Oil resistance: occasional oil or grease splashes on the oil resistance V-Belt will not be too bad for ordinary belts. However, oil-resistant belts will not deteriorate quickly as long as the oil or grease is within a reasonable range. The oil or grease on any belt can cause the belt to slip and heat. Excessive oil contamination of petroleum products will cause the expansion of the rubber and the cohesive fall of the rubber components, which will cause the belt to break.