PEEK was a high-strength,heat-resistant engineering polymer,but the absence of bas-ic data of PEEK contact fatigue restricted the reliable and long-life applications under heavy-duty con-ditions.PEEK rolling contact fatigue tests and gear contact fatigue tests under oil injection lubrication were conducted herein,and the S-N curves were obtained.It is found that the PEEK rolling contact fatigue limit is 14％higher than gear contact fatigue limit,and the rolling contact fatigue life of rollers under the contact pressure of 135 MPa is 58％higher than gear fatigue life.And then,the conversion formula of PEEK roller-gear contact fatigue life was further proposed.
维普
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