Improvement of Wear Resistance of Cam Shaft and Rocker Arm at 4-Cycle Engines

Paper #:
  • 1999-01-3296

Published:
  • 1999-09-28
Citation:
Mizuta, A., Onishi, Y., Takagi, S., and Kaido, H., "Improvement of Wear Resistance of Cam Shaft and Rocker Arm at 4-Cycle Engines," SAE Technical Paper 1999-01-3296, 1999, https://doi.org/10.4271/1999-01-3296.
Pages:
7
Abstract:
The rocker arm has a function to lead the cam shaft rotation to the valve operation. There are cases when damages are caused due to abnormal wear at the sliding part, causing certain problems. Authors classified the wear phenomenon, and realized a systematic analysis on the possible cause of the damage. As a result, it was revealed that the damage was of two types, and to prevent the hard wear, it is effective to apply shot peening before plating. The prototype rocker arm was test under various lubricating conditions, thus actually confirming that the occurrence of wear was largely reduced.
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