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Half thrust bearing and bearing device

  • US 9,188,159 B2
  • Filed: 02/18/2014
  • Issued: 11/17/2015
  • Est. Priority Date: 02/21/2013
  • Status: Active Grant
First Claim
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1. A half thrust bearing having a semicircular ring shape for receiving an axial force of a crankshaft of an internal combustion engine, the half thrust bearing comprising:

  • a slide surface;

    an end surface; and

    a thrust relief formed adjacent to the end surface along a circumferential direction of the slide surface, wherein;

    a wall thickness of the thrust relief decreases toward the end surface,the thrust relief has an inner end portion and an outer end portion,the inner end portion extends circumferentially from the end surface to the slide surface along an inner circumferential perimeter,the outer end portion extends circumferentially from the end surface to the slide surface along an outer circumferential perimeter, anda length of the inner end portion is longer than a length of the outer end portion.

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