Swingarm Needle bearing removal advice

headcoats · Post by **headcoats** » Thu Dec 04, 2008 3:02 pm

I'm getting the swinger powdercoated soon ,so need to get the bearings out.

How the bloody hell do you do it ?

Also how do you put the bloody things back in

Shall i put new ones in ?

the-elf · Post by **the-elf** » Thu Dec 04, 2008 3:59 pm

A piece of steel tube with a slightly bigger internal dia and a bar to push them out, and press them out in a vice or a press. Two man job but it works. Had to do my old KDX220 when they collasped, and they were seized in solid. This was the only way we could get them to budge.

Plus its such a PITA job I would always put new one back in, complete with any new seals etc. On mine I had to replace the spacers and the shaft as well due to the wear.

scooble · Post by **scooble** » Thu Dec 04, 2008 4:19 pm

got mine out by heating the swinger with a heat gun and using a long drift to punch them out. They were knackered though so I wasn't too concerned about damaging the bearings.

To get new ones back in, I used the swingarm pivot bolt and some cylindrical spacers that were the slightly bigger in diameter than the bearings. Place the pivot bolt nut on the other end (also with spacers) and wind both of them in with a ratchet. Use lots of grease though and a bit of heat (espescially to get it started).

maybe not the best way, but it worked for me

Red Devil 777 · Post by **Red Devil 777** » Thu Dec 04, 2008 5:09 pm

Stick new bearings in the freezer for a while, they'll go in a fraction easier.

I normally use a length of threaded rod with a plate on one end, and a socket about the same size as the bearing, large washer or two over that, nut on top, then ring spanner on that and wind it in.

Make sure you don't damage the place where the bearing will sit with a drift when removing them

(not saying any more

)

Can't remember if you can get generic bearings for the swingarm, but might be worth checking out with a decent bearings factor before paying for the same thing in a little kwak packet

headcoats · Post by **headcoats** » Thu Dec 04, 2008 5:34 pm

Cheers for the replies

Just getting the first one out looks the biggest headache

Elf do you mean pushing the one all the way through with a bar as in say the right bearing would exit on the left

Red Devil 777 · Post by **Red Devil 777** » Thu Dec 04, 2008 6:31 pm

headcoats wrote:Cheers for the replies

Just getting the first one out looks the biggest headache

Elf do you mean pushing the one all the way through with a bar as in say the right bearing would exit on the left

Wouldn't try it that way, most swingarms have an internal stop (can't remember if the kr arm does or not, lost track now

) for the bearing to sit on , so you'll be messing for a long time

In extreme cases, where they've been rusted in , I've even used a dremmel with a slitting disc to cut the bearing before getting it out, hopefully yours shouldn't be as bad as that!

SHimmer45 · Post by **SHimmer45** » Thu Dec 04, 2008 6:45 pm

there is an internal ridge...
when i did mine (with some help) i got the bearing started and then pulled it in using a bot of threaded bar and the blanking plates i used to cover the holes.

slowly tighten one end and it pulls it in nice and flat

fred · Post by **fred** » Fri Dec 05, 2008 9:36 pm

Can't remember if you can get generic bearings for the swingarm, but might be worth checking out with a decent bearings factor before paying for the same thing in a little kwak packet ,
ime stripping mine for powdercoating at crimbo holliday and am ordering bits now,

Steely · Post by **Steely** » Fri Dec 05, 2008 10:59 pm

Try here, very good site,

http://shop.marksman-ind.com/index.asp

SHimmer45 · Post by **SHimmer45** » Sat Dec 06, 2008 12:24 am

when i wassourcing bearings from a bearing factor the swingarm and suspension linkages had to be geniune kwak as they are an odd size, cos they are very wide

kwackman12 · Post by **kwackman12** » Sun Dec 07, 2008 12:05 am

If someone could send me an old set of bearings or dimensions I could try the bearing factors near me

the-elf · Post by **the-elf** » Sun Dec 07, 2008 11:22 am

Red Devil 777 wrote:Stick new bearings in the freezer for a while, they'll go in a fraction easier.

Dry ice in alcohol works well

you can get them done to -50 quite easily

.

the-elf · Post by **the-elf** » Sun Dec 07, 2008 11:28 am

headcoats wrote: Elf do you mean pushing the one all the way through with a bar as in say the right bearing would exit on the left

Nope push the right one out of the right side and the left out of the left side. It'll depend on the design of the arm as to the best way to push them out.

SHimmer45 · Post by **SHimmer45** » Sun Dec 07, 2008 12:20 pm

kwackman12 wrote:If someone could send me an old set of bearings or dimensions I could try the bearing factors near me

i can sort some dimensions out for you

Red Devil 777 · Post by **Red Devil 777** » Sun Dec 07, 2008 1:45 pm

Bearing is listed as bm283417 on the parts list (care of mj's website

)

So I assume that to be 28mm bore, 34 mm outside diameter, 17mm width.

Quick search shows it's not a common size but there are some available.

Also smaller bearing on the linkage is definately available from non kwak sources cos I've had some.

KR-1S.co.uk Forum

Swingarm Needle bearing removal advice

Swingarm Needle bearing removal advice

if any ones got bearing numbers ile look