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 known as friction drives (because power is usually transmitted as a result of the belt’s adherence to the pulley) are an economical option for industrial, automotive, commercial, agricultural, and house appliance applications. V-belt drives are also easy to install, need no lubrication, and dampen shock load.
Here’s the catch: Regular friction drives can both slip and creep, leading to inexact velocity ratios or degraded timing precision between input and output shafts. For this reason, it is essential to choose a belt appropriate for the application at hand.
Belt drives are one of the earliest power transmitting systems and were widely used through the Industrial Revolution. Then, smooth belts conveyed power over huge distances and were made from leather. Later, demands for more powerful machinery, and the development of large markets such as the automobile market spurred new belt designs. V-belts, with a trapezoidal or V shape, manufactured from rubber, neoprene, and urethane synthetic materials, replaced smooth belts. Now, the improved overall surface material of contemporary belts adheres to pulley grooves through friction drive, to lessen the tension required to transmit torque. The top section of the belt, known as the strain or insulation section, contains fiber cords for increased strength as it carries the strain of traction force. It helps hold tension members set up and acts as a binder for greater adhesion between cords and various other sections. In this manner, heat build-up is decreased, extending belt life.
We’ve designed our V-belts for wear, corrosion, and heat level of resistance with OE quality match and structure for reliable, long-env belt china during performance.
V-Belts are the most common type of drive belt used for power transmission. Their primary function is usually to transmit power from a primary source, just like a engine, to a second driven unit. They offer the best mixture of traction, velocity transfer, load distribution, and extended service life. Most are countless and their cross section is definitely trapezoidal or “V” formed. The “V” form of the belt tracks in a similarly formed 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 found in two construction categories: envelope (wrapped) and raw advantage.

Wrapped belts have an increased resistance to oils and intense temperature ranges. They can be utilized as friction clutches during start up.
Raw edge type v-belts are better, generate less heat, allow for smaller pulley diameters, enhance 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, discover another belt with the same dimensions, and slap it on the drive. There’s only one problem: that strategy is about as wrong as you can get.