v belt

Engineering a notched belt is certainly a balancing act among flexibility, tensile cord support, and stress distribution. Precisely designed and spaced notches help to evenly distribute stress forces as the belt bends, thereby v belt china assisting to prevent undercord cracking and extending belt life.

Like their synchronous belt cousins, V-belts have undergone tremendous technological development since their invention by John Gates in 1917. New synthetic rubber substances, cover materials, construction methods, tensile cord advancements, and cross-section profiles have resulted in an often confusing array of V-belts that are highly application particular and deliver vastly different degrees of performance.
Unlike smooth belts, which rely solely on friction and can track and slip off pulleys, V-belts have sidewalls that fit into corresponding sheave grooves, providing additional surface area and greater balance. As belts operate, belt tension applies a wedging power perpendicular with their tops, pressing their sidewalls against the sides of the sheave grooves, which multiplies frictional forces that allow the drive to transmit higher loads. How a V-belt fits into the groove of the sheave while operating under stress impacts its performance.
V-belts are produced from rubber or synthetic rubber stocks, so they possess the versatility to bend around the sheaves in drive systems. Fabric materials of various kinds may cover the share material to provide a layer of protection and reinforcement.
V-belts are manufactured in a variety of industry regular cross-sections, or profiles
The classical V-belt profile dates back to industry standards developed in the 1930s. Belts manufactured with this profile can be found in a number of sizes (A, B, C, D, Electronic) and lengths, and so are widely used to replace V-belts in old, existing applications.
They are used to replace belts on industrial machinery manufactured in other parts of the world.
All the V-belt types noted above are typically available from manufacturers in “notched” or “cogged” variations. Notches reduce bending tension, enabling the belt to wrap more easily around little diameter pulleys and enabling better temperature dissipation. Excessive high temperature is a major contributor to premature belt failure.

Wrapped belts have an increased resistance to oils and extreme temps. They can be utilized as friction clutches during set up.
Raw edge type v-belts are better, generate less heat, enable smaller pulley diameters, increase power ratings, and provide longer life.
V-belts appear to be relatively benign and simple devices. Just measure the best width and circumference, find another belt with the same sizes, and slap it on the drive. There’s only 1 problem: that strategy is about as wrong as possible get.

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