BALL SCREW DEVICE AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:US20240352993A1

    公开(公告)日:2024-10-24

    申请号:US18682598

    申请日:2023-05-11

    Applicant: NSK LTD.

    Abstract: A fitting shaft portion has an inner-diameter side engaging portion on an outer peripheral surface with external teeth arranged in a circumferential direction; a fitting member has an outer-diameter side engaging portion on an inner peripheral surface with internal teeth arranged in the circumferential direction and engaging with the inner-diameter side engaging portion; an engaging portion between the inner-diameter side engaging portion and the outer-diameter side engaging portion includes a portion having interference in the radial direction in a portion in the axial direction; and the fitting shaft portion has a crimped portion at an end portion on one side in the axial direction that engages in the axial direction with the fitting member.

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