Any electric motor rebuilders out there?

[cowboy73]

Well, a few months back I started a thread about my Baldor grinder getting pretty hot after it was running. I took it apart and this is what I found.


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The windings are burnt and the leads are all melted. This part of the motor appears to be in good condition.

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So does anybody out there rebuild electric motors? Or have you had one done recently and what did it cost? Is this thing toast? If it's done for I might sell off the guards and tool rests. Thanks for any info in advance.

 

[gibbon_guy]

John Julian and Son in Renton, WA rebuild motors. There was a sticker with their info on my L1410T that just died. I used baldor.com's locator service and found a local place with a L1430T in stock because the other place was closed for vacation this past week I presume.

http://www.baldor.com/support/service_centers/locator/svc_centers_mtr_search.asp

 

[Packard V8]

Let us know what you find, but here in Spokane, no small motor is economically cost effective to rebuild. There were three shops which did small motor rebuilding. One went TU, the other got so big they don't do small motors any more and the other only does specialty work.

jack vines

 

[RCStocker]

There was a company near me that did it for almost 100 years. They closed thier doors.
A couple of years back I looked them up on the web and found several in the mid west that were very good.
The only thing is that it cost more to rewind a moter than to buy a new one in most case.
If you have a moter that is special to a product and can not find another one then I would spend the money to have a motor rewound.
It can cost more for shipping than a new moter depending on the size and type. I have had some rewound. I rewind Lionel train engine moters all the time. They have special machines that do it perfectly. Small moters are easy but larger ones take forever. Can you buy an armature replacement?

You can buy a good use Balder buffer or grinder for less than it would cost to have it rewound.
I picked up a 10 inch Balder grinder on a supper heavy duty stand for $160. The stand alone is $260. The grinder is about $900. I have found smaller 6 and 8 inche ones for under $80. I passe up one several monts ago at the swap meet and I think it was $45.

 

[Alan Douglas]

I worked summers in a motor repair shop in the 1960s; probably rewound several hundred motors in that time. Even back then, small tool and fractional-HP motors weren't normally worth the cost to rewind.

 

[theoldwizard1]

Small motor (What does the industry consider small ? How about all the 12V DC motors in cars ?) is a high automated manufacturing process. Fairly little hand work.

Many times manufacturing machinery is built to make only a small number of different size motors (the opposite of flexible manufacturing). Keeps the machinery cost down and the part/hour up.

Also, there has been very little innovation in motors, except for the introduction of rare earth magnets in DC motors several years back. Most of the basic designed go back to the 1920s !

 

[CJKaz]

Typically in industrial applications anything less than 50 hp is typically not economical to rewind. Labor intensive to burn out, strip, insulate & make coils. Although I did pay $5.000 to have a unique & obsolete 1 hp motor rewound. Would have delayed startup of a $1MM/day plant, worth it.

 

[TheGrooveking]

Driesilker motors in Glen Ellyn Illinois is one of the top motor rebuilders in the country. We used to send all kind exotic motors from rare equipment and they did them all with top quality.

The Grooveking

 

[Davefr]

Your image of the stator is pretty blurry and hard to see any detail. Are you sure it's fried?

Measure the resistance from common to start and common to run and from each lead to the iron core.

I'm wondering if the starting circuit is not disengaging. That would really heat up the motor!!

Fried stators are just not that common. Were the bearings in good shape?

 

[Rtw5150]

Driesilker motors in Glen Ellyn Illinois is one of the top motor rebuilders in the country. We used to send all kind exotic motors from rare equipment and they did them all with top quality.

The Grooveking

I second that, except we go to their Alsip, IL location.
Great people, great service.

 

[Bob C]

Your image of the stator is pretty blurry and hard to see any detail. Are you sure it's fried?

Measure the resistance from common to start and common to run and from each lead to the iron core.

I'm wondering if the starting circuit is not disengaging. That would really heat up the motor!!

Fried stators are just not that common. Were the bearings in good shape?

It's toast. Look at the 6 to 7 oclock position.

 

[coolreed]

Buy a new motor as it will cost you more to rebuild it than to buy a new one.

Sorry but that's how it is.