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Forum topic by adr906 posted 05-27-2018 02:14 PM 330 views 0 times favorited 7 replies Add to Favorites Watch
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adr906

10 posts in 187 days


05-27-2018 02:14 PM

I am working on replacing the motor bearings on my 9” Craftsman RAS (model 113.29330). I am trying to get the “nut” off the shaft so I can get the bearing off that is behind it. I’m thinking the “nut” may be pressed on instead of having threads. Does anyone have experience this? See the pictures below. Thank you.


7 replies so far

View mrg's profile

mrg

828 posts in 3084 days


#1 posted 05-27-2018 02:42 PM

Try some PB Blaster and cover the threads with a rag and put the part in a vise and see if the nut comes off by turning it whichever way you take the blade nut off. The reason I say that is i am not sure which way your blade nut tightens. Everything would be threaded the same so nothing undoes itself when running.

-- mrg

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Woodknack

12242 posts in 2465 days


#2 posted 05-27-2018 04:29 PM

Threads stop well short of the nut so it would have to press fit unless it’s threaded from the other direction.

-- Rick M, http://thewoodknack.blogspot.com/

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LesB

1791 posts in 3528 days


#3 posted 05-27-2018 05:06 PM

I replaced my bearings several years ago but I don’t recall having a problem. Because yours looks like a nut I have to thing it is threaded on, obviously with a larger thread than the blade nut uses. It is probably threaded the same direction as the blade nut. Your problem is holding the shaft stationary without damaging it while you break the bearing nut loose. Two nuts tightened together on the blade portion of the shaft may work. Penetrating fluid and or heat may help loosen the nut.

You may still need some sort of bearing puller to get the bearing off. As I recall the bearing was a “standard” size available at most places that sell bearings….I think it was the same size as one I use on my lawnmower blade shaft.

-- Les B, Oregon

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adr906

10 posts in 187 days


#4 posted 05-27-2018 06:01 PM

I used a deep well socket and an impact gun, the nut will turn on the shaft but doesnt loosen or tighten. I think its pressed on. Im gonna see if i can get it off with a bearing puller (once i get one).

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MrUnix

6846 posts in 2284 days


#5 posted 05-27-2018 06:27 PM

I can’t see how that could be threaded on as the threads for it would interfere with removal of the bearing. And if you can spin it and it doesn’t move forward or backwards, then I think you are probably correct that it is a press fit – although that is a strange arrangement for sure. Without a puller or splitter, you can try placing the nut in the jaws of a vice with the rotor hanging down, then gently tap on the end of the threaded shaft with a wooden mallet or soft blow hammer. The bearing can be removed the same way.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View adr906's profile

adr906

10 posts in 187 days


#6 posted 07-15-2018 05:07 PM

Just in case anyone was wondering, it was pressed on. I got it off with a bearing puller. Thanks for the help everyone.

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HerbC

1782 posts in 2944 days


#7 posted 07-15-2018 05:32 PM

Thanks for the follow up.

Herb

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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