RADBMX.CO.UK
BMX General => BMX Chat => Topic started by: Andyboy77 on March 19, 2017, 02:03 PM
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Is there a special tool out there to remove sealed bearing bottom brackets -gently?
I saw some people using a screwdriver or something similar and a hammer, but all the bottom brackets suffered due to that procedure quite a bit.
In other words they looked pretty fooked. ???
Many thanks in advance! :daumenhoch:
Andy
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Bit of copper pipe as long as they've been not installed for a long time and the alloy has fused with the steel.
Obviously you don't want to beat the shit out of them but noone ever sees the back a few dents wont affect their performance.
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Hammer and something rigid but not too hard to knock them out, think I used the a steel bar with a plastic cap on the end.
They will get slightly damaged though, the aluminium housings are pretty soft.
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Bit of copper pipe as long as they've been not installed for a long time and the alloy has fused with the steel.
Obviously you don't want to beat the shit out of them but noone ever sees the back a few dents wont affect their performance.
Hammer and something rigid but not too hard to knock them out, think I used the a steel bar with a plastic cap on the end.
They will get slightly damaged though, the aluminium housings are pretty soft.
They are in since 1985. No, I don't want to beat the crap out of them. But I get the idea though that it won't effect their perfomance, if I'm just gentle enough.
I don't have the heart to do it that way I'm afraid, so I was hoping some genius came up with a tool for that kind of exercise. But obviously that's not the case up until now. Too bad! :-\
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Tap round the cup, imagining it as a clock, 12, 6, 9, 3, 12, 6, 9, 3 and so on.
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Tap round the cup, imagining it as a clock, 12, 6, 9, 3, 12, 6, 9, 3 and so on.
Thanks for the advice! fistblump
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I use a socket set extension bar
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I use a socket set extension bar
Thanks for your reply Rob! :daumenhoch:
Does it still require some gentle beating?
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Andy. All of us who know Rob would agree with you that he does indeed need a gentle beating....... :2funny:
But yes, I always use the largest flattest item I can pressed against the bearing and then as Neil said, tap around gently like a clock face. You only want the bearing to move less than a millimetre at a time and it will eventually free and slide out.
When gently beating Rob I (and most others would agree i'm sure) use the same pricipal, ie use the largest flattest object. I mostly use Ed209 and hit Rob using him but i'm sure others have better tools for the job........ :shocked:
I use a socket set extension bar
Thanks for your reply Rob! :daumenhoch:
Do you still require some gentle beating?
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Andy. All of us who know Rob would agree with you that he does indeed need a gentle beating....... :2funny:
But yes, I always use the largest flattest item I can pressed against the bearing and then as Neil said, tap around gently like a clock face. You only want the bearing to move less than a millimetre at a time and it will eventually free and slide out.
When gently beating Rob I (and most others would agree i'm sure) use the same pricipal, ie use the largest flattest object. I mostly use Ed209 and hit Rob using him but i'm sure others have better tools for the job........ :shocked:
I use a socket set extension bar
Thanks for your reply Rob! :daumenhoch:
Do you still require some gentle beating?
:LolLolLolLol: :LolLolLolLol:
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Andy. All of us who know Rob would agree with you that he does indeed need a gentle beating....... :2funny:
But yes, I always use the largest flattest item I can pressed against the bearing and then as Neil said, tap around gently like a clock face. You only want the bearing to move less than a millimetre at a time and it will eventually free and slide out.
When gently beating Rob I (and most others would agree i'm sure) use the same pricipal, ie use the largest flattest object. I mostly use Ed209 and hit Rob using him but i'm sure others have better tools for the job........ :shocked:
I use a socket set extension bar
Thanks for your reply Rob! :daumenhoch:
Do you still require some gentle beating?
;D :2funny: Holy crap! :LolLolLolLol: Obviously I said unambiguously something ambiguous without knowing. Sorry Rob that wasn't intentional! :angel:
..at least I have an idea now why Rob didn't reply again. ::)
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Andy, it was just the usual British humour mate, I edited the text in your quote :2funny:
As it happens, we always give Rob a cuddle when we see him really mate, don't worry. I think it was the lack of understanding the Yanks had of our humour that started RadBMX in the first place so you're in good company here :daumenhoch:
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don't worry Andy, it's all good mate :daumenhoch:
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Andy, it was just the usual British humour mate, I edited the text in your quote :2funny:
As it happens, we always give Rob a cuddle when we see him really mate, don't worry. I think it was the lack of understanding the Yanks had of our humour that started RadBMX in the first place so you're in good company here :daumenhoch:
I'm always up for good banter! :daumenhoch:
I've noticed that you took it as a fit occasion (<<< is the right term I think) and turned it into something else. Actually I had troubles seeing my monitor 'cause I was cracking up like fook. ;D
However, I've sent Rob a message with my apologies just in case my initial question means something that I (or my dictionaries) don't know about. (...I bet now you're cracking up :) )
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This is what I use, its a steel bar with a nylon insert at the end. Its hard to tell from the pic, but the insert is angled at the end.
The bar has to go in at an angle due to the other cup being in the way.
The angled end means that when it touches the cup it sits flat against it, therefore spreading the force, reducing deformation of the cup.
Once removed the other cup can be knocked out with a flat ended implement
:daumenhoch:
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This is what I use, its a steel bar with a nylon insert at the end. Its hard to tell from the pic, but the insert is angled at the end.
The bar has to go in at an angle due to the other cup being in the way.
The angled end means that when it touches the cup it sits flat against it, therefore spreading the force, reducing deformation of the cup.
Once removed the other cup can be knocked out with a flat ended implement
:daumenhoch:
Thaaaaaaanks! :4_17_5: That's brilliant! As far as I get the steel bar between the OPC and the BB...that idea looks good to me!
Thanks mate...will give a report when I'm done! :daumenhoch: