Cam Shaft Assembly and Assembly Method Thereof
OwnerHiroshi Ueno, Kazuyoshi Yamakawa +1inventors
InventorsHiroshi Ueno, Kazuyoshi Yamakawa, Toshihiro Hakata
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Abstract
A cam shaft assembly is provided which accomplishes torque reduction, which obviates a shortened service life of a bearing and which is designed to reduce a radial dimension with respect to the center of a camshaft. The cam shaft assembly includes: the cam shaft (1); a cam 2 separate from the cam shaft (1) and including a through-hole so as to be fitted on the cam shaft (1); and a rolling bearing 3 including annular monolithic inner and outer rings and serving to rotatably support the cam shaft (1). The cam shaft (1) is formed in a linear structure which has the same diameter at its portion where the cam 2 is mounted and its portion where the rolling bearing 3 is mounted.
Claims20
A cam shaft assembly comprising:
- a cam shaft;
- a cam formed separately from the cam shaft and including a through-hole thereby to be fitted on the cam shaft;
- and a rolling bearing including an annular monolithic bearing ring and serving to rotatably support the cam shaft.
An assembly method of a cam shaft assembly comprising a plurality of cams and a plurality of rolling bearings which are disposed on a cam shaft at predetermined axial positions, respectively, wherein the cams separate from the cam shaft and including through-holes and the rolling bearings are axially moved on the linear cam shaft from an end thereof to the respective predetermined positions in turn, whereby the cams and the rolling bearings are mounted to the cam shaft.
Dependencies are inferred from the claim text.