Taper roller bearing
AssigneeJtekt Corporation
InventorsShigeo KAMAMOTO, Junji MURATA, Yuki SHISHIHARA
Life of this patent
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Abstract
A taper roller bearing includes: an inner ring, an outer ring, a plurality of taper rollers in which a cavity portions are formed on a large end surface, and an annular cage. The cage includes a small-diameter annular portion on one axial side, a large-diameter annular portion which is positioned on the other axial side and on the outer side in the radial direction of the large flange, and a plurality of column portions. An outer diameter of an axial inner surface included in the large-diameter annular portion is greater than a diameter of a virtual circle that links outer end portions in the radial direction of the cavity portions of the plurality of taper rollers.
Claims3
A taper roller bearing comprising:
- an inner ring which includes a small flange that is positioned on one side in an axial direction and protrudes to an outer side in a radial direction, and a large flange that is positioned on the other axial side and protrudes to the outer side in the radial direction;
- an outer ring which is positioned on the outer side in the radial direction of the inner ring;
- a plurality of taper rollers which are positioned between the inner ring and the outer ring and in which cavity portions are formed on a large end surface on the other side;
- and
- an annular cage which holds the plurality of taper rollers at an interval in a circumferential direction,
- wherein the cage includes a small-diameter annular portion which is positioned on one side, a large-diameter annular portion which is positioned on the other side and on the outer side in the radial direction of the large flange, and a plurality of column portions which link the small-diameter annular portion and the large-diameter annular portion to each other, and
- wherein an outer diameter of an inner surface in the axial direction of the large-diameter annular portion is larger than a diameter of a virtual circle that links outer end portions in the radial direction of the cavity portions of the plurality of taper rollers.
Dependencies are inferred from the claim text.