| 主权项 |
1. A thrust bearing assembly, comprising:
an axis; a housing having an inner periphery; a gearwheel; a first race ring;
in contact with the inner periphery of the housing;located inward of the housing in a radial direction orthogonal to the axis; and, comprising:
an outer peripheral wall including:
a plurality of valleys; and,a plurality of peaks;an inner peripheral wall; and,a front end face:
orthogonal to the axis and facing in a first axial direction parallel to the axis; and,connecting the outer peripheral wall and the inner peripheral wall; a second race ring in contact with the gearwheel and including a first end face orthogonal to the axis and facing a second axial direction, opposite the first axial direction; and, a plurality of cylindrical or needle rollers disposed between the front end face and the first end face in the first axial direction, wherein:
the outer peripheral wall, includes:
a first annular step:
in contact with the housing; and,having a first outer diameter;a second annular step having a second outer diameter less than the first outer diameter; and,a third annular step:
having a third outer diameter less than the second outer diameter; and,the first annular step includes the plurality of valleys and the plurality of peaks;at least a portion of the plurality of peaks is in contact with the housing;the plurality of peaks extend further from the axis in the radial direction, orthogonal to the axis, than the plurality of valleys; and,respective peaks from the plurality of peaks alternate, in a peripheral direction, with respective valleys from the plurality of valleys a spring ring engages the third annular step. |
