SUSPENSION DEVICE AND ASSEMBLY METHOD THEREFOR

    公开(公告)号:US20220266646A1

    公开(公告)日:2022-08-25

    申请号:US17636515

    申请日:2021-01-25

    Applicant: NSK LTD.

    Abstract: A suspension device has an upper shell having a stepped section around an inner circumferential surface; a lower shell; a ball screw shaft rotatably supported by the upper shell; a bearing unit arranged between a part of the ball screw shaft and the upper shell, and having an outer side part in a radial direction including a side surface that comes in contact with a side surface on the other side in the axial direction of the stepped section; a ball nut screwed on the ball screw shaft; an inner tube joined to the lower shell and the ball nut; an electric motor; and a coil spring, and a circumscribed circle diameter of the ball nut and the inner tube is less than an inner diameter dimension of the stepped section.

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