Our cogged raw edge single rib and multiple ribbed cogged V-belts are both oil and heat resistant. All of our cogged belts are static dissipating. The cogged construction is especially useful for high speed, compact drives. These belts all have the UniMatch feature which means that they can run singly and where multiple belts are required. Raw edge, cogged multiple V-belts are listed by industry number in which the first letter indicates belt section, the X is a cogged construction and the number is belt inside length in inches.