No32 motor ball bearings

[rw101]

Hi everyone,
I’ve been renovating a very gummy No 32 motor from an HMV109 machine. When I took it apart, I was expecting to find (a) a ball bearing at the bottom of the spindle shaft; and (b) a ball bearing at BOTH ends of the governor shaft. What I found is just one ball bearing at one end of the governor shaft (I’m pretty sure there is one there, but I can’t get it out!). Can anyone confirm there should be a total of three - it seems this motor is the same as the Victoria two-spring motor which does. Assuming this to be the case, I don’t suppose anyone has the necessary size for the ones I’m missing - they seem to be about 5mm and 2mm, so I’ll try those sizes, but nice to know what they should be.
[Yes, there is a possibility that they dropped out when I was dismantling, but I was expecting them and took every precaution not to lose them, so I think unlikely I lost two].
Thanks

[JerryVan]

There is only the need for a ball bearing at one end of the governor. The bearing at the "worm end" of the governor shaft is the one that needs a bearing. There is no need to remove and replace it. There should also be a ball bearing under the spindle shaft, as you suggested. There is normally no reason to replace that one either, unless it's missing of course.

[rw101]

Thank you, that’s interesting. Even more so because the bearing I can see is at the other end of the governor to the worm gear! So I guess I do need to try and get it out and shift it to the other end? Or is it as good to just put one in the other (“worm”) end, and have two, with the slight extra length accommodated by the adjustment available to the bush that holds the non-worm end?

[JerryVan]

Thank you, that’s interesting. Even more so because the bearing I can see is at the other end of the governor to the worm gear! So I guess I do need to try and get it out and shift it to the other end? Or is it as good to just put one in the other (“worm”) end, and have two, with the slight extra length accommodated by the adjustment available to the bush that holds the non-worm end?

There's a fair chance that both bearings actually have a ball in them. It's very hard to see deep inside the bearing and there may be dried oil in the bottom, obscuring all but a tiny bit of the ball, where the governor shaft butts up against it. I have never had a ball fall out of a governor bearing, (maybe others have?). If either bearing were meant to have a ball in it, and the ball is now missing, the bearing would slide onto the governor shaft too far and bind against the shoulder beyond the pin end of the shaft.

[rw101]

It is difficult to see most definitely. I’ll have another good look when I put it back together, and report back.

[Sherazhyder]

There is only the need for a ball bearing at one end of the governor. The bearing at the "worm end" of the governor shaft is the one that needs a bearing. There is no need to remove and replace it. There should also be a ball bearing under the spindle shaft, as you suggested. There is normally no reason to replace that one either, unless it's missing of course. In that case, use the biggest ball that will drop in the hole.

The 32 motor with me has two tiny keepers on each end of the governor shaft but no ball or bearing.

regards
Sheraz

[Inigo]

I once tried to get these balls out, and it costed a lot of effort! It's likely they are in there still. You can maybe try to feel the ball using a gramophone needle tho touch it.
Some hmv governor bearings have a slot in the middle of the body, where the set screw must sit.. If only one of the two has the slot, that's the one that goes in the worm side. That position is thus fixed. This you mustn't change unless you've made modifications to the governor.

[Sherazhyder]

I once tried to get these balls out, and it costed a lot of effort! It's likely they are in there still. You can maybe try to feel the ball using a gramophone needle tho touch it.
Some hmv governor bearings have a slot in the middle of the body, where the set screw must sit.. If only one of the two has the slot, that's the one that goes in the worm side. That position is thus fixed. This you mustn't change unless you've made modifications to the governor.

See the attachment please and tell if there is a keeper or bearing on right side of the governor.
regards
Sheraz

[Inigo]

I believe that in my examples of no32 and no34 motors, I have bearing balls on both sides of the governor.
In any case, the side of the plate would nod need it, as the force is exerted on the other side, towards the worm.

[pumpkin]

Regards the spindle shaft bearing I managed to loose one in dismantling and found what I thought was suitable from a kiddie maze puzzle game.
Sure the ball fitted in the receptacle hole but when assembling the motor I found the spindle seized due the ball being a fraction too large.