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Thread: Stuck rub collar on shaper spindle

  1. #1

    Stuck rub collar on shaper spindle

    So at the shop Iím at we have a Unique Shape and Sand that is used for raised panels. The Unique is probably the best shaper in the shop, I canít feel any chatter at all after a panel has been cut before it is sanded. I believe the Unique came with a rub collar for shaping raised panels, but it doesnít look like itís supposed to be attached to the spindle as there are two spacers below the rub collar. The rub collar itself is completely shot, it didnít turn at all until I tried prying it off yesterday. Now it sort of clicks when you hand turn it. The shaper spindle is 1 1/4Ē and is at a fixed height, so I canít put a piece of wood under the collar and lower the spindle. I tried looking inside the machine to see how to take off the spindle to get a better grip on it, but have no idea where to start. Iíd like to be able to take off the rub collar so I can use different cutter heads on it. Any help is appreciated!


    Side Note: I noticed the Ribbed drive belt likes to travel down so itís about half off the pulley but doesnít move after that. Is there a way to calibrate it so it stays fully on the pulley?


  2. #2
    Quote Originally Posted by Jaren Johnson View Post
    [FONT="][FONT="]So at the shop Iím at we have a Unique Shape and Sand that is used for raised panels. The Unique is probably the best shaper in the shop, I canít feel any chatter at all after a panel has been cut before it is sanded. I believe the Unique came with a rub collar for shaping raised panels, but it doesnít look like itís supposed to be attached to the spindle as there are two spacers below the rub collar. The rub collar itself is completely shot, it didnít turn at all until I tried prying it off yesterday. Now it sort of clicks when you hand turn it. The shaper spindle is 1 1/4Ē and is at a fixed height, so I canít put a piece of wood under the collar and lower the spindle. I tried looking inside the machine to see how to take off the spindle to get a better grip on it, but have no idea where to start. Iíd like to be able to take off the rub collar so I can use different cutter heads on it. Any help is appreciated![/FONT][/FONT]
    [FONT="][FONT="][/FONT]
    [/FONT]

    [FONT="][FONT="]Side Note: I noticed the Ribbed drive belt likes to travel down so itís about half off the pulley but doesnít move after that. Is there a way to calibrate it so it stays fully on the pulley? [/FONT][/FONT]

    It may be that someone installed your rub collar incorrectly if it is a bearing type rub collar. My experience with bearing rub collars is that you need a spacer above and below the bearing so the pressure from the cutter and retaining nut is applied to the inner race only. If the pressure is applied to the outer race, the collar won't turn. If you are getting clicking now, most likely you will need a new bearing.

    Belts migrating are usually caused by misalignment of the shafts or the pulleys. If the motor shaft is tilted relative to the arbor shaft the belt is going to try to move.
    Lee Schierer
    USNA- '71
    Captain USN(Ret)

    My advice, comments and suggestions are free, but it costs money to run the site. If you found something of value here please give a little something back by becoming a contributor! Contribute

  3. #3
    We do use a spacer above and below the bearing rub collar. According to my dad, who also works at the same place as me, when they first got the Unique they forgot to tighten the nut, so the rub collar has been stuck there ever since about 15 years ago.

  4. #4
    Join Date
    Dec 2008
    Location
    WV
    Posts
    2,780
    Sometimes with finicky cutters if you can raise the spindle enough to get something below the finicky item then lower the spindle to drive the cutter/collar off. I'm not familiar with the shape and sand but have used this method many times.
    Sometimes I just want to look at pretty pictures,... Thats when I go to the Turners Forum

  5. #5
    Death wheel in a angle grinder to remove what you can. Then a die grinder to get the rest.

    Don't hit the spindle....

    Unless you can get a puller on it, which I doubt.

  6. #6
    Join Date
    Sep 2016
    Location
    Modesto, CA, USA
    Posts
    1,310
    Can you get some wood under the collar and use a crowbar or wonderbar to slide it up? maybe a bearing splitter to give the pry bar something to pry against. Or use the bearing splitter with the forcing bar like it is supposed to be used. Using pry bar risks bending the spindle.
    Bill D

  7. #7
    Quote Originally Posted by Jaren Johnson View Post
    We do use a spacer above and below the bearing rub collar. According to my dad, who also works at the same place as me, when they first got the Unique they forgot to tighten the nut, so the rub collar has been stuck there ever since about 15 years ago.
    Hoo boy......so it's likely bearing may have welded to the spindle. Try Mark Bolton's method first and if that fails, Martin Wasner's idea. The possiblity of adding some heat to the inner race could help significantly, too!

  8. #8
    Join Date
    May 2014
    Location
    Grassy Lake Alberta
    Posts
    432
    I have not been in this position yet.. However I do play with metal quite a bit. you have an 1 1/4 spindle with a much smaller bearing stuck on it, give it some heat, the spindle will take a lot longer to get hot than the bearing. I would try this first . Good luck,Mike. p.s. Let us know how this turns out .

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