ASTM D4170 - Fretting Wear Protection by Lubricating Greases
Signiﬁcance and Use
5.1 This test method is used to evaluate the property of lubricating greases to protect oscillating bearings from fretting wear. This method, used for speciﬁcation purposes, differentiates among greases allowing low, medium, and high amounts of fretting wear under the prescribed test conditions. The test has been used to predict the fretting performance of greases in wheel bearings of passenger cars shipped long distances. Test results do not necessarily correlate with results from other types of service. It is the responsibility of the user to determine whether test results correlate with other types of service.
1.1 This test method evaluates the fretting wear protection provided by lubricating greases.
Extracted, with permission, from ASTM D4170-16 - Fretting Wear Protection by Lubricating Greases, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, astm.org