Trane blower shaft repair
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  1. #1

    Trane blower shaft repair

    Has any one replaced the ends for a hollow shaft in place. Heating the tube and pulling end pieces. Have a shaft that i cannot remove due to its size.

  2. #2
    Join Date
    Feb 2006
    Location
    Atlanta,GA.
    Posts
    858
    its a one piece shaft,the ends are not replacable,I have pulled the shaft and sent it to machine shop before and had them repair end due to lead time on new shaft. if you need to knock a hole in the wall to replace it thats what youre gonna have to do

  3. #3
    Join Date
    Apr 2012
    Location
    Paper Street Soap Company
    Posts
    2,298
    Yup, most likely a wall will need to come down


    I had a similar situation and there is another way to deal with a bad shaft end.

    We had a sleeve machined that increased the diameter of the shaft at our bearing supply house.

    It basically slipped over the bad end, was about 8 inches long and had 3 set screws to lock it down to the old shaft.

    They cut a key way in it and I replaced that bearing with an oversized bearing ( drill new holes ) and a new pulley that was sized for the sleeve.

    It was either that or knock down a load bearing wall.

    I did that repair about 7 years ago and unit is still running.

  4. #4
    Join Date
    Jun 2003
    Location
    Chicago, IL
    Posts
    4,308
    Here's one I did.

    Had a machine shop make this



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  5. #5
    Join Date
    Apr 2012
    Location
    Paper Street Soap Company
    Posts
    2,298
    Quote Originally Posted by craig1 View Post
    Here's one I did.

    Had a machine shop make this



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    Nice. The AHU I worked on had the shaft extending through the wall of the unit with the bearing mounted on the outside of the unit.

    So essentially it was just a sleeve. I replaced the bearing and pulley to fit the bigger shaft.

    So much nicer that cutting holes through sheet rock.

  6. #6
    Join Date
    Jun 2012
    Location
    Queens, New York
    Posts
    66
    Quote Originally Posted by craig1 View Post
    Here's one I did.

    Had a machine shop make this



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    Name:  image-3204379116.jpg
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    You should get a patent on this and sell them.

  7. #7
    Join Date
    Jan 2002
    Location
    Palatine Il.
    Posts
    384
    Craig1, are those bolts being used as set screws, or are they actually drilled through the old shaft?
    Hi, my name is Glenn, and I'm a Toolaholic!

  8. #8
    Join Date
    Nov 2005
    Posts
    574
    I like that.

  9. #9
    Join Date
    Apr 2012
    Location
    Paper Street Soap Company
    Posts
    2,298
    Quote Originally Posted by BillDuffy View Post
    You should get a patent on this and sell them.
    That kind of repair has been around a while. I used it on an old McQuay. Problem is they have to be custom made to your specs.

    The bolts are set screws and usually dont go all the way through.

  10. #10
    Join Date
    Jun 2003
    Location
    Chicago, IL
    Posts
    4,308
    Quote Originally Posted by Glenn Harrison View Post
    Craig1, are those bolts being used as set screws, or are they actually drilled through the old shaft?
    They are being used as set screws.

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