When we want to transfer power from one shaft to another, we use power transmission devices, such as belts, chains and gears. In today’s article we will discuss a highly flexible and efficient power transmission device known as V belt. V belts get their name from their trapezoidal shape, which helps them wedge into the sheaves.

Twisted synthetic fibrous tensile chords, compressed by synthetic rubber, form a typical V belt, rendering it strength and flexibility. To break the bending resistance even further, to keep the operation temperature lower, and to give higher capacity, V belts come in cogged construction as well. As opposed to chains, V belts do not require lubrication or maintenance. They also solve the slippage and alignment problems.

The types of V belts and their standard sizes:

There are three common V belt types: Classical V belt (classified by their dimensions from A to E), Narrow V series (classified by their dimensions 3V, 5V, and 8V), and light duty Fractional Horsepower belt (classified by their dimensions 2L, 3L, 4L, 5L). Their counterpart cogged belt is classified by the letter X. For example, Classical V cog belt will be 3VX, 5VX, etc.

This article comes from hvhindustrial edit released