which 1 to buy? I bought it in 1989 and it is a 5 hp A. O. Smith. Found a couple online, Man are they expensive. Going to have this 1 rebuild for spare for my other comp. Just want to get 1 put back on asap. Any suggestions?
compressor electric motor bad
- Thread starter rbkt65
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You're going to buy a new motor and "rebuild" your old 5HP motor to have as a spare? I don't know about prices where you are, but that wouldn't make any sense at all down here.
my old one was 40 years old ...how much more do you need
I had a 1/2 HP motor off of my dad's Rockwell drill press rewound about 10-years ago because we could not find a replacement with the correct frame.
It had aluminum start windings and copper run windings, but the armature was in wound in the middle 1/3.
They rewound it with copper starts and wound 2/3 of the armature, so now it has twice the torque than before.
It cost me $350 back them, but to still have the correct motor and more power was worth it to me.
Tom
It had aluminum start windings and copper run windings, but the armature was in wound in the middle 1/3.
They rewound it with copper starts and wound 2/3 of the armature, so now it has twice the torque than before.
It cost me $350 back them, but to still have the correct motor and more power was worth it to me.
Tom
My go to place for motors. New take offs.
Air Compressor Motors | AC Single Phase Motors | Electric Motors | www.surpluscenter.com
Air Compressor Motors,AC Single Phase Motors,Electric Motors, 3 HP SPL 3480 RPM 208/230 VAC COMPRESSOR DUTY MOTOR Brand new, WEG model#
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jeff alder
Well-Known Member
The rule of thumb was $100 per horsepower complete rebuild cost vs new. As said if it is just bearings and you do it yourself Cheap. Our shop recycles pretty much everything 5 horse and below unless it's just bearings. It's generally cheaper to buy a new low horsepower motor.
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Baldor is a good brand. This may not be what you need but get one specifically made for air compressors.
6PakBee
Well-Known Member
I went through this a few years ago. What is the typical motor class for a compressor? Open Drip Proof (ODP). What usually dies on an ODP single phase integral HP motor? The starting switch. What does it die from? Air-borne contaminants.
As a shop is always dusty, against the advice of everyone , I went with a TEFC (Totally Enclosed Fan Cooled) motor to protect the starting switch. So far so good.
As a shop is always dusty, against the advice of everyone , I went with a TEFC (Totally Enclosed Fan Cooled) motor to protect the starting switch. So far so good.
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