Description: B31 Classical V-Belt * Reference: B31 * Length: 31 in Inside Length, 34 in Outside Length * Top Width: 5/8 in * Height: 7/16 in * Weight: 0.32 lb * Material: Rubber cushion, polyester cable cord as reinforcement and rubber impregnated woven cotton-polyester fabric * Temperature Resistance: -35C to +70C * Recommended use: Agricultural and Industrial machinery * Recommended pulley diameter: More than 71mm (2-3/4") * Other specifications: Limited Oil resistant, Antistatic, Tolerance Stable V-belts B31 are commonly used in industrial applications because of their relative low cost, ease of installation. The B31 has a V-shape that makes it easier to keep the belt in sheave grooves on fast moving applications. The biggest operational advantage of the B31 V-belt is the wedging action into the sheave groove. This geometry multiplies the low tensioning force to increase friction on the pulley sidewalls improving the power transmission.