公开(公告)号：US11306774B2

公开(公告)日：2022-04-19

申请号：US16979041

申请日：2019-03-08

Applicant: NSK LTD.

Inventor： Makoto Zembutsu ,  Hiroaki Yamanaka ,  Tomoyuki Miyazaki ,  Hiroki Maejima

IPC: F16C19/26 ,  F16C19/36 ,  F16C33/10 ,  F16C33/46 ,  F16C33/66

Abstract: A holder of a tapered roller bearing is made of a resin, has a first gap between an axially inner end surface of a small-diameter-side annular part and small-diameter-side end surfaces of tapered rollers, has a second gap between an axially inner end surface of a large-diameter-side annular part and large-diameter-side end surfaces of the tapered rollers, and is provided to be capable of moving within a prescribed range along the axial direction. The surface of the axially inner end surface of the large-diameter-side annular part is rough, the large-diameter-side annular part is provided with one or more grooves which are oil-holding parts that hold the lubricating oil, and ends of the grooves are positioned to be capable of coming into contact with the tapered rollers.

公开(公告)号：US11629768B2

公开(公告)日：2023-04-18

申请号：US17624896

申请日：2020-09-23

Applicant: NSK Ltd.

Inventor： Nagao Dohi ,  Yuya Daikoku ,  Tomoyuki Miyazaki

IPC: F16D67/02 ,  F16D13/14 ,  F16D41/069 ,  F16D43/02 ,  F16D51/12 ,  F16D65/22 ,  F16D43/21 ,  F16D121/14

Abstract: The reverse input cutoff clutch includes: a pressed member having a pressed surface around the inner peripheral surface; an input member coaxially arranged with the pressed surface and having an input-side engaging portion arranged on the radially inner side of the pressed surface; an output member coaxially arranged with the pressed surface and having an output-side engaging portion arranged further on the radially inner side than the input-side engaging portion; and an engaging element arranged so as to be movable in a first direction as a direction toward or away from the pressed surface on the radially inner side of the pressed surface. The engaging element has a main engaging element body having a pressing surface and a pivot-support shaft, and a link member. The link member has a first end portion pivotally linked to the pivot-support shaft, and a second end portion pivotally linked to the input-side engaging portion.

公开(公告)号：US11300166B2

公开(公告)日：2022-04-12

申请号：US17419848

申请日：2020-09-23

Applicant: NSK LTD.

Inventor： Nagao Dohi ,  Yuya Daikoku ,  Tomoyuki Miyazaki

IPC: F16D41/08 ,  F16D41/069 ,  F16D67/02 ,  F16D51/12 ,  F16D43/21 ,  F16D41/10 ,  F16D43/02 ,  F16D59/00

Abstract: A reverse input blocking clutch has: a pressed member having a pressed surface; an input member having an input-side engaging portion; an output member having an output-side engaging portion; and an engaging element having an engaging element main body and a link member to move in the first direction away from or toward the pressed surface. The engaging element main body has a pair of main body plates arranged to overlap in the axial direction, and a pivot support shaft arranged on the side in the first direction closer to the pressed surface than the input-side engaging portion with the both side portions supported by the pair of main body plates. One pressing surface facing the pressed surface is provided on one main body plate, and the other pressing surface is provided on the other main body plate.