first surface that is inclined with respect to the axis; and an antifriction bearing for supporting the shaft in the housing, the bearing including an outer race that is located in bore and is formed from a material having a lower coefficient of thermal expansion than the material from which the housing is formed, the outer race having a second surface which is also inclined with respect to the axis and bears against the first surface on the housing, the outer race being secured in the bore such that when the housing expands axially more than the outer race, the first surface bears snugly against the second surface, the outer race also having a raceway that is presented inwardly toward the axis, the bearing also including a inner race that is located within the outer race and has a raceway presented outwardly away from the axis and toward the raceway of the outer race, the bearing further including rolling elements which are arranged in a row between the raceways of the outer and inner races; at least one of the first and second surfaces being oblique to the axis and oriented such that the force exerted on the second surface by the first surface tends to hold the outer race in a fixed position radially with respect to the axis.