Description: B131 Classical V-Belt • Reference: B131 • Length: 131 in Inside Length, 134 in Outside Length • Top Width: 5/8 in • Height: 7/16 in • Weight: 1.35 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 B131 are commonly used in industrial applications because of their relative low cost, ease of installation. The B131 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 B131 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.