These are dedicated belts for speed changing. They are cogged on their inner side to increase flexibility.These are the standard belts used on belt-type stepless speed changer units and some stand-alone models.
*Letters S and K at the end of the belt numbers just indicate a difference in the rubber composition and the material of the core. These belts can be used normally.
*The belt numbers in parentheses indicate that these belts are made to order.
*Mass (kg) = unit mass (kg/m) x belt's external perimeter (m)