Quote:
Originally Posted by Joey Milia
I don't have the high speed camera to investigate this but I'd be curious if this was the belt stretching or a combination of, pulley shafts deflecting under high load, the teeth on the opposite pulley compressing, and the teeth on the skipping pulley compressing and bending. The way the belt is constructed I'd be much less surprised if it was the neoprene teeth deforming rather than the fiberglass tensile member stretching. I don't think they stretch much (more then negligibly) before failing but I don't know the exact numbers (elongation at break) on that.
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In your belt runs, do you add anything to the nominal C-C distance? We had designed in about a 0.002 in our shooter belt (3mm GT3 belt), but since it was waterjet out, I can't be certain it held to .002 anyway. Regardless, it worked out fine for us. I've just noticed the west coast products calculator adds a bit.