发明申请
- 专利标题: Sealing system
- 专利标题(中): 密封系统
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申请号: US12318129申请日: 2008-12-22
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公开(公告)号: US20090108541A1公开(公告)日: 2009-04-30
- 发明人: M. Brad Beardsley , David E. Bowman , Mark S. Diekevers , Karen R. Raab , William C. Smith , D. Trent Weaver
- 申请人: M. Brad Beardsley , David E. Bowman , Mark S. Diekevers , Karen R. Raab , William C. Smith , D. Trent Weaver
- 专利权人: Caterpillar Inc.
- 当前专利权人: Caterpillar Inc.
- 主分类号: F16J15/16
- IPC分类号: F16J15/16 ; F16J15/34 ; B62D55/205
摘要:
A bushing includes an interior surface, an exterior surface, a first end, and a second end. An end face forms at least part of each of the first end and the second end. At least one of the exterior surface and the end face includes a sealing surface formed at least in part of a coating including a material having a hardness level greater than about 1200 Knoop. The sealing surface has a thickness greater than about 35 microns and an average roughness (Ra) less than about 0.25 micron. In one embodiment, the bushing may be used on an endless track for a track-type work machine.
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