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Thread: Bearing replacement in pump motor

  1. Back To Top    #1

    Join Date
    May 2008
    Location
    Des Moines, IA
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    16

    Bearing replacement in pump motor

    I know not everyone is of a mind to rebuild a pump motor, but I can do the work and the bearings were $17 at the local bearing house. That makes it pretty affordable in my book. It's a Sta-Rite above ground filter with AO Smith #48 frame, 1hp motor. I do have a question, however. I've put a puller on the end of the motor shaft to push the bearing out of the end plate and put as much pressure on it as I feel comfortable with but no luck. Peering between the fan and end plate there appears to be a bearing retainer that's fastened with a small screw through the end plate. Is that the case, and if so how do you get the thing back in place once it's removed? Oh, I'm also soaking the shaft overnight with some penetrant to make sure it isn't just stuck.
    Inground 14'x28'x4' flat bottom kidney Vinyl
    Dynamo 1hp - Pac Fab TA-40 Sand filter 1-Skimmer 2-Jets 1 bottom Main Drain
    10,500 gallons

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    22,347

    Re: Bearing replacement in pump motor

    I've never seen a screw retainer on that type motor. I'm not saying it's not possible but I've never seen it. Most of the times when there's a retainer it's a snap ring.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3

    Join Date
    May 2008
    Location
    Des Moines, IA
    Posts
    16

    Re: Bearing replacement in pump motor

    Thanks. I wasn't sure what that is and it's hard to get a good enough view. Hopefully after a night soaking in penetrant the bearing will come off the shaft and I can get a better look. As an alternative I might carefully apply a little heat round the outside of the bearing. Carefully because the the fan is plastic and the end cover is aluminum. Patience will get it to move better than brute force. Last night I applied enough pressure with a 3 jaw puller to flex the cover, any more and I fear breaking it.
    Inground 14'x28'x4' flat bottom kidney Vinyl
    Dynamo 1hp - Pac Fab TA-40 Sand filter 1-Skimmer 2-Jets 1 bottom Main Drain
    10,500 gallons

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