Two part seal assembly for a track roller bearing

    公开(公告)号:US10443650B2

    公开(公告)日:2019-10-15

    申请号:US15952897

    申请日:2018-04-13

    Abstract: A seal assembly for a bearing includes an inner seal member that has an annular ring with a first lobe extending therefrom and a seal receiving surface on a leg extending axially from the annular ring. The seal receiving surface has two seating areas. The seal assembly includes an outer seal member positioned radially inward from the leg and axially outward from the annular ring. The outer seal member has a pivot member which has a second lobe extending outwardly therefrom. The seal assembly includes a retaining ring that has a circumferential groove formed therein. The pivot member is pivotally seated in the groove so that the second lobe is moveable between the two first seating areas.

    BEARING SYSTEM FOR AN ARTICULATING MOTOR DEVICE

    公开(公告)号:US20190301525A1

    公开(公告)日:2019-10-03

    申请号:US16366565

    申请日:2019-03-27

    Abstract: A bearing system for a rotating vertical shaft includes a first ball bearing, having a first pitch diameter and a first axial stiffness and a second ball bearing having a second pitch diameter and a second axial stiffness. The first ball bearing is a deep groove Conrad bearing. The second ball bearing is an angular contact bearing. The first and second ball bearings are coaxial, secured to one another and rotatable together. The first pitch diameter is at least 1.5 times greater than the second pitch diameter. The bearing system has an axial stiffness ratio defined by the first axial stiffness divided by the second axial stiffness. The axial stiffness ratio is based on an axial preload force applied to the second outer ring such that an operating torque of the bearing system is within a predetermined range at temperatures from minus 40 to positive 85 degrees Celsius.

    MULTIPLE STAGE SEAL FOR A BEARING ASSEMBLY
    17.
    发明申请

    公开(公告)号:US20180003234A1

    公开(公告)日:2018-01-04

    申请号:US15634186

    申请日:2017-06-27

    Inventor: James Voisine

    Abstract: A flexible double lipped annular seal includes an anchor segment at a radially outermost portion thereof and having a pocket formed therein. The annular seal includes a branch segment extending axially outward and radially inward from the first leg at an angle. A first lip seal and a second lip seal extend radially inward from the branch segment and have a gap therebetween. The branch segment terminates in a stub segment. The annular seal includes a metallic shield secured to the annular seal and a portion of which seats in the pocket.

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