Office Chair Wheel Wear tester is suitable for all office chairs with casters or chair wheels. It assesses the ability of the casters and chair frames to withstand fatigue pressure and wear caused by the forward and backward movement of the chair. The seat surface is placed with a weight (113 kg), the clamping fixture is driven by a motor and a synchronous belt, so that the office chair or chair frame moves back and forth to evaluate the wear resistance of the caster, and the stroke, speed and number of times can be set.