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Spherical oil film bearing

  • US 10,006,486 B2
  • Filed: 11/18/2015
  • Issued: 06/26/2018
  • Est. Priority Date: 03/05/2015
  • Status: Active Grant
First Claim
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1. An oil film bearing for rotatably supporting a roll in a rolling mill, said bearing comprising:

  • a sleeve having an internal bore and an external spherical surface, said internal bore being configured and dimensioned for axial insertion onto a neck of said roll;

    a bushing having an internal spherical surface configured and dimensioned to surround and rotatably contain the external spherical surface of said sleeve, said bushing being subdivided into multiple interconnected segments;

    a chock for containing and radially supporting said interconnected bushing segments, the bushing segments and sleeve form an integral assembly receivable as a unit in the chock;

    a pin that rotatably fixes said bushing in said chock;

    means for supplying liquid lubricant between said internal surface and external surface that includes a network of passages in said chock and bushing communicating with elliptically rebored first recesses in said internal spherical surface at a location outside of a load zone of the bearing; and

    an inboard end and an outboard end of said bushing segments being spaced from and thus not radially supported by said chock.

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