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US 2026/0210409 A1Published application
Tripod constant-velocity joint
AssigneeJtekt Corporation
InventorsKenji OISO, Keishi KOBATA, Akihiko HASEGAWA
Life of this patent
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Abstract
A tripod constant-velocity joint includes an outer ring, a tripod, and a plurality of roller units. Each of the plurality of roller units has an outer roller, an inner roller, and a needle that is cylindrical and that is sandwiched between the outer roller and the inner roller. A needle count (A), a needle diameter (B), and a circumferential direction clearance (C), of the needles (33), are set to values that satisfy the following Expression (1): (C/(A×B+C)×100≥0.678.
Claims3
A tripod constant-velocity joint comprising:
- an outer ring having a plurality of raceway grooves extending in an axial direction;
- a tripod having three shaft portions;
- and
- a plurality of roller units formed in an annular shape, rotatably supported on each of the three shaft portions, and also each rolling in each of the plurality of raceway grooves, wherein
- each of the plurality of roller units has an outer roller, an inner roller, and a needle that is cylindrical and that is sandwiched between the outer roller and the inner roller, and
- a needle count (A), a needle diameter (B), and a circumferential direction clearance, (C) of the needles, are set to values that satisfy the following Expression (1):
- (C/(A×B+C)×100≥0.678 . . . (1).
4 more elements
Dependencies are inferred from the claim text.