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 is definitely transmitted as a result of the belt’s adherence to the pulley) are an economical option for industrial, automotive, commercial, agricultural, and home appliance applications. V-belt drives are also simple to install, need no lubrication, and dampen shock load.
Here’s the catch: Standard friction drives can both slip and creep, leading to V Belt 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 at hand.
Belt drives are among the earliest power transmitting systems and were trusted during the Industrial Revolution. Then, flat belts conveyed power over large distances and were made from leather. Later, needs 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 flat belts. Now, the increased overall surface material of contemporary belts adheres to pulley grooves through friction force, to lessen the tension necessary to transmit torque. The top part of the belt, called the tension or insulation section, contains fiber cords for increased strength since it carries the load of traction pressure. It can help hold tension members set up and functions as a binder for higher 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 resistance with OE quality suit and construction for reliable, long-enduring performance.
V-Belts are the most common type of drive belt used for power transmission. Their primary function is definitely to transmit power from a main source, such as a engine, to a second driven unit. They offer the best mixture of traction, quickness transfer, load distribution, and extended service life. Most are limitless and their cross section can be trapezoidal or “V” designed. The “V” form of the belt tracks in a similarly shaped groove on a pulley or sheave. The v-belt wedges in to the groove as the strain raises creating power distribution and torque. V-belts are generally manufactured from rubber or polymer or there may be fibers embedded for added power and reinforcement.
V-belts are generally within two construction groups: envelope (wrapped) and raw edge.
Wrapped belts have an increased level of resistance to oils and severe temperatures. 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, increase 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 1 problem: that strategy is about as wrong as you can get.