Ross Flex Tester For Testing Lab

Ross Flex Tester - The ability of rubber vulcanizates to resist crack growth of a pierced specimen when subjected to repeated bending can be evaluated with the help of a Ross Flex Tester. The  Ross Flex Tester consists of an arrangement to hold one end of the test specimens in an oscillating grip such that they can be bent through an angle of 90° at the specified frequency, and adjustable guide rollers to keep the free end of the test specimens pressed down during the bending operations.   The specimen grip has provision for holding six pairs of test specimens at a time. The grip is pivoted on two ball bearings to give a smooth low-friction movement. Movement of the grip causes test specimens to bend over a silver steel ground rod with its axis coinciding with the axis of movement of the grip. The movement is provided by a motor and V-belts through an eccentric and link mechanism. An electronic digital counter with backup memory is provided to record the total numbers of bending cycles.