wheel bearing removal?

[Gazz]

Are there any special tools required for doing this job?

I am trying to remove the wheel bearings on a Yamaha SR125 but cannot get the things to budge. I have removed the plastic seal/cover bit and been knocking from the other side with a hammer and suitable rod of metal. But the bearings aren't for coming loose... Any ideas?

I have a 4lbs mallet in the garage, should I use this, I have been avoiding using it as I don't want to cause any unnecessary damage - so have been using the light knocking and then some pleading technique with a normal weight hammer.

[Kickstart]

Hi

Check if there is a circlip holding the bearing in. On some bikes there is one on one side (often on Kawasakis). Also possible someone has loctited the bearings in.

Normally you just knock the spacer in the middle across a bit so you have a ledge on the inside of the bearing to catch a drift on then knock against that, moving round to the other side to try and ensure they come out straight.

All the best

Keith
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[Islander]

This ^^

The key is to knock it out evenly by moving around the bearing. That way it won't jam.

[Raffles]

[Gazz]

Still needing help with this.

Is it possible to move the speedo drive bit that attatches to the wheel.

The bearings that I have ordered look like they need put in from the speedo drive side because of the other side of the wheel will not allow the bearing to go in.

How would I remove this part as it seems the only way to get them in.

Here are some photos of both sides of the wheel:

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-snc6/p480x480/166697_10151507274687768_628551189_n.jpg

https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/p480x480/559324_10151507275067768_694231618_n.jpg

[Gazz]

P.S. - I've been knocking 7 shades of shit out of them with aforementioned heavy hammer and they aint budging !!

[2 litre]

[temeluchus]

there are a few moderately priced bearing pullers on fleabay if you are truly stuck.
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[Pol Anorl]

£30 or so ebay bearing puller or make your own using a decent sized hollow tube with a lip and a threaded bar in the middle with a decent set of washers and nut to tighten up and expand the end.

Job done.
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[CaNsA]

Give them a clean, there will be circlips holding them in.

[temeluchus]

What year is it?

https://www.sr125.atw.hu/service_manual1997.pdf

This manual doesn't show any circlips.
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[Pol Anorl]

My old sr never had circlips holding them in...

I do remember having to drink a can of fosters then cutting it up and using some as a sleeve as it failed the mot on the brand new wheel bearings due to a worn hub..

Fun 125 days lol.
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[neil.]

I've used a slide hammer bearing puller with great success in the past. Same as this: https://www.ebay.co.uk/itm/Pilot-Spigot-Bearing-Slide-Hammer-Puller-Trident-T68240-/310235798303?pt=UK_Hand_Tools_Equipment&hash=item483b7e9b1f
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[YBR Ric]

From the top photo it looks to me as if you're trying to remove it by attempting to force it inwards
through the wheel instead of outwards by using a drift (old screwdriver) through the center of the hub against the inner race.

The tubular spacer which sits between both inner bearing races has already been partially dislodged but will need moving a little
more to allow access to the inner race of the bearing.

[bikenut]

:D you sure there3s no circlip, its been mentiond twice, check cmsnl.....also some better pics......would help.

do you have a welder, to weld plate over hole to knock out from the other side......by passing drift through spindle hole......dont use a big hammer.....hot water....

[dungbug]

Any bike workshops nearby? Maybe take the wheel to them and ask them to remove the old bearings if you're truly stuck with it, I had the T'Cat MOT'd yesterday and it had an advise on the front wheel bearing, the guy said if I took the wheel to him he'd remove the old bearings for a tenner if I couldn't get them shifted.
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[Gazz]

The bike is not mine. It is my girlfriend's cousin. I am not spending any money on it. I just told him that I would do any labour on it for him for free if he gets it MOT'd and finds out all its faults.

I will try using an old screwdriver and knocking it out using that method. Will also try heating the are as well - but only have a heat gun. Don't have any oxycetelene. So we'll see how I get on with that and feedback here later.

Cheers for all the feedback guys. I will karma later once I get access to a computer.

[bikenut]

:D so theres defo no circlip cos you checked right!!

you wont need oxyacetylene unless you want to melt the wheel.....

do yopu have a longish drift rather than a screw driver. died printers are a good scource of a driftssss

check out cmsnl........may come in handy........and be c arefull puttin the new ones in!!!!!!!!! you know how to right?? :D

[Gazz]

Still no luck. Broken screwdriver, broken hammer (the handle) and flattened the end of a couple of bars. Also melted all the grease off with the heat gun.

The bearings that I have been supplied look too big to fit however and the only way that I can see that they will fit is if I can remove the speedo drive prongs (what is this part called - it can be seen in one of the photos). Don't know if this part is actually part of the wheel or not but can't seem to get that loose without damaging it. If this part was removed I would imagine the bearings would come out a lot easier and also fit (because they are too big to fit with this part in place).

[base]

When i changed the wheel bearing on my FZR I tried the hammer and drift thing with no success, I bought a sliding hammer bearing puller see below.

It was a real pain to get them out and i deformed the tool due to how tight I had to get it to grip but they came out eventually, even though the tool is deformed its still useable.

https://www.ebay.co.uk/itm/5PC-INNER-BEARING-PULLER-SET-REMOVER-SLIDE-HAMMER-BLIND-HOLE-INTERNAL-/251251520095?pt=UK_Hand_Tools_Equipment&hash=item3a7fc1f25f

[bikenut]

:D for gods sake look at the bloody pictures of your bike on cmsnl, you might learn summut.............

[Gazz]

[djr]

[moppy]

I had a bitch of a time taking them out of the front wheel of my ZZR. Patiently tapped the bloody thing for about an hour before I gave up. Took the wheel down to the local mechanic, he got them out and stuck new ones in for a fiver.

I love backstreet mechanics.

[temeluchus]

SR125 is not on CMSNL.

I did link a workshop manual earlier in the thread. No circlips.
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