In Taber testing, a flat specimen that is 100mm square or circular is mounted to a turntable platform that rotates at a fixed speed around a vertical axis. The Taber Rotary Abraser can measure materials with a typical thickness of 6.35 mm (materials greater than 6.35 mm but less than 40 mm can be tested with optional accessories). Particular pressure is supplied to two genuine Taber abrasive wheels as they are lowered onto the test specimen surface.

The test specimen comes into touch with the two abrading wheels as they slide around in a characteristic rub-wear action. The sample drives the wheels on the turntable in opposite directions as it revolves around a horizontal axis that is offset tangentially from the axis of the sample. During the test, a vacuum system eliminates loose material while one abrading wheel rubs the specimen outward toward the periphery and the other inward toward the core. Abrasion resistance is visible at all angles in relation to the weave or grain of the material when the wheels go around the whole circumference of the specimen surface. The resulting abrasion marks cover an area of around 30 cm2 and take the appearance of crossed arcs in a circular band.

NextGen’s Taber Abrasion Tester wheel center distance is 63.5mm.

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