Compare with the chart below.
M section v belt sizes.
Also keep in mind belts do stretch and unfortunately there is no specific given value for how much a belt can stretche.
V belts are the most commonly selected belts for power transmission.
Step 2 determine if the v belt is wrapped or notched style if the belt you have is notched add an x to the type.
The v shape of the belt tracks in a groove on a pulley or sheave.
Measure the section with a ruler measure the top width of the belt widest part of the vee and then the thickness of the belt.
Classic v belt numbers start with a letter identifying the cross section a through e see v belt dimensions below.
What section is your v belt.
You can also use our browning belt rule that includes a gauge to help easily identify belt type.
A series belts are the most common.
The belts are generally endless and their general cross section shape is trapezoidal or v shaped.
Click here for more complete specifications per belt section.
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.
There are three common v belt types.
3v section 3 8 width 5v section 5 8 width 8v section 1 width 3vx section cogged 3 8 width 5vx section cogged 5 8 width double angle v belts.
If you identified a b.
Classic banded v belts.
Classic kevlar v belt sections.
3l section 3 8 width x 7 32 depth.
The types of v belts and their standard sizes.
Aa section dbl.
You ll also need to measure the width and depth to determine which section v belt you have.
The correct section is.
As another example replacing an older classical v belt drive with a newer narrow profile notched v belt made with an ethylene elastomer and aramid fiber tensile cords can yield up to 3x greater load carrying capacity while reducing the weight and size of the drive relieving stress on shafts bearings and other components.
The inside length of the belt is typically 2 less for a 4l belt and 1 1 2 less for a 3l belt.
V belts provide the best combination of traction speed transfer drive load distribution and long service life.
Example a v belt with a top width of 21 32 and a depth of 7 16 is a b belt.
As power transmission experts for over a century gates is driving your vehicles belt drive with our automotive v belts for your passenger cars light duty trucks and personal vehicles.
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.
A section 1 2 width b section 5 8 width c section 7 8 width d section 1 1 4 width bx section cogged 5 8 width wedge banded v belts.
An example would be 4l460 which would be 46 long outside 44 inside.