In order to calculate the Pitch Length of the belt you must measure the Inside Length Circumference and then ADD a figure depending on section size as listed below. Two methods are provided as follows.
3 Simple Ways To Measure A Pulley Belt Size Wikihow
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How to measure outside circumference of a v belt. Please enter ONE of the following. Effective length is measured at the effective outside diameter of the sheaves pulleys which is the location on the sheave where the grooves top width is measured. Next for A Belts 12 width subtract two-inches from the outside measurement to select the correct V-belt.
To come up with the equivalent 4L size Outside Circumference per section. Quick method for belts with a thin thickness only Press the belt halves together and measure the length and multiply by 2. 01112017 Outside length is measured around the belts outer diameter with no tension but is only an approximation and is not useful for sizing or selection.
Easy To Read V Belt Dimensions. More precise method 1 - Gather two pencils and a thin piece of. Do NOT use on used belts because they are permanently stretched.
If we measured the outside length of a SPA belt and it is measured at La 1518mm. Belts Dimensions Include The Width Depth. A Add 2.
03062020 Use a cloth measuring tape not a steel one and wrap it around the outside of the belt. Middle Pitch Diameter PD. Roll the V belt along the flat surface until the paint mark rolls back to the flat surface.
To be precise you would need to determine if the measurement is taken from the inside length Li or outside length La of the V-Belt. 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. 31082010 V-Belts Combine cross section designation with Outside Circumference OC to the nearest whole number plus a zero to determine Belt Part Number.
Dimensions For Each Type Of V Belt. Enter round belt cross-section diameter V-belt height or flat belt thickness. Use only to duplicate unused belts.
Next well measure the pitch diameter PD this is the measurement that represents the diameter of the belt its self as it rides in the pulley. To belt number Example A88 90. You also use a thin string to take this measurement and place it on a steel tape to get the correct length.
Take the result and multiply by 95 to compensate for belt stretch. Place a second pencil mark on the flat surface to designate the contact point of the paint mark with the flat surface. Next for A Belts 12 width subtract two-inches from the outside measurement to select the correct V-belt.
Measure the distance between the two pencil marks to determine the circumference of the V belt. Top width 5VX belt with 80. 4L belts measure the outside of the belt.
In the highlighted table above we can see that the formula for SPA is La Ld18. 11102011 Each and every application that uses a v-belt needs a certain belt to run properly. How to Measure The Inner Circumference IC is the most difficult to measure.
For example if the outer measurement is 48-inches and you subtract two inches then HSA46 would be the right belt for your fan. 01122011 Add a small cable tie around the v-belt to be measured and use that for marking the start and aligning it to the start marker you taped to the ground. X designates molded notch construction.
Take the measure and interpret it as effective length Lw of the v-belt which it is approximately. 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. How to measure the belt.
Angle Per Style V 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. This step is not necessary if you already know your v-belt size or if the pulley and belt are greatly worn.
Measuring Belt Length without an Existing V Belt Wrap 14 inch. Measure the distance between the two pencil marks to determine the circumference of the V belt. Measuring Belt Length without an Existing V Belt Step 1.
A belts measure the inside of the belt. Roll your v-belt on the ground along the measuring sticks until you went one full circle. Combine cross section plus Inside Circumference IC to determine belt part number.
The first thing you want to do is measure the outside diameter OD of the pulley. There are two measurements that we need to make sure that you get the pr.
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