V-belt/A-type (standard) 100-130 inches

Among the belts used as a means of power transmission, the most widely used is the V-shaped cross section belt.

Compared to ordinary flat belts, it has higher friction, less slippage and greater transmission power.

They are used in a wide range of industrial machinery, from light-load to heavy-load electric machines, as well as home appliances, motorcycles , automobiles, and agricultural machinery. Thinner belts are easier to bend.

There are four types of V-belt cross sections: A, B, M, and K. Please refer to the diagram below.

<How to read the part number>

In the case of A20 ,

A is the cross-sectional shape of the belt

Effective pitch circumference: 20 inches (50.8 cm)

It represents:

< How to measure belt length>

Measure along the midpoint of the inner circumference of the belt (measure on the outer circumference only for M-type).

The length of the belt is the same across all manufacturers.

<Formula for calculating length>

Effective belt pitch = center distance x 2 + π x V-groove pulley pitch diameter