V-belt-pencil-gauge
This tensioning method relies on a Pencil Gauge
Tool and the mathematical standards laid out in this V-belt tensioning table.
- Measure the span length “K” of your drive (See Figure 1).
- Slide the large O-ring to the recommended deflection distance on the scale and slide the small O-ring up against the barrel of the gauge as shown in Figure 2.
- Place the large end of the tool onto the belt at the center of the span. Apply a sufficient force to deflect the belt until the large O-ring is in-line with the other belts. If this is a single-belt drive, use a straight-edge or taught string for a “starting point” reference.
- Then, release the pressure and read the deflection force from the position of the small O-ring on the plunger scale as shown in Figure 2.
- Compare this force with the value given in the V-belt tensioning table. If the force is below the recommended value, increase the drive center distance to provide greater belt tension.
- Reduce the center distance if there is too much force.
- For example, for a 100″ span, the deflection would be 100/64″, or approximately, 1½”.
I have
researched some material for you to download and add to your industrial maintenance
library. Here is four very good PDF’s that I found that will greatly assist you
in the future when it comes to your v-belt maintenance and performance!!
If any of
these PDF’s happens to go 404 error when looking then up, please let me know
and I can email them to you.
As you
read this week’s blog, you now have a better understanding of “V-belts”! REMEMBER, Over-tension of belts is the
number one cause of V-Belt Failure. 10% over-tension of V-Belts result in a
reduction of bearing life by 10%.
In
Conclusion my friends; what are some of this topics that we talked about here
supported your needs? What are some of the challenges in V-belts do you need support
on?
I hope
that this blog supports your needs and delivered good content for you! Please
feel free to leave a comment!
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