General Technical Information: (Single wrapped construction V-BELTS, 3L, SPZ, A or 4L, SPA, B or 5L, SPB, C, SPC, D, 3V, 5V, 8V.) BESTORQ single, wrapped V-belts give premium belt performance. The belts are constructed of highly engineered and high performance component. The components are manufactured using the latest in belt technology available on a global basis. All belts of a size are manufactured to run as a matched set, i.e. any BESTORQ 8V2000 belt will run as a matched set with any other BESTORQ 8V2000 belt. The outer fabric wrap is treated with highly oil and heat resistant, engineered synthetic rubber compound, specifically compounded for excellent wear resistance, proven through thousands of hours of testing. The helically wound tensile cords are specially engineered, twisted, heat and chemically set, polyester material. Testing has proven that the tensile decay properties of BESTORQ Cord are truly World Class. The body rubber compound is a highly engineered synthetic rubber compound, specially compounded for cool running, flexibility, crack resistance, and excellent bonding to the outer fabric and tensile cords. The belts exceed USA RMA published ratings levels. They are designed to perform at the identical or higher level than all other major USA Manufacturer’s belts of the same type. All 3L, A or 4L, B or 5L, C, D, 3V, 5V and 8V belts are manufactured to meet RMA standards for length and dimensions. All belts of a given size are manufactured to run interchangeably in a matched set. (SPZ, SPA, SPB, SPC, 9J, 15J, and 25J belts are manufactured to fit ISO standard dimension multi-groove pulleys.)
The BESTORQ B60 or 5L630 v-belt has a 63" outside circumference, 60" inside circumference, .64” width, and a .44” height.