|Bernard Greatrix||10/04/2020 16:55:47|
|32 forum posts|
A few weeks ago our washing machine went wrong - the bearing at the back collapsed. Getting the inner off the shaft was no problem but the outer gave me no end of grief. I eventually ground it apart. That was when I discovered that the seal had collapsed and that too would need replacing.
|Tony Pratt 1||10/04/2020 17:10:02|
|1583 forum posts|
I'm guessing some sort of spigot would have to go in the hole?
|Nick Clarke 3||10/04/2020 17:16:47|
1221 forum posts
Reverse the three legs so the 'toes' point outwards - but this type of puller is mainly meant for using this way round so this model is unlikely to fit a small bearing - but there are slimmer ones available
|Bernard Greatrix||10/04/2020 17:28:17|
|32 forum posts|
The bearing I'd tried to remove was about 2-1/2" diameter so plenty of room for the legs of the puller I borrowed.
Incidentally the picture is lifted from the net, but is pretty much the same as I had.
As I said its a matter of a few minutes work to reverse the legs.
The problem is what does the centre screw push against.? I even found a U-tube video which spent ages showing how to reverse the legs (rather longer than it actually took) - it then finished without showing the critical part
5920 forum posts
Often the way with the outer is to whack the exposed edge with a drift from the other side.
|Ian Parkin||10/04/2020 17:40:15|
952 forum posts
I would never have imagined that that type of puller is for anything other than external use
|Robert Atkinson 2||10/04/2020 17:45:53|
1017 forum posts
This won't work as an internal pulller unless the race is in a blind hole ot you can bolt a support across the back of it
|not done it yet||10/04/2020 18:06:29|
|6078 forum posts|
The oft-used method is to use the electric welder to shrink the race. Also the simple way to remove dry liners from engine blocks, if suitable hydraulic kit is not available.
571 forum posts
Exactly, what makes you think it was ever intended for internal bearings?
|Robert Butler||10/04/2020 18:43:07|
|252 forum posts|
Google - slide hammer bearing puller Robert Butler
477 forum posts
Remove the centre screw and replace with a slide hammer shaft.
|Ian Skeldon 2||10/04/2020 19:05:43|
|540 forum posts|
Looking at the puller I would suggest that you unscrew the bolt completely then put it back in at the bottom (upside down) and then the top of the three legs can be used on an internal bearing.
|Clive Foster||10/04/2020 19:40:35|
|2735 forum posts|
Quite a few different designs of this style of puller. Depending on the details they may or may not be able to work on internal bearings.
As Ian says the key is to reverse the bolt and swing the arms the opposite way so they point away from the bolt head.
If the puller can work in expanding mode curve of the legs where they contact the spider must be such to force the legs further, or rather harder, apart as the bolt is tightened. Sometimes you may have to attach the short flat steel arms to the legs via the second hole. Mine is a 1970's (ish) vintage Sykes Picavant, allegedly the original one, and that essentially won't work in expanding mode to remove a bearing from the inside. Only one hole in the legs and the shape is such that generally there can be no reliable forcing out effect except over a limited. pretty much impractical, range.
You still have to find something for the screw to push against.
I tend to make up internal pullers on an ad hoc basis using an expander in a slotted alloy tube alloy with a small flange to grab the bearing. Or for smaller ones a threaded end expanding concrete fixture (Rawlbolt style) may do the deed. For larger bearings the same sort of expanding fixture may work is padded out with a suitable alloy tube saving significant work in making the device. I've gotten such to behave at tube wall at a thickness approaching 1/4". Hafta say I didn't really expect that one to work but I had appropriate sized parts so it was just a matter of turning a flange and cutting some slots. If it hadn't done the deed I'd have made a proper expander.
|Robert Butler||10/04/2020 19:58:19|
|252 forum posts|
I have used the slide hammer bearing puller which has several attachments suitable for extracting bearings and the debris left from failed bearings in blind housings on a number of occasions. Robert Butler
|Neil Wyatt||10/04/2020 22:36:26|
18668 forum posts
If the bearing is in a blind hole you can just poke the screw through the bearing, otherwise you need to improvise a bridge of some sort.
I've found it easier to improvise a custom puller with a bar with a central threaded hole pulled up towards a bridge piece with a couple of screws heads against the end of the casting.
5505 forum posts
Or you can combine the two and use an angle iron bridge like Neil's above and pass the centre bolt of the commercial puller in the OP through the bridge so when tightened it extracts the bearing.
|not done it yet||10/04/2020 23:35:51|
|6078 forum posts|
For a blind hole you can often use the ‘bread trick’.
You ram in as much doughy bread as you can get in the space behind the bearing. You then hydraulic the bearing out by thumping in a close fitting drift. Works a treat on spigot bearings in engine crankshafts, but a flimsy washing machine tub might not stand it. Other problem might be limited space behind the beating.
Do you have a carbide burr? A last resort, but works. The electric arc welder would be the favourite for me if it is too tight for simple means of extraction.
|Michael Briggs||10/04/2020 23:39:33|
|213 forum posts|
I had a similar problem about a year ago, we also bought a new washing machine. This puller may have been the solution but probably costs as much as 2 or 3 new washing machines !
|Bernard Greatrix||11/04/2020 00:39:46|
|32 forum posts|
I tried something similar to Neils set up and also tried an slide hammer lash up but couldn't get a lasting grip on what was left of the bearing. It was at this stage a friend lent me the puller
At least I now know that the puller would not have worked despite being sold with int/ext suitability.
I eventually removed the outer race with a grinding point but to no avail.
Its water under the bridge now - we have a new washer and I'm glad I didn't fork out for the puller as well.
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