If the energy in a technical system is transmitted by the frictional forces generated between belts and driving wheels, this is referred to as non-positive drive elements. These are used wherever no synchronous movement of the elements is required and the drive may or should have slip. For this area we offer, among others, V‑belts, V‑ribbed belts and flat belts.
flat belts have a rectangular cross section and, like all non-positive drive elements, transmit energy exclusively via frictional forces. The contact surfaces of the associated drive wheels usually have upwardly curved or raised edges to prevent the belts from slipping off the pulley.
V‑belts are characterized by their easy installation and long service life and allow a high transmission ratio. They are available with sheathed or open-flank design and offer higher transmittable power than flat belts.
V‑ribbed belts have individual ribs which run lengthwise to the belt itself. The larger contact surface on the V‑belt pulley results in greater friction and thus a higher power transmission than with ordinary V‑belts. They are very well suited for the simultaneous drive of auxiliary units.