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Friction properties of journal bearing having bell-mouth geometry.

Number: pap. 1334

Author(s) : ISHIDA Y., USAMI H., NAKASHIMA N.

Summary

The present study describes an applicability of a bell-mouth geometry to improve tribological properties of the journal bearing of reciprocating compressors used for refrigerators. To fabricate the bell-mouth geometry to the journal bearing, a deep rolling process was applied to the edge surface. The resulting geometry of the bearing edge consisted of a micro-scale gradient of 1/1000 and a length of 4-6 mm. The tribological properties were evaluated with a specially-developed testing apparatus at a constant sliding speed under lubricated conditions. The applied load increased incrementally to evaluate tribological behavior including seizure occurrence. Actual components for the journal bearing were used as the specimen. Results showed that a significant improvement of tribological properties by the application of bell-mouth geometry. Contact stress analysis and estimating lubricating condition were conducted to estimate the tribological properties. Consequently, it is concluded that the application of the bell-mouth geometry is effective means to for improving the tribological properties of journal bearing for reciprocating compressors.

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Pages: 8

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Details

  • Original title: Friction properties of journal bearing having bell-mouth geometry.
  • Record ID : 30024297
  • Languages: English
  • Source: 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
  • Publication date: 2018/07/09

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