Pulling a bearing off a 2 1/2 inch shaft

[C-Bag]

Bearing is over a grand or I would just torch it.

I was just a mech, and when I did mine that was ‘93. Wow.

 

[Ulma Doctor]

If you can measure the bearings, I’ll bet you lunch that i can find them for less than $1k

 

[Cadillac]

Bearing is over a grand or I would just torch it.

These days that’s not surprising. Now is that for the bearing only or with the flange?

 

[Nutfarmer]

It is a bearing assembly. Not your standard four flange bearing. I think it is a dual roller bearing. Think I will try dry ice on the shaft and a small torch on the bearing race. Can’t be worse than it is now. Usually once it starts moving the bearing will keep going. Not this one.

 

[extropic]

It is a bearing assembly. Not your standard four flange bearing. I think it is a dual roller bearing. Think I will try dry ice on the shaft and a small torch on the bearing race. Can’t be worse than it is now. Usually once it starts moving the bearing will keep going. Not this one.

Does that mean you're not going to drive the bearing back on and look for high spots on the shaft before trying what you described?

 

[projectnut]

It is a bearing assembly. Not your standard four flange bearing. I think it is a dual roller bearing. Think I will try dry ice on the shaft and a small torch on the bearing race. Can’t be worse than it is now. Usually once it starts moving the bearing will keep going. Not this one.

If you can get a manufacturers name and number off the bearing give these people a call. A few years ago, when i rebuilt the Worthington drive in my Sheldon lathe almost every bearing supplier I contacted wanted over $500.00 each for the 8 bearings it needed.

I was able to get the manufacturers name and number off the old bearings. Even though the manufacturer had been out of business for years they were able to cross over the numbers to Fafnir bearings available today. The total cost including shipping for all 8 bearings was under $280.00

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[twraska]

Bearing is over a grand or I would just torch it.

I’d look at other suppliers. We own 3 20’ flail shredders, rotor bearings are about half that.

 

[mattthemuppet2]

Definitely clean up the shaft and push it back first. The smallest burr can cock the bearing and cause it to dig in, it really doesn't take much on a close fit.

 

[tq60]

You likely have a dent in the shaft from something hitting it, maybe.

By using the high power equipment you have, it really stuck.

First, you need to undo what you have done.

Make a coller to be a cushion, a very close fitting ring or tube that is truly square on both sides, this needs to just fit over the shaft, if it hangs up while sliding from end, file down the cause.

Once it is resting against the bearing, locate a pipe that will fit over the shaft and butt against the cushion and extend past the end of the shaft.

Cap end of pipe.

Do not use a BFH...harbor freight has pneumatic demolition guns, bigger than air chisel, smaller than jack hammer, but do miracles in pounding stuff

Apply lots of oil, then a few pops with the gun, and check for movement.

Once you get it free, look for and repair the high spots.

Use the other bearing as a gage, slide until it stops, inspect for damage, and file smooth.

Sent from my SM-G781V using Tapatalk

 

[Nutfarmer]

Only wish it was that simple