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

    申请人: NSK LTD.

    IPC分类号: F16H25/20 F16D1/10 F16H25/24

    摘要: 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.

    Apparatus for power transmission of vehicle

    公开(公告)号:US11913501B2

    公开(公告)日:2024-02-27

    申请号:US17380345

    申请日:2021-07-20

    IPC分类号: F16D1/10 F16D1/06 H02K7/00

    摘要: An apparatus for power transmission of a vehicle, including a motor having a motor spline unit extending therefrom, and configured to generate power, a rotating body configured to receive the power and rotate, and a coupler having a toothed structure including grooves and having an exterior to be coupled to the motor spline unit and an interior to be coupled to the rotating body, wherein a width of the grooves formed at one end of the interior is larger than a width of the grooves formed at an opposite end of the interior, a width of the grooves formed at one end of the exterior is smaller than a width of the grooves formed at an opposite end of the exterior, and the coupler is coupled in a tension coupling with the rotating body and the motor.

    Electrically isolated tool with failsafe coating

    公开(公告)号:US11772241B2

    公开(公告)日:2023-10-03

    申请号:US17704133

    申请日:2022-03-25

    申请人: APEX BRANDS, INC.

    IPC分类号: B25B13/06 F16D1/10 B25B23/00

    摘要: An electrically isolated coupler includes a drive body, a driven body, an insulating member and an isolation coating. The drive body is made of first metallic material and has a drive end configured to interface with a fastening component. The drive body includes a first interface portion and the driven body includes a second interface portion. The driven body is made of a second metallic material and has a driven end configured to interface with a driving tool. The insulating member is molded to fit between the drive body and the driven body to electrically isolate the drive body and the driven body from each other. The isolation coating is disposed on a surface of the first interface portion or the second interface portion that contacts the insulating member and faces the second interface portion or the first interface portion, respectively. The isolation coating includes a material that adheres to metal and has a dielectric strength of greater than about 10 kV.