| Author |
 Topic Search  Topic Options
|
littlemarv 
Orange Level
Joined: 10 Jun 2013
Location: Wisconsin
Points: 1829
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: Removing a pillow block bearing
Posted: 30 May 2018 at 9:36pm |
As in, how do you? I need to remove this bearing, and reinstall it on a shaft. I am shortening the shaft, so I was able to just cut it off. I removed the collar with the two setscrews, and tried to air hammer the sleeve off the shaft. If nothing else, I can find a piece of pipe and press it off in a hydraulic press. Or am I going at it all wrong? Thanks in advance.
|
|
The mechanic always wins.
B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H
|
 |
|
Sponsored Links
|
|
|
Coke-in-MN
Orange Level Access
Joined: 12 Sep 2009
Location: Afton MN
Points: 41817
|
Post Options
Thanks(0)
Quote Reply
Posted: 30 May 2018 at 9:38pm |
Soak it good with penatrant and then using a press - it should come off - or not !
|
|
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
|
|
Snowvalley Dairy
Orange Level
Joined: 26 Aug 2012
Location: Bangor New York
Points: 295
|
Post Options
Thanks(0)
Quote Reply
Posted: 30 May 2018 at 10:23pm |
|
make sure to polish the shaft with emory cloth or sandpaper. also remove any burrs with a file or grinder then press it off.
|
|
DiyDave
Orange Level Access
Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 53242
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 4:44am |
|
Tried the wax trick, yet?
|
|
klinemar
Orange Level
Joined: 14 Sep 2009
Location: Michigan
Points: 8045
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 6:27am |
|
All of the suggestions are good. The wax trick works much like penetrating oil as long as it penetrates. I have had bearings like these that had been run in haylage that actually welded themselves to the shaft and had to be cut off with the torch because I did not have a press ! Sometimes all you saved was the shaft !
|
|
wfmurray
Orange Level
Joined: 13 Sep 2009
Location: Bostic NC
Points: 1225
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 8:12am |
|
Most likely set screws have made a burr on shaft and you will have to force it over burrs to get off . Penetrating oil may not help much.
|
|
jaybmiller
Orange Level Access
Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 24334
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 8:23am |
my 'cheat' is to take a 4 1/2" angle grinder with a THIN disk on it. Mount pillow block i vice ,clamping the base of the block.Make 2 vertical cuts to ALMOST the shaft. Whack off the 'cut' portion of the block. NOW the shaft may slide out, if not CAREFULLY cut/grind to really close to the shaft. Use hammer to bang out shaft from block. 'dress' the shaft to 'as new' condition. Takes me maybe 1/2hr of reasonably pleasent time to do it this way and no cuts or other booboos on my body.
Jay
|
|
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
|
|
littlemarv
Orange Level
Joined: 10 Jun 2013
Location: Wisconsin
Points: 1829
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 9:19am |
|
Good thread, thanks for the help. I am trying to save the bearing, not the shaft. I'd imagine the bearing is not cheap.
At any rate, soaked it in penetrating oil for a few hours, then found a piece of pipe that just fit over the shaft. The press never even grunted, she just slid right off. Thanks again.
|
|
The mechanic always wins.
B91131, WC23065, WD89101, CA29479, B1, Early B10, HB212, 416H
|
|
Clay
Orange Level
Joined: 11 Sep 2009
Location: Udall, Kansas
Points: 9685
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 11:22am |
Everyone has made excellent suggestions. Clean rust off shaft with abrasive paper. File off high spots. If the end of the shaft has be hit and mushroomed, use of a Dremel or grinder may be necessary. Soak with KROIL. Give it time to work. Go have lunch or come back tomorrow. Use a suitable puller or press. It may be necessary to hit the old bearing. Use a phenolic block or brass drift. Sometimes a punch in an air hammer will do the trick.
|
|
LouSWPA
Orange Level Access
Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24688
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 12:12pm |
|
Dynomite!
|
|
I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
|
|
Coke-in-MN
Orange Level Access
Joined: 12 Sep 2009
Location: Afton MN
Points: 41817
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 8:37pm |
Reminds me of guy I worked with as a mechanic in station (way back) Had a special press for wheel bearings on axle shafts - customers came in and bought a bearing from him and asked to have it pressed on axle as he could not get old bearing off - took into back room - big hammer broke outer bearing race - dull chisel into bearing groove of inner race to remove that - slide new bearing onto shaft - 3' long pipe used as a driver and pound bearing home -
Charge customer for use of special wheel bearing press and special puller and bearing .
|
|
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
|
|
Michael V (NM)
Orange Level Access
Joined: 12 Sep 2009
Location: NM
Points: 2444
|
Post Options
Thanks(0)
Quote Reply
Posted: 31 May 2018 at 9:48pm |
|
What you really need to save is the pillow block...the bearings are relatively cheap to replace...if ya hafta replace the complete unit, that gets $$$$$
|
|
