The contact between the test specimen and the two abrading wheels’ sliding rotation produces the characteristic rub-wear action. While the turntable rotates in one direction, the sample drives the wheels in the opposite direction, around a horizontal axis that is tangentially displaced from the sample’s axis.

One of the abrading wheels rubs the test specimen outward, in the direction of the periphery. The other goes inward to the center. Meanwhile, a vacuum system gets rid of the loose debris from the test. The wheels pass through a complete circle over the surface of the specimen. It reveals the abrasion resistance from all angles in relation to the material’s grain or weave. The abrasion marks that result from the process form a crossed arc pattern in a circular band, and covers an approximate area of 30 sq. cm.