Removing 1st Motion Bearing from shaft

[rogerotto66s]

Last thing to be removed.

Manual says (1) use bearing puller or (2) rest bearing on vice jaws and “hit” shaft to loosen shaft from bearing.

I tried (2) without success, yet.

Last time I used a bearing puller I broke the bearing puller!

Suggestions would be appreciated.

IMG_2069.jpeg

[Jason]

Two leg puller normally does the trick, failing that fit the gear & bearing back into the case and refit the circlip. Then use a slide hammer attached to the thread and slide the opposite way than for bearing/gear removal to push the gear from the bearing.

Regards Jason

[Peter Laidler]

I suppose that you have tried heat. I'd play a flame around the outer edge of the race and let the balls take the heat into/onto the inner race. It's only got to enlarge the inner race diameter by, say, .00050" and your copper mallet will free it.

If you were very clever and had a fine flame, you could play the flame onto the balls directly whlle you rotate the outer race - to do the same job.

The temperatures we're talking about will make no difference to the structure of the bearing if you want to re-use it.

1071 Bob, and Spider......., are you there?

[Jason]

Assuming the bearing attached to the 3SYNCHRO first motion gear is an original(2A3709) with a metal cage then small amount of heat is an option as a last resort. Would not use this method if fitted with a plastic cage though for obvious reasons

[Spider]

I remove them by placing the shaft between the blocks on the press, with the bearing sitting on top of them, then pressing them off. I' have done them with a two leg puller, but it's the type that the legs are fixed in position on a H beam, the more common types I find the legs slip off too easy.

Another way using a puller would be to use one that has a bearing separator.

[SPO41]

I hold the bearing in my left hand and hit the end of the shaft with a copper hammer.
Done it hundreds of times and never damaged anything. The bearing always comes off.

[rogerotto66s]

All’s well that ends well!

Rested bearing on top of vice, placed small socket on end of shaft and hit with hammer.
I did put wd-40 on the shaft for some time first.
Bearing finally did come off.

Now to check if I have all the springs, balls and detent plugs.