I already googled and came up empty.
I have a 2.5HP DC motor and controller that I want to put on
my drill press but I can't find a pulley to fit it. The shaft is 17MM
(0.669") by 1" length with an additional section 1/2-13 LHT on
the end. The original treadmill pulley/flywheel takes a flat ribbed belt
which I can't adapt to the DP.
So what to do? Does anyone know of a source for a V-belt(4L)
pulley with a 17MM bore? Alternatively would turning the shaft down
to 5/8 be feasible? Or maybe boring out a 5/8 pulley?
Any suggestions or ideas on how to solve this are welcome.
If the stock pulley bore is too big, you make a collar on a lathe (example:
If the stock pulley bore is too small, you enlarge it on a lathe.
And if just right, then like Goldilocks, you are happy.
I don't own a lathe nor do I know anyone in the Portland OR area with
one. I did find a 43/64 drill bit at my hardware store which is 0.472 or
about 3 thou over. Is it feasible to use it and then use shim stock to take
up the difference? Or am I just begging for a wobbly pulley?
Yes to what Rex says. A drilled hole will not be very round (they're
trilobal, but don't worry about it), and it will be oversize. It will have
other problems. That's why we use a drill to make a rough hole and a boring
tool or a reamer to finish it. A boring tool on a lathe is best.
Dang, I wish I had this many choices in used machines as the OP does in
Contact one of these guys and see if he'll do you a quicky
Or buy a lathe. Some of these look like pretty good deals.
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