|Forum topic by luthierwnc||posted 06-05-2016 06:59 PM||314 views||0 times favorited||3 replies|
06-05-2016 06:59 PM
I have a spare motor that I took off my 1957 Rockwell drill press when I went to a 3-phase VFD. It is the original motor and is rated at 1/2 HP at 1750 RPM. I disassembled and cleaned it and replaced the main bearings. The motor has usable shafts on both ends and I already have the arbor attachments. It runs very quietly (always did) and I think it might make a good slow-speed grinder. I already have a high-speed one but the slower version might be handy for tempered steel.
At any rate, I really don’t know how to assess the power. Horsepower standards seem to vary among manufacturers for more-or-less the same motor. I’m guessing a US-made model from 1957 is probably close to spec.
If it can handle it, I’d like to put a medium-grit 1” X 8” wheel on one side and a buffing wheel on the other.
If anyone has thoughts on the capacity, I’d love to hear them. Thanks, sh