... wheel with specified Load to rub the surface of specimen Rubber Abrasion Tester is designed according to JIS, ASTM and relative ... to leather, fabric, paint, paper, floor brick, plywood, glass, natural rubber and so on..Grinding WheelDiameter 2 inches, Width 1/2 ... inches 63.5mm 38mm Use stepper motor, 1-100RPM, can set (default set value 60RPM)Loading250g, 750g, 1000g (bare weight 250g, attached ...