This post has nothing to do with Photography, But it's in General Chit-Chat: How would you go about getting the bearing out of the pulley. There is no access to the top side of the...

Manglesphoto Loc: 70 miles south of St.Louis

How would you go about getting the bearing out of the pulley.
There is no access to the top side of the bearing. The pulley is aluminum so very high heat is out of the question,
The hub came out of the bearing with a little coaxing with a pair of lady slipper pry bars
The assembly is off of a Boice Crane Drill press, mod.1600, age unknown, I bought it last summer for $75, tried it out when I got home and it had some bearing noise,I decided to dive into it yesterday and it really had a lot of bearing noise, a new bearing is a little less than $30 +. shipping or I can pick it up the next time I'M in St.Louis.
I'M going to use this press for wood only since my big drill press table usually has cutting oil on it someplace.

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aammatj Loc: Zebulon, NC / Roscoe, Ill

I'd try heating it in an oven to 350 deg f. The aluminum should expand more than the steel so you may be able to get it out with some coaxing.

rdgreenwood Loc: Kennett Square, Pennsylvania

I can only speak in generalities, based on my long-ago career as a mechanic, but here goes. What I would look for is a slide hammer, a tool that has an adjustable size head. The head is inserted into and through the bearing and then adjusted so its circumference exceeds the circumference of the bearing's center. Once it's secure, the slide hammer is used to pull the bearing out. If this sounds like gobbly-gook, picture a 12-18 inch rod with one end having a variable diameter and the other end having a slidable weight wrapped around it. To use it, you insert the adjustable end in and through the bearing, adjust the circumference of the tool's end, then forcefully move the weight away from the bearing, so it tugs at the bearing.

I'm sure there are better descriptions for this process, but that's the best my old-guy's brain can give you. Good luck.

Busbum Loc: 85367

Manglesphoto wrote:

How would you go about getting the bearing out of ... (show quote)

Hi,
From the looks of your bearing you would need a puller to go inside the bearing hub with outside hooks to grab the race of the bearing, something like this;

https://www.napaonline.com/en/p/BK_7768018?cid=paidsearch_shopping_dcoe_google&campaign=GSC-Tools-Equipment&campaign_id=8553470562&adgroup_id=107047174069&adtype=pla&gclid=Cj0KCQjw4v2EBhCtARIsACan3nybXtUj-DKV9NZHZZ9XBAkHF5o0vX3ptM_odB46C1IQ8Pm6FaBCj-MaAslXEALw_wcB&

HTH

Manglesphoto Loc: 70 miles south of St.Louis

rdgreenwood wrote:

I can only speak in generalities, based on my long... (show quote)

I am a retired mechanic/machinest of 60+ years
I it were that easy this would not have been posted, I own all kind of pullers including blind hole pullers.
There is no way to get the puller inside the bearing.

Manglesphoto Loc: 70 miles south of St.Louis

Busbum wrote:

Hi,
From the looks of your bearing you would need a puller to go inside the bearing hub with outside hooks to grab the race of the bearing, something like this;

https://www.napaonline.com/en/p/BK_7768018?cid=paidsearch_shopping_dcoe_google&campaign=GSC-Tools-Equipment&campaign_id=8553470562&adgroup_id=107047174069&adtype=pla&gclid=Cj0KCQjw4v2EBhCtARIsACan3nybXtUj-DKV9NZHZZ9XBAkHF5o0vX3ptM_odB46C1IQ8Pm6FaBCj-MaAslXEALw_wcB&

HTH

<<<< retired mechanic/machinist with 60+ years in the field.
Look at the photo again there is no way to get inside the bearing!!!

Manglesphoto Loc: 70 miles south of St.Louis

aammatj wrote:

I'd try heating it in an oven to 350 deg f. The aluminum should expand more than the steel so you may be able to get it out with some coaxing.

I may try that, didn't even think of heating. But it is sure gonna stink

I do have a smoker I use for curing Cera Coat in my shop I can set it out side.

williejoha

Use the puller that Busbum shows and modify it into a slide puller.
WJH

tradio Loc: Oxford, Ohio

rdgreenwood wrote:

I can only speak in generalities, based on my long... (show quote)

That's exactly what I was thinking.

Iron Sight Loc: Utah

https://www.google.com/search?q=removing+bearing+race+from+blind+hole&oq=removing+a+bearing+race+&aqs=chrome.6.69i57j0l2j0i22i30l7.16726j1j15&sourceid=chrome&ie=UTF-8

Manglesphoto Loc: 70 miles south of St.Louis

Everybody is suggesting the same thing!! It won,t work !!!
Please look at the photo then tell me how in the hell you would get the puller jaws inside the bearing bore .part of the pulley extends into the bearing bore even with the bottom of the bearing

Manglesphoto Loc: 70 miles south of St.Louis

Everybody is suggesting the same thing!! It won,t work !!!
Please look at the photo then tell me how in the hell you would get the puller jaws inside the bearing bore .part of the pulley extends into the bearing bore even with the bottom of the bearing. I have one good suggestion actually the first reply. Which I will try later today.
My last resort will to weld a nut to the bearing and use a slide hammer puller.
The reason being if I screwup the pulley could end up being junk!!!

rdgreenwood Loc: Kennett Square, Pennsylvania

Then take a breath and don’t screw up.

Manglesphoto Loc: 70 miles south of St.Louis

rdgreenwood wrote:

Then take a breath and don’t screw up.

Well you have heard about mice and men. !!

pmorin Loc: Huntington Beach, Palm Springs

Manglesphoto wrote:

How would you go about getting the bearing out of ... (show quote)

Have you considered using dry ice to contract the steel bearing enough to remove it? Weld a slip bar to the bearing, apply dry ice and tap it out.
A slip bar can be made with some rebar, a small diameter pipe and a top plate.