Product Description

This apparatus consists of a spring-loaded rubber shoe mounted on a pendulum arm. The pendulum arm can be adjusted vertically from a rigid suport column when in operation. The base has three adjustable feet so that the swing of the pendulum during test moves through a truly circular path while in operation directly on a road surface. An essential feature of this apparatus is the fact that the slider is made from a carefully graded rubber specially selected and certified by Transport and Road Research Laboratory of Great Britain . All bearing and working parts are enclosed.