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Bearing test apparatus for testing durability of bearing

  • US 9,714,883 B2
  • Filed: 10/03/2014
  • Issued: 07/25/2017
  • Est. Priority Date: 07/23/2014
  • Status: Active Grant
First Claim
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1. A bearing test apparatus comprising:

  • a bearing cap coupled to an outer ring of a test bearing;

    a hollow extension bar configured to transport cryogenic fluid to an inside of the bearing cap;

    a driving rotary shaft coupled to an inner ring of the test bearing to rotate the inner ring; and

    a bearing torque meter configured to measure a torque of the test bearing, and comprising;

    a measurement rod configured to contact the extension bar and be fixed to support the extension bar in a direction opposite to a rotating direction of the driving rotary shaft; and

    a power sensor configured to measure a force applied to the measurement rod, andwherein the torque of the test bearing is determined based on a distance from the driving rotary shaft to the measurement rod and a force applied to the measurement rod.

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