The most typical 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, automotive, commercial, agricultural, and home appliance applications. V-belt drives are also easy to install, require no lubrication, and dampen shock load.
Here’s the catch: Standard friction drives can both slip and creep, leading to inexact velocity ratios or degraded timing v belt china precision between input and output shafts. Because of this, it is essential to choose a belt befitting the application at hand.
Belt drives are one of the earliest power tranny systems and were trusted through the Industrial Revolution. Then, toned belts conveyed power over huge distances and were created from leather. Later, demands for better machinery, and the development of large markets such as the automobile sector 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 modern belts adheres to pulley grooves through friction force, to reduce the tension necessary to transmit torque. The top part of the belt, called the tension or insulation section, consists of fiber cords for increased strength since it carries the load of traction drive. It can help hold tension members set up and acts as a binder for better adhesion between cords and additional 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 building for reliable, long-lasting performance.
V-Belts are the most typical type of drive belt used for power transmitting. Their primary function is to transmit power from a main source, like a engine, to a secondary driven unit. They provide the best mixture of traction, rate transfer, load distribution, and extended service life. Most are limitless and their cross section can be trapezoidal or “V” formed. The “V” shape of the belt tracks in a similarly designed groove on a pulley or sheave. The v-belt wedges into the groove as the strain increases creating power distribution and torque. V-belts are commonly manufactured from rubber or polymer or there could be fibers embedded for added power and reinforcement.
V-belts are generally found in two construction groups: envelope (wrapped) and raw edge.
Wrapped belts have an increased resistance to oils and extreme temps. They can be used as friction clutches during start up.
Raw edge type v-belts are more efficient, generate less heat, enable smaller pulley diameters, enhance power ratings, and provide longer life.
V-belts appear to be relatively benign and simple devices. Just measure the top width and circumference, discover another belt with the same sizes, and slap it on the drive. There’s only one problem: that approach is about as wrong as you can get.