v belt

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

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 strategies, tensile cord advancements, and cross-section profiles have resulted in an often confusing array of V-belts that are highly application specific and deliver vastly different levels of performance.
Unlike smooth belts, which rely solely on friction and will track and slide off pulleys, V-belts have sidewalls that match corresponding sheave grooves, offering additional surface and greater stability. As belts operate, belt tension applies a wedging pressure perpendicular to their tops, pressing their sidewalls against the sides of the sheave grooves, which multiplies frictional forces that permit the drive to transmit higher loads. What sort of V-belt fits in to the groove of the sheave while operating under tension impacts its performance.
V-belts are manufactured from rubber or synthetic rubber stocks, so they have the flexibility to bend around the sheaves in drive systems. Fabric materials of varied kinds may cover the stock material to provide a layer of security and reinforcement.
V-belts are manufactured in a variety of industry standard cross-sections, or profiles
The classical V-belt profile goes back to industry standards created in the 1930s. Belts manufactured with this profile can be found in several sizes (A, B, C, D, Electronic) and lengths, and are widely used to displace V-belts in older, existing applications.
They are used to replace belts on industrial machinery manufactured in other areas of the world.
All of the V-belt types noted over are typically available from producers in “notched” or “cogged” variations. Notches reduce bending tension, enabling the belt to wrap more easily around small diameter pulleys and permitting better temperature dissipation. Excessive high temperature is a major contributor to premature belt failure.

Wrapped belts have a higher resistance to oils and severe temperatures. They can be utilized as friction clutches during set up.
Raw edge type v-belts are more efficient, generate less heat, allow for smaller pulley diameters, boost power ratings, and provide longer life.
V-belts look like relatively benign and basic devices. Just measure the top width and circumference, find another belt with the same dimensions, and slap it on the drive. There’s only one problem: that strategy is approximately as wrong as you can get.