Motion guiding device and lubrication path component used in motion guiding device

    公开(公告)号:US11905990B2

    公开(公告)日:2024-02-20

    申请号:US17627479

    申请日:2020-05-07

    申请人: THK Co., Ltd.

    IPC分类号: F16C29/06 F16C33/66

    摘要: A motion guiding device includes a supporting body and a moving body. The moving body includes a moving body main body, a cover body and a circulation component. The cover body includes a first lubrication groove. The motion guiding device is further provided with a lubrication path component, the lubrication path component including a second lubrication groove having a cross-sectional area less than that of the first lubrication groove. When a lubricating oil is used as the lubricant, the lubricant is supplied by a lubricating oil lubrication path formed by the first lubrication groove and the second lubrication groove. In this way, in the motion guiding device, the lubrication path may be widened when the lubricating grease is used to lubricate, while the lubrication path may be narrowed when the lubricating oil is used to lubricate, so that a good lubrication may be easily achieved.

    BEARING CAGE WITH LUBRICATION CHANNEL
    2.
    发明申请

    公开(公告)号:US20190055988A1

    公开(公告)日:2019-02-21

    申请号:US15681830

    申请日:2017-08-21

    发明人: Edward J. Wey

    摘要: A roller-cage assembly that provides both improved lubrication and reduced contact surface of the cage is disclosed. The roller-cage assembly includes a plurality of rolling elements and a cage. The cage includes a first radial flange, a second radial flange, and a plurality of crossbars extending therebetween that define a plurality of rolling element pockets. The plurality of rolling elements are located in at least some of the plurality of rolling element pockets. The plurality of crossbars each include lateral surfaces that support the plurality of rolling elements. The cage includes a radial support surface that includes at least one recess. The at least one recess serves as a lubrication reservoir as well as provides a reduction in surface area of the radial support surface against an associated support element, such as a housing, shaft, or bearing ring.

    Synthetic Resin Retainer for Large Thrust Ball Bearings with Dry- and Wet-lubricant Management Systems

    公开(公告)号:US20170370406A1

    公开(公告)日:2017-12-28

    申请号:US15193077

    申请日:2016-06-26

    申请人: ATEC Corporation

    发明人: Anh Tran

    IPC分类号: F16C19/10 F16C33/38 F16C33/66

    摘要: A thrust ball bearing retainer a large size of bearings with the bearing raceways being modified using a surface enhancement process such as hard anodizing coating, which provides low friction coefficient and initial wear rate. The retainer material is selected to be molded, synthetic resin, self-lubricated material reinforced with carbon fiber, molybdenum disulfide, and PTPE. This lubrication system eliminates the thermal induced bearing torque effect due to viscosity. The retainer contains multiply segments with an inner race guided configuration, an alternative ball pocket cross section design and a ball pocket slotted configuration (1) to reduce the thermal induced effects due to coefficient of thermal expansion mismatch between the raceway and the retainer material (2) to enhance the producibility of the retainer due to out-of-round, out-of-flatness and torsional wrap, and (3) to reduce the manufacturing cost. The pocket design with an oval cross section instead of a circular cross section also reduces the localized thermal induced effect which would otherwise result in a pinching condition between the ball and the retainer. The alternative slotted retainer pocket design is used to increase the compliance between ball/pocket interfaces, which helps to reduce the dynamic induced effects. The ends of the retainer segments are designed to reduce the interactive transferring, circumferential force between two adjacent segments.

    Rolling bearing cage or cage element

    公开(公告)号:US09850948B2

    公开(公告)日:2017-12-26

    申请号:US15105859

    申请日:2014-12-10

    申请人: AKTIEBOLAGET SKF

    IPC分类号: F16C33/46 F16C33/66 F16C33/51

    摘要: A rolling-element bearing cage or cage element includes at least one axial bridge region having first and second guide surfaces, the first guide surface and the second guide surface each have a recessed region axially between first and second non-recessed regions, at least one V-shaped receiving space in a radial outer surface of the rolling-element bearing cage or cage element configured to receive lubricant, and first and second fluid channels extending from the at least one receiving space to the recessed regions of the first and second guide surfaces. The fluid channels have rectangular cross sections, are about as wide as a width of the recessed regions, and are angled at an acute angle to a radial direction, and the receiving space is approximately as wide as the recessed regions.