My big one is 235mm diameter and maxes out at 6000rpm, but the smaller one is 165mm and will go up to 7500RPM.
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My big one is 235mm diameter and maxes out at 6000rpm, but the smaller one is 165mm and will go up to 7500RPM.
Mark
No, I don't think you're missing anything. Those/these, cutters are 100mm cutters, maybe 115mm. Small by commercial standards.
I have some Amana groovers, and they're 100mm dia, The Freeborn and Bosch cabinet sets I have are just over 75mm dia. I have a bunch of profile cutters at 55-60mm.dia. The Amana reversible glue joint I have is probably 60-65mm. Theses are all brazed and top out 9K-10Krpm max.
The panel raisers I have are 115-120mm, and those are definitely not spinning at 10K.I run them at 7K. Generally my machine is set to run at 7K. It only has two speeds, 7K and 10K rpm.
I think that's about all my shaper, 3HP Delta 43-375, can be expected to handle. Anything bigger, or heavier, is going to have be aluminum.If it's steel, that's a lot of rotating mass, which is going to wear out those light duty spindle bearing prematurely.
Mass isn't going to wear out the spindle bearings. Not being in perfect balance will though.