Abstract:
A method for assembling a double row angular contact rolling element bearing unit having an inner element with two raceways, and two separate outer ring pieces each with a single raceway, said outer ring pieces enclosing a gap which is wedge-shaped in a section through the bearing unit axis, and two series of rolling elements which are each accommodated between a raceway of the inner element and a raceway of an outer ring piece, tolerance means being provided between said outer ring pieces for urging said rings away from each other so as to provide the required tolerance (negative, zero or positive) to the bearing, said method comprises the steps of: providing an inner element having two raceways, providing two outer ring pieces each having a raceway, positioning the outer ring pieces around the inner element, positioning the series of rolling elements between the respective raceways of inner element and outer ring pieces, providing an endless tolerance ring, the cross-sectional dimensions of which are larger than the outer diameter of at least one of the outer ring pieces, shifting the tolerance ring up to a position opposite to the gap between the outer ring pieces, plastically deforming the tolerance ring so as to reduce the cross-sectional dimensions thereof and to provide the required tolerance between said tolerance ring and the opposing faces of the outer ring pieces which enclose the wedge-shaped gap.
Abstract:
A tripod includes a tripod bearing assembly. The tripod bearing assembly has a spider with a trunion radially projecting therefrom. The trunion has a bearing surface formed thereupon. A needle bearing assembly is provided for installation on the bearing surface of said trunion. The bearing assembly includes an outer race, a plurality of rollers and a cage for retaining the rollers to the outer race without bearing against an inner race prior to installation on the trunion.
Abstract:
A bearing for use in a water pump or similar apparatus and a method of assembling the bearing. The bearing has a stepped shaft and a counterbored raceway at the fan or pulley end which allows for use of a larger number of balls in the raceway at the fan or pulley end, and which allows for using larger balls at the impeller end. The method of assembly of the bearing includes assembling balls and a cage to form a ball and cage assembly, assembling ball and cage assembly into the outer race at its pulley end, then sliding the shaft, impeller end first, into the outer race through the pulley end such that the first inner raceway and the first balls align with the first outer raceway. The shaft is then displaced in a direction perpendicular to its axial centerline within the outer race. A second plurality of balls is inserted onto the shaft within the outer race at its second outer raceway end, and a second cage is inserted over the shaft and within the outer race to surround the second plurality of balls.
Abstract:
In a state where the axes of an inner race 20 and an outer race 30 are inclined with respect to each other, the maximum value of a clearance between the ball-fitting-direction rearward side edge portion of the second inner race raceway 22 of the inner race 20 and the ball-fitting-direction rearward side edge portion of the second outer race raceway 32 of the outer race 30 is larger than the diameter of the respective balls belonging to the second ball row. Also, the maximum value of a clearance between the ball-fitting-direction forward side edge portion of the second inner race raceway 22 of the inner race 20 and the second outer race raceway 32 edge portion on the upper side peripheral surface 33 of the outer race 30 is smaller than the diameter of the respective balls belonging to the second ball row.