Pulling bearing from shaft?
- Thread starter ourkid2000
- Start date
porschedude996TT
Well-known member
When you have exhausted all possible bearing pullers, you may need to resort to cutting the bearing off by using a right angle grinder. Warning, to touch shaft... Start by cutting outer race off the inner race and then grind it down until it is thin. I may cause the fit to relax or not. Once you get this far you can try to crack the bearing and slide it off. If it is still stubborn, then grind the opposite side and break the bearing in half.
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A press and some creative positioning of angle iron should get that out. If not, you can try some bearing pullers. Again you probably have to get creative because the space behind the bearing is probably smaller than most of the pullers you can find. BTDT. Also don't forget the Kroil or some sort of similar solution. That alone might help.
OP
ourkid2000
Well-known member
I have it soaking in Mouse Milk.......gonna let that sit over night and try it tomorrow.
I have a small puller that I'll try on it. This bearing is being replaced anyways so if its gets damaged its no big deal.
Any tips for getting a new one on? Should I put the bearing in the oven to expand it or anything like that? Seems like a good idea.
I have a small puller that I'll try on it. This bearing is being replaced anyways so if its gets damaged its no big deal.
Any tips for getting a new one on? Should I put the bearing in the oven to expand it or anything like that? Seems like a good idea.
JakeD
Well-known member
When I did my pinion I had success when I heated the bearing and cooled the shaft.
RAYJAY
Well-known member
you will need one of these to pull it you can use all thread if the rods are not long enuf
Bearing Separator and Puller Set
Two of the most widely used 2" and 3" bearing splitters, along with pulling components to safely remove bearings.
* Four sets of hex push-puller legs
* 4" and 5" extension legs
* 6" yoke with center adapter
* Bar-type puller head with 9/16" forcing screw
* Rugged drop-forged construction
Comes with blow mold case.
Shipping weight: 10.8 lbs.
ITEM 93980-AAA
Bearing Separator and Puller Set
Two of the most widely used 2" and 3" bearing splitters, along with pulling components to safely remove bearings.
* Four sets of hex push-puller legs
* 4" and 5" extension legs
* 6" yoke with center adapter
* Bar-type puller head with 9/16" forcing screw
* Rugged drop-forged construction
Comes with blow mold case.
Shipping weight: 10.8 lbs.
ITEM 93980-AAA
jsaw
Well-known member
I have used a small cutoff wheel to cut almost all the way through the bearing, being careful not to knick the shaft.then hit it with an air chisel to crack it. Usually slides right off
Knock on wood, I haven't come across one where I needed heat as yet because I've always used Kroil to get it off, or damaged it with either a BFH (Big Hammer) or cutting wheel. Putting the new one was usually easy. Occasionally, I used a small wire brush to clean up the shaft of corrosion.
CBradio
Well-known member
Will a prybar fit behind it? Try one on one side, and one on the other.
Doozer75
Well-known member
Burn it off.
Fast and easy.
Obviously, don't melt into the shaft.
If you practice, you can easily burn rusted nuts off and not touch the bolt threads.
No problem.
--Doozer
Fast and easy.
Obviously, don't melt into the shaft.
If you practice, you can easily burn rusted nuts off and not touch the bolt threads.
No problem.
--Doozer
kartracer55
Well-known member
- Joined
- Jun 21, 2005
- Messages
- 5,317
Ideally you would use a bearing splitter as posted above. If the shaft is too long, a pair of vise grips to hold the race in place, and slice it on each side to remove outter race and balls, then carefully slice inside. You do not need to slice all the way through the inner race, just get a slice started and use a blunt, but sharp chisel and crack it off.
Jaguar Fan
Well-known member
C'mon guys, the answer is obvious.
Move to Florida & scrap the snowblower.
Move to Florida & scrap the snowblower.
OP
ourkid2000
Well-known member
I got it off........I had mouse milk sitting on it all night and then I heated the bearing with a propane torch as a friend of mine pulled up gently with a prybar. I also had a prybar on it on the other side.
It came pretty easy but kinda got jammed towards the end of the shaft just below the threads of the shaft. Kinda had to smack it a little to finally pop it off. In the process we put a few small nicks in the shaft that I dressed with some emery cloth and scotchbrite.
The nicks are still there but not sticking off so I hope the new bearing will pass by.........what problems could this cause me?
It came pretty easy but kinda got jammed towards the end of the shaft just below the threads of the shaft. Kinda had to smack it a little to finally pop it off. In the process we put a few small nicks in the shaft that I dressed with some emery cloth and scotchbrite.
The nicks are still there but not sticking off so I hope the new bearing will pass by.........what problems could this cause me?
Clean up the shaft, it should be a sliding fit. If there are any collars on there held in place by a set screw, take a file and make a flat spot there so the upset caused by the setscrew is below the surface and out of the way for next time.
OP
ourkid2000
Well-known member
Wow.....I cleaned up the shaft and put the bearing & pulley in the oven for about 20 mins. I then used Cold Spray to cool the shaft.
It all went together so easy! Bearing slid all the way down and pulley went right on too just like butter.
Heat is the key!
It all went together so easy! Bearing slid all the way down and pulley went right on too just like butter.
Heat is the key!
bazzateer
Well-known member
moonpool145
Well-known member
C'mon guys, the answer is obvious.
Move to Florida & scrap the snowblower.
Have to disagree there. Transplanted from WI to FL 1.5 years ago and in my honest opinion FL *****. Sorry guys that live here, lots of folks are nice but I just dont jive with Boca.