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1> Industrial sprockets are only static balanced to approx 6000 ft/min
2> and are very heavy material.
3> past that 6000 ft/min... high probability of balance issues... can be dynamically balanced
4> 8M-25S-36PB would be 6550.221 ft/min
5> just a pilot hole
6> 8m-50S-36 would be 13116.15 ft/min
7> 1360-8m HTD belt will NOT work in those sprockets.
8> not an off the shelf belt... may be distributurs that have this
9> MTO department
,,,
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As you said, some of this discussion may be "beneficial to all", therefore:
1> My belt speed at 9,500 RPM will be just 16% over Gates balance speed (~6,900 FPM).
2> Weight (and polar inertia) are of little consequence here.
3> I'll be having all rotating pieces balanced anyway (see 5>).
4> My 6,900 FPM is only 6% over that.
5> Since I'll be machining custom hubs for all three sprockets, the existing bores are of no concern.
6> My 6,900 FPM is well under 13,116.
7> 'Not work' in what respect? Geometry (tooth profiles, etc.)? Suitability for load/speed? Durability? Minimum sprocket radii?
8> Will Gates Corporation help me by identifying those distributors for whom they manufactured the parts I found listed?
9> What is 'MTO'?
If you'd rather not discuss this "publicly", that's fine- just let me know.