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Does such tool existed?

prtuc2

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Aug 9, 2021
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Hi Everyone, I am new to the forum and seeking some advice. I am a mechanic working with equipment that frequently need to remove rust or seize up bearing. My situation is that I usually use a pin punch and hammer to knock it out, but there is only about 10 inches for both the pin and hammer clearance and most of the time I need to put the hammer side way and generate little force. My question is that are there any tool(s) can work similar to a hammer but without the need a lot a clearance to generate downward force? Thank you everyone for any suggestions or advice in advance.
 
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DeeKay

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Can you get a slide hammer and puller attachment in there?
Also do you have any pictures of what you're working on?
 

sick467

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A porta-power comes to mind. It's not exactly like a blow from a hammer, but can certainly put some force on items in close quarters.
 

rlitman

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10" is a workable amount of space. You could shorten a chisel from an air hammer to fit, or use a shortened pin punch held in a punch holder with a small head hammer.
 
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prtuc2

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Can you get a slide hammer and puller attachment in there?
Also do you have any pictures of what you're working on?
I can provide image as my job not allow to take photos Bearing.jpg
The wider part of the bearing goes on bottom of the aluminum plate and is held by M6 cap socket on the top of the aluminum plate. Thanks for all the advices so far, no power tool allow near sensitive equipment.
 

larry_g

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Do you have the ability to machine up specialized tools? I have more than once used wedges to force things into submission, look at Jacobs Chuck removal wedges for an idea of something to make that will fit your job at hand. Also look here https://www.mcmaster.com/wedges/ to see if something is close or cam be modified to work.

lg
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prtuc2

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Do you have the ability to machine up specialized tools? I have more than once used wedges to force things into submission, look at Jacobs Chuck removal wedges for an idea of something to make that will fit your job at hand. Also look here https://www.mcmaster.com/wedges/ to see if something is close or cam be modified to work.

lg
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Unfortunately, my boss does not like us doing modification to tools or equipment.
 
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prtuc2

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can you make a jack screw and jack it down from the top plate?
The bearing cylinder width is roughly 11mm or 7/16" inch. I was actually thinking about a cylinder tool with a compress spring and pushing a button or lever will snap a punch down as a striking tool.
 

Captain Spaulding

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The bearing cylinder width is roughly 11mm or 7/16" inch. I was actually thinking about a cylinder tool with a compress spring and pushing a button or lever will snap a punch down as a striking tool.
Maybe an automatic center punch with a piece of sacrificial steel under the point?
 

Larryjones

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"Unfortunately, my boss does not like us doing modification to tools or equipment."
Buy your own tools and modify them.
There are countless tools out there for pulling and pushing things. Simple bolt and stack of washers has served me many times.
 
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joecon

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Can you push against the top plate? A sleeve and a bolt and nut could press out the bearing?
 

larry_g

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Unfortunately, my boss does not like us doing modification to tools or equipment.
In a past life I ran into idiots like that. Can you explain to him/her in dollars and downtime what he is wasting in down time to preserve a tool that may only cost a few bucks? Where I worked we figured downtime at $15 / SECOND. A few seconds saved on downtime could pay for a lot of specialized and custom tools. Do you know what your downtime is as a percentage of time available? If you don't you should.

lg
no neat sig line
 

The Cobbler

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Unfortunately, my boss does not like us doing modification to tools or equipment.

In a past life I ran into idiots like that. Can you explain to him/her in dollars and downtime what he is wasting in down time to preserve a tool that may only cost a few bucks? Where I worked we figured downtime at $15 / SECOND. A few seconds saved on downtime could pay for a lot of specialized and custom tools. Do you know what your downtime is as a percentage of time available? If you don't you should.

lg
no neat sig line
From a liability point, when the tool is modified, and the tool breaks, or someone gets hurt, and it is directed at the modified tool that the boss knew about, I don't see it as idiotic.
but from a pure practical standpoint , I would have to agree with you
but, from a liabilty point and potential liability view, I side with the Boss.
 

larry_g

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From a liability point, when the tool is modified, and the tool breaks, or someone gets hurt, and it is directed at the modified tool that the boss knew about, I don't see it as idiotic.
but from a pure practical standpoint , I would have to agree with you
but, from a liabilty point and potential liability view, I side with the Boss.
It's a sad world we live in where some have to worry more about perceived problems of liability. It was not uncommon for me to build a tool from scratch if necessary. Make tooling to to fixture things as required. So much of what I worked on was prototype or unique machines built to manufacture our products. So coming from a high tech manufacturing world where everyone had access to information on operating statistics it was easy to justify items that would lead to greater uptime. Small minded people who blocked progress did not last long in their position.

lg
no neat sig line
 

mcj115

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Could over length M6 bolts be installed to leave some exposed threads? Then just get some sleeve nuts on the threads a gear puller and a few more M6 bolts and bam you have a puller setup in no time.
 

RTM

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It was not uncommon for me to build a tool from scratch if necessary. Make tooling to to fixture things as required. So much of what I worked on was prototype or unique machines built to manufacture our products. So coming from a high tech manufacturing world where everyone had access to information on operating statistics it was easy to justify items that would lead to greater uptime.
Sound like a guy who works for me. Been here longer than I have by a year or three, but has designed and built around 100 projects per year for the last 10, each possibly an operations fix, an ergonomic fix, or “ we’ve got this great idea to make this (project, line, experiment) run so much better. Invaluable. One project, one of the few we could put a price on, saved $225k per year in lost product COGS.
 

BillK

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I dont know where you are located but I wonder if you could get something in there to "freeze" the assembly and shrink it some so it might come out easier ??
 

Ohmthis

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It’s hard for me to visualize the setup, not your fault. I’m assuming you are hitting the outside race if the bearing to drive it. A piece of pipe that will put solid pressure on the outer race and a plate on top of that. Now two bolts with a threaded coupling (similar to the manifold stretcher above) will make a nice press. If I’m way off I apologize.
 

p00p

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wedge two metal blocks in the opening, with one block made to touch what is to be hit. Slide an chisel end in between the blocks & while applying force, smack the chisel.
 

Dumber than lumber

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Thats not fair at all. There are many, many industries where using modified tools is absolutely forbidden. We dont know what he is working on and he probably cant tell us.
He could have told us the rules of engagement early on.
You know that we like solving engineering puzzles here. But the OP failed in terms of giving us the facts.
Neither this comment or my prior one should be considered a personal attack FWIW.
 
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