Purdue University

Purdue University

Mechanical Engineering
Tribology Laboratory

Thrust Washer Test Rig


The Thrust Washer Test Rig was designed to measure the effects of speed, viscosity, bearing pressure, and bearing geometry on thrust washer performance. Flow visualization was achieved through the development of a semitransparent thrust washer. A micron scale sheet of shim stock was laser machined to create the pocket geometry. The thickness of the shim stock determined the depth of the pocket. The upper running surface (runner) was a flat ring with no surface modifications.





· The thrust washer test rig (TWTR) was designed to turn the runner atop the pocketed thrust washer. A load cell mounted at the base of the reservoir simultaneously measured load and frictional torque generated at the contact.

· The optical portion of the test rig consists of a porthole located in the bottom of the reservoir to allow visual inspection of the oil flow at the thrust washer/runner interface.


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