Fretting Wear Protection by Lubricating Grease

fretting wear protection

ASTM D4170

Purpose

Measure fretting wear properties of greases

Brief Description

Weight loss from a pair of ball thrust bearings identifies the fretting wear prevention properties of a lubricating grease. The thrust bearings are loaded with 2450 N and oscillated at 30 Hz through 12° for 22 hours at a variety of test temperatures. Wear results are influenced by base oil viscosity and oil release. The Fafnir Friction Oxidation Test rig is used for this test. The photos depict the test bearing and test rig.

The information presented in this article was originally derived from a publication from Mobil, and is presented here for information only. Please consult with your Certified Lubrication Specialist to ensure proper testing is done.