V Belt Identifier

How to identify and measure what V belt you have or need? If you need help Finding a V belt you are in the right place, following the instructions below you should quickly and easily find exactly what it is you are looking for:

Do you need help identifying or measuring what belt you have and in what size? Not sure what size belt you require for the pulley you have. This page will help you to identify what belt you have and how to measure your belt to identify what style (section) it is and what length it is. 

How to measure the belt:

You will notice that all V belts also sometimes referred to as wedge shaped belts are measured across the top think section and the depth of the belt. This means you would measure the widest part of the belt (thick section) and then from the widest part to the narrowest part of the belt. Please refer to the images below noting where the measurements are taken.

V belt Measuring Guide


The different types or sections of V belt are measured slightly differently when it comes to their length. Z, A, B, C, D, E section V belts are measured with an internal length, and the SPZ, SPA, SPB, SPC and the XPZ, XPA, XPB, and XPC section V belts are measured externally including cog section V belts (which are toothed and denoted with an X) and this is clearly demarcated when clicking through the different belt sections but an example of this is below (noting A section is measured internally and SPZ externally).

A section V belt SPZ section v belt

So once you have identified what section of belt you require, click on that section and each belt in the category will be clearly labelled with either an internal or external length measurement. 

If you still can't Identify which belt you have then simply get in touch with our sales team Sales@bearingtech.co.uk and we will be able to identify it for you. 

 Please Click Here for Technical Specifications for Megadyne belts