Wedge belts are very similar in design to the traditional v belts. They are made using a base rubber compound with heat-set pre-stretched polyester cords running through the length of the belt, these cords transmit tensile force and withstand shock loads. The belt also has a polyester cotton wrapping that grips to the pulley in which the belt is situated. The difference between a wedge belt and a traditional v-belt is that a wedge belt has a deeper cross section. This results in an increase in surface area allowing the belt to transmit a greater power than a traditional v-belt. SPA section wedge belts are both temperature and oil resistant.
SPA section belts are used in many applications including agricultural machinery, conveyor and fan assemblies, construction equipment, automotive parts and many other light and heavy industrial applications.