Friction belt, v profile, cogged edge, AX section, AX48, 13 x 8 x 1250 mm, Fenner.

Friction V-belts are an early solution that solved the slippage and alignment problem. The shape of the belt tracks in a mating groove in the Vee pulley (or sheave), with the result that the belt cannot slip off. The belt also tends to wedge into the groove as the load increases, the greater the load, the greater the wedging action, improving torque transmission and making the vee belt an effective solution. Cogged belts have slots that run perpendicular to the belt's length. These slots reduce the bending resistance of the belt. Cogged belts are effective where pulley diameters are extremely small and belt speed requirement are high. The belts have a specially treated jacket to give superior anti-static, heat and oil resistant properties.