How to replace unisaw motor - Page 2
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  1. #21
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    Joe Bergamo at Plaza machinery had Leeson make a batch of 240V single phase Unisaw motors for him. Not sure what happened to Plaza machinery (his site) after his son took over. Doesn't seem to be a website easily available now.

    I bought one from Joe for a friend and installed it. Worked perfectly, but the motor diameter was considerably larger than the 3 phase motor it replaced. Some sheet metal removal was necessary....

    One could find the single phase motor of choice and weld the old brackets on. Going slow, with rests between welds, would ensure that the laminations wouldn't heat up. Could also do the same to another 3 phase 220V motor....

  2. #22
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    Quote Originally Posted by dalmatiangirl61 View Post
    The fact that his existing motor is 575v MIGHT be the point you are over-looking........
    Very true...that's the obvious thing I overlooked.


    Stuart

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  4. #23
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    Yes the 575 volts makes a vfd out of the question.I managed to find an exact aftermarket match motor with the brackets online but it is way out of the price range for what i have into the saw. I want to use the specs from the aftermarket motor and the original motor and weld similar brackets to another used motor of similiar specs. Take a look see what you guy's think. Is there any good priced motor sites were i can get a new/used motors that is close enough to the originals frame i can weld custom brackets on it.
    120997.00 LEESON 2HP UNISAW MOTOR C143C34FB6 G
    motor-specs.jpg

  5. #24
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    Quote Originally Posted by johnoder View Post
    Are any of the Unisaws DIRECT DRIVE? Makes it quite a different task I suppose
    The model I own has three drive belts. That is enough.

  6. #25
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    Quote Originally Posted by bsg View Post
    I have a new single phase direct replacement motor available, I can get the info over the weekend.

    Kevin
    Here's pictures of the motor, it's a 4hp. single phase Leeson motor that was damaged during shipping!
    The motor has some scuffs and the mounting brackets were bent, they will need to be straightened and weld one of the brackets, please see pictures.

    The cheapest price I could fine on this motor is $530, here's a link.

    Leeson Saw Motor, 4 HP, 3450 RPM, 230V 120998.00 | Zoro.com

    I'm asking $250 plus shipping, I'm a half hour from Port Huron/Sarnia border if you would like to pick the motor up in person?

    Kevin

    img_3595.jpgimg_3596.jpgimg_3597.jpg

  7. #26
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    A couple more pictures......
    img_3598.jpgimg_3599.jpgimg_3600.jpg

  8. #27
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    Quote Originally Posted by atomarc View Post
    Man........a static phase converter is so cheap and so easy. The slight loss in HP will never be noticed on a hefty saw like a Delta. Hate to keep beating my drum but it really is a super simple answer to the OP's conundrum..unless I'm missing something obvious, which I've been known to do.

    Stuart
    "A xformer to step up to 575 v ac ?"

  9. #28
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    Hey kavin thanks for getting back with your motor details. I think i will pass and try to find a dual voltage single phase and weld brackets on to fit the saw.Thanks again.

  10. #29
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    A transformer to convert 240 volts up to the required voltage and a vfd will cost more then a single phase motor. A would think the transformer will cost about as much as the motor alone.
    Bil lD


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