公开(公告)号：US20200300299A1

公开(公告)日：2020-09-24

申请号：US16086106

申请日：2018-04-10

Applicant: NSK LTD.

Inventor： Takanori TANAKA ,  Seigou URAKAMI ,  Seiji NAKAMURA

IPC: F16C33/58 ,  F16C19/16

Abstract: An outer ring includes an outer ring small-diameter part extending toward one axial side with respect to the outer ring raceway, a radial wall part extending from an axial end portion of the outer ring small-diameter part toward an inner diameter-side, and a folded-back part extending from a radially inner end portion of the radial wall part toward the other axial side. The folded-back part radially overlaps the inner ring small-diameter part with a radial gap therebetween. The radial gap of an inner diameter-side entry formed by an axial end of the folded-back part and the inner peripheral surface of the inner ring small-diameter part is smaller than the radial gap of an inner diameter-side exit formed by an axial end of the inner ring small-diameter part and an outer peripheral surface of the folded-back part.

公开(公告)号：US20240342784A1

公开(公告)日：2024-10-17

申请号：US18037620

申请日：2022-01-25

Applicant: NSK LTD.

Inventor： Seiji NAKAMURA ,  Manabu SEKIGUCHI

IPC: B21D28/16 ,  B21D53/10 ,  F16C19/30 ,  F16C33/54

CPC classification number: B21D28/16 ,  B21D53/10 ,  F16C19/305 ,  F16C33/547 ,  F16C2220/84 ,  F16C2326/01

Abstract: A press-formed product manufacturing method includes obtaining a first piece (19, 55) by punching a metal material, obtaining a second piece (28, 50) by comprising an edge of a second surface (8) of the first piece (19, 53) sandwiching the first piece (19, 55) between a first die (25) and a second die (26), and trimming a second piece (28) by using press working.