Cunnings ways of removing bearings from an LTS frame?

[haydnw]

I'm trying to strip an LTS frame and have got stuck with some bearings. It seems they're a rather tight friction fit into the relevant bit of frame, and I'm not sure how to get them out. I've tried placing a suitably-sized metal disc over them and applying several swift smacks from a mallet, but with absolutely nil effect. I've also tried tightening a G clamp over the entire thing, to push one side through into the middle. That just bends the two arms of the frame closer together. Even with something rammed between the arms as tight as possible to minimise the flexing, they still bend. I've therefore given up on that idea too, for fear of damaging something.

Any other possibilities? Anyone got anything as cunning as a fox who's just been appointed professor of cunning at Oxford university? If this bit's tough, I'm really not looking forward to the stuck seatpost.

 

[fingers]

Which bushing you after?

Different trick to each

 

[dyna-ti]

Prayer answering time

http://www.youtube.com/user/Te55Tube

thought some pics of what bushings exactly you are talking about would be somewhat of a help
the lower ones dont push through and come out separately whereas the top pivot knocks through.
hope you havent damaged it by trying to force it out :?
And which model?

 

[haydnw]

Sorry guys, internet connection went belly up last night before I could add the photo. I've got these two in the section where the trunnion mounts:

and another set from the BB pivot end of the chainstay section. Will try to get a photo of that later on.

I don't think I've damaged anything, on the basis that I have a history of never applying enough brute force to anything anyway. It's an LTS-DH, apparently from 2000. I have no idea if these came as standard or have replaced the originals.

 

[Gadro]

Recently replaced the main bearing on my LTS-DS.

Spookingly enough a spark plug socket is the exact same size.

Place over bearing and hit with big hammer.

Works a treat and no damage caused

Here's the refurb

http://www.retrobike.co.uk/forum/viewto ... sc&start=0

 

[mattbrown]

all you need ot know here - http://www.mountainbikecomponents.co.uk ... ctions.pdf

 

[john]

Recently replaced the main bearing on my LTS-DS.

Spookingly enough a spark plug socket is the exact same size.

Place over bearing and hit with big hammer.

Works a treat and no damage caused

Here's the refurb

http://www.retrobike.co.uk/forum/viewto ... sc&start=0

x2. When I was 'mechanicing' BiTD used a socket to knock them in an out of LTSs. Have vague recollection of a proper tool but maybe my memory fails me....

 

[haydnw]

Thanks everyone - looks like more force is the answer, as always. I was a bit unsure as the GT video doesn't actually cover removing the bearings from the link / chainstay, and the BETD instructions are completely different to what I have here! I'll give them a smack and report back soon...

 

[Sidewinder]

Thanks everyone - looks like more force is the answer, as always. I was a bit unsure as the GT video doesn't actually cover removing the bearings from the link / chainstay, and the BETD instructions are completely different to what I have here! I'll give them a smack and report back soon...

Puts brush and shovel in car and heads to Nottingham

 

[haydnw]

Finally got around to dealing with this today. No brush or shovel required. A 15mm socket fitted perfectly, thanks to Gadro and John for that tip. A reasonable amount of brute force was applied and all four came out without too much trouble. The frame's now totally stripped and is off to be powder coated tomorrow.

If anyone comes across this during a search at any point in the future, the bearing reference number is handily printed on the curved outer edge, making it unreadable when fitted in the frame. The one you need is a 608 2rs, which has internal diameter 8mm, external 22mm and depth of 7mm. They are available from engineering type places:

http://simplybearings.co.uk/shop/advanc ... d_filter=1

or alternatively from CRC, who have some fairly standard looking ones:

http://www.chainreactioncycles.com/Mode ... elID=37525
http://www.chainreactioncycles.com/Mode ... elID=37925

and some frankly ridiculous ones for nearly £20 a pop:

http://www.chainreactioncycles.com/Mode ... delID=3752

I've ordered some CRC ones from the first link, so we'll see how they turn out.

I should point out that this info is relevant to my LTS-DH, which I've been told is a year 2000 model but I haven't confirmed. All bets are off for other models / years.