Ribbed Belt including automotive and industrial ribbed belt. Automotive Ribbed belt also name Poly ribbed belt, Are mainly PK series. Industrial Ribbed Belt are mainly PK, PJ, PH, PM and PL series. Poly ribbed belt are produced using special material formulation and techniques so as to provide heat, oil, abrasion and aging resistance and such advantages as lower noise levels and longer life.

It is predominantly the materials used which differentiate the CR and EPDM ribbed belts. The CR ribbed belt has both heat and cold resistance capabilities. Its flexing, aging and ozone ageing resistance are generally better than those of unsaturated rubber. It also offers better oil and solvent resistance and chemical stability. It can endure high levels of transverse and belt pitch pressure and has comparatively reduced after-strained deformation. EPDM ribbed belts offer much better aging resistance, especially ozone, weather and heat resistance. In addition, these products electric insulation properties, chemical corrosion resistance and impact elasticity, especially at low temperatures, are superior to the CR ribbed belt.