If you measure the outer circumference, then you would subtract the number of inches based on the section you have (Listed below) to obtain the v belt number. This is also the same for the banded belts. Measure each individual band for banded belts to obtain the correct width. Examples of how belt numbers are coded per section:
How Do You Measure V-Belts? There are different methods of measuring V-belts that depend on the type of tool being used. To measure a V-belt, the belt first needs to be marked with a start/finish measurement point. A flexible cloth-like tape measure can be held at the start/finish point and wound all the way around.
Correct Way to Measure V Belts by C.L. Rease . Determining the exact length of a V belt with a mathematical equation becomes confusing. This holds especially true when measuring the length of a V belt running between two pulleys with different diameters and do not have experience using calibers to measure the diameter of the drive pulleys ...
Alternatively, you may measure at the fold, or where the buckle meets the leather, to the hole that you currently use. That is the size belt you need to order. If it is an odd number, round up to the next even number. The rest of the belt is not considered for measurement purposes. "do not include the buckle length in your measurement".
Belt Length Calculator (i.e., Belt Cut Length Calculator) Method One: Use when belt's ID, OD, IC, or OC are known. Do NOT use on used belts because they are permanently stretched.
Belt Drive Monthly Volume 22• May 2010 Identifying a replacement belt is something you can do quite easily and quickly. The informatin below details the process. How Can I Identify The Correct V-Belt Type When The Belt Is Broken Or No Longer Labeled?
D Size v-belts 225 & up Nominal Length = Inside length + 2.5" / Outside Circumference = Nominal length + 2.5" 3L, 3V, 4L, 5L, 5V, 5VX & 8V Size v-belts Nominal length = Outside Circumference in inches and tenths. Please contact us for metric or english v-belt sizing if you are unsure, we have a 25% restocking fee.
V-belts (also known as Vee belt or wedge rope) are an early solution that solved the slippage and alignment problem. V-belt is the rubber belt that drives things such as the alternator, air conditioning compressor, power steering pump and waterpump.