Method for forming a bearing apparatus
First Claim
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1. A method for forming a bearing apparatus comprising:
- providing a roller bearing having an inner ring with an inner circumferential surface, an inner ring radial end surface, and a chamfered corner having a chamfer radius X2 and extending from an inner circumferential surface end point to said inner ring radial end surface;
providing a hollow shaft body having;
a shaft end;
an internal splined portion having a spline pitch diameter y1 and extending to toward said shaft end to a spline portion end point; and
a spline free portion having a thickness y2 extending from said spline portion end point to said shaft end;
calculating a distance X1>
X2(y1/y2);
positioning said inner ring on said hollow shaft such that said inner circumferential surface end point is distanced from said spline portion end point toward said shaft end by the distance X1; and
swaging said hollow shaft outward from a bending starting point aligned with said inner circumferential surface end point to said shaft end to fix said inner ring.
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Abstract
A bearing is mounted on a hollow shaft of a hub wheel. A shaft end of the hollow shaft is deformed radially outward and caulked to an outer end face of an inner ring of the bearing. Between a first area in which a spline portion is formed and a second area in which a caulked portion is formed, between a bending starting point for bending the shaft end radially outward and an end face of the shaft end on an inner peripheral face of the hollow shaft, a third area for suppressing deformation of the inner peripheral face of the hollow shaft caused by the caulking is formed. The third area cushions deformation in the first area.
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Citations
2 Claims
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1. A method for forming a bearing apparatus comprising:
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providing a roller bearing having an inner ring with an inner circumferential surface, an inner ring radial end surface, and a chamfered corner having a chamfer radius X2 and extending from an inner circumferential surface end point to said inner ring radial end surface;
providing a hollow shaft body having;
a shaft end;
an internal splined portion having a spline pitch diameter y1 and extending to toward said shaft end to a spline portion end point; and
a spline free portion having a thickness y2 extending from said spline portion end point to said shaft end;
calculating a distance X1>
X2(y1/y2);
positioning said inner ring on said hollow shaft such that said inner circumferential surface end point is distanced from said spline portion end point toward said shaft end by the distance X1; and
swaging said hollow shaft outward from a bending starting point aligned with said inner circumferential surface end point to said shaft end to fix said inner ring. - View Dependent Claims (2)
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Specification