The most common systems for transmitting power from a drive to a driven shaft are belt, gear, and chain drives. But V-belt drive systems, also called friction drives (because power can be transmitted consequently of the belt’s adherence to the pulley) are a cost-effective option for industrial, auto, commercial, agricultural, and house appliance applications. V-belt drives are also simple to install, require no lubrication, and dampen shock load.
Here’s the catch: Standard friction drives may both slide and creep, leading to inexact velocity ratios or degraded timing precision between input and output shafts. Because of this, it is essential to choose a belt appropriate for the application accessible.
Belt drives are among the earliest power transmission systems and were trusted during the Industrial Revolution. Then, smooth belts conveyed power over large distances and were made from leather. Later, demands for more powerful machinery, and the growth of large markets like the automobile industry spurred new belt designs. V-belts, with a trapezoidal or V shape, made of rubber, neoprene, and urethane synthetic materials, replaced smooth belts. Now, the increased overall surface material of contemporary belts adheres to v belt china pulley grooves through friction pressure, to lessen the tension necessary to transmit torque. The very best section of the belt, known as the strain or insulation section, contains fiber cords for improved strength since it carries the load of traction push. It helps hold tension members set up and functions as a binder for better adhesion between cords and other sections. In this manner, heat build-up is reduced, extending belt life.
We’ve designed our V-belts for wear, corrosion, and heat resistance with OE quality fit and construction for reliable, long-long lasting performance.
V-Belts are the most common type of drive belt used for power transmission. Their primary function can be to transmit power from a major source, like a engine, to a second driven unit. They provide the best mixture of traction, velocity transfer, load distribution, and extended service life. Most are unlimited and their cross section is certainly trapezoidal or “V” designed. The “V” shape of the belt tracks in a similarly shaped groove on a pulley or sheave. The v-belt wedges in to the groove as the load raises creating power distribution and torque. V-belts are generally made of rubber or polymer or there may be fibers embedded for added power and reinforcement.
V-belts are generally within two construction classes: envelope (wrapped) and raw advantage.

Wrapped belts have an increased resistance to oils and severe temperatures. They can be utilized as friction clutches during start 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 appear to be relatively benign and basic pieces of equipment. Just measure the top 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 you can get.