Steering head bearing cups

[Steverat]

Josef's outer cups are impacted, you can see the ball indentations in the cups. Does anyone know where I can get one of those extraction tools that screw into the cup for then knocking out from the steering head? My internet search skills failing me here.....

[Greybeard]

I welded a piece of bar across the races on each bearing and tapped them out with a drift. The heat from the welding must have helped. I wrote it up with a sketch, if you wan't to search for it.
I bought a couple of taper roller bearings to replace the old bicycle style balls and cups.

[muskrat]

G'day Steve
Ditto as above.
Cheers

[Simon59]

I had trouble getting my bearing races out so I took the frame to my local engineering blacksmith. After a few trials with various techniques and some choice swear words, he used a plasma cutter to cut through the steel. He confirmed that the bearing cups were seized into the frame and thought there was no way a threaded drift would have got them out.

This has left a few marks on the frame seat where the new tapered roller bearing from SRM will seat, but I’ll dress these out with my Dremel. 

The price for this work? £20. A bargain considering everything! 

[Steverat]

Finally I found the part number for the extractor in Haynes, its 61-3063. They do work well, I've had one before a long time ago, just can't find my old one anywhere.

Drags are sending me one for £33.60. Might be a bit more than welding things to the cups but I prefer.

[duTch]

 dong my Gutzzi ones, I was suggested to run a bead of weld around the inside of the cup and they'll fall out- which I did and they/it did....

[Steverat]

Yes that sounds elegant, the shrinkage of the solidifying weld pulls the cup in I suppose

[Topdad]

I must have been lucky  cos when I renewed mine with tapered rollers from G Prew I simply turned the frame upside down and back then drifted the old cups using a brass bar I had , it didn't do any harm and they are still working fine  8 -9 yrs on

[Steverat]

In my case the cup ID isn’t small enough to get a drift onto the edge of it. Yes you are luckier

[berger]

top dad same here I tapped mine out same method  about 38yrs ago

[BSA500]

Has anyone had the frame wear around the bearing cups. My top one has always been easy to just push out with light pressure. I was wondering if its the reason for the front judder.

[lawnmowerman]

I have heard of people using Loctite bearing fit around the cups if they are a tad loose. It would be a good idea to clamp them in the housings until it sets with a length of studding and large washers.

Jim

[Butch (cb)]

I have heard of people using Loctite bearing fit around the cups if they are a tad loose. It would be a good idea to clamp them in the housings until it sets with a length of studding and large washers.

Jim

Loose on my Guzzi V50 after two big front end impacts. Just loctited in - all good.

[bsa-bill]

As I recall there was enough lip on the cups to employ a long punch or bar from the opposite end of each cup to tap it out, memory again though

[Greybeard]

As I recall there was enough lip on the cups to employ a long punch or bar from the opposite end of each cup to tap it out, memory again though

I found that that was not the case with me, hence the welding trick.