Yet another Honey-Do: Growling washing machine, Pt 1

[DIYSwede]

While awaiting arrival of the new bearings and oil seal, I might as well get prepared for their installation.

The first casting I ever made a few years ago was dirty and porous, so I might as well use it for some temporary job.
All DIY: pouring the melt into Cocoa Milk cans, hence the small groove (from the can's mouth) near the cutting tool.
AlSiZn (of unknown proportions) billet in the chuck, making a pair of bearing mandrels:



Machines excellently, as the high Si content makes for short, curly chips.
Carbide insert at high revs still makes a decent satin finish outta this POS,
though inner porosity is really bad at the center. AlSi dulls HSS tools pretty quick
(I've since learned to only stick to remelting with previously diecast stuff containing AlSi9Cu3Fe)
These mandrels will only bear on the outer race - the rest is relieved. Right pic: Entire "2nd line of defense" unit.



This will only be used as an eventuality, if the following won't suffice - as my "1st line" method for fitting the bearings will be:

1) Heat the bearing aluminum housing up to ca 80 deg C (175 F, well below the glass temp of the surrounding plastic)
2) Freeze the bearing and its aluminium mandrel in the (upside down turned) nozzle of an (upside down turned)
CO2 extinguisher, releasing the liquid CO2 (inside at 20 deg C & 850 psi) to -78 deg C (-108 F).
3) Drop the now smaller bearing & mandrel/ cold sink into the now biggie bearing seat.
4) Clobber in place if needed.
5) Rinse and repeat for the other side's bearing.

If the above won't be sufficient to properly seat them - enter "2nd line of defense" M10 all-thread, bushings, nuts and tiiiighten.
Whack/ tighten 'em and repeat 'til done.
As of now, I don't feel any urge to make some adaptors to the Alfra 75 kN Hand Hydraulic punch press as a last resort.

Anyone's suggestions, cautions on the above methods (i.e. freezing a bearing and then whacking it into place),
or perhaps where I'll find any formulas for thermo-shrinking a 62 & 72 mm ball bearing at -78 deg C
into an aluminium housing (@ +80 deg C) with a total temp diff of 160 deg C?

Thanks for bearing with me (NO pun intended - seriously!) this far thru this long-winded, verbose and still unfinished thread.
(My SWMBO secretly pities all you guys still standing after this barrage of words)

Johan

[Frank S]

One of the few times I strongly recommend wearing a pair of gloves if you have to touch the bearing you don't want your skin to freeze to the bearing.
Roller bearings don't shrink as much as cylindrical steel sleeve bearings or tapered roller bearing outer shells but they will be reduced slightly in diameter. Pre making your mandrels always helps Also something to support the plastic housings as close as possible to where the bearings are to be pressed in is a must
I hate having to press bearings into used plastic housings as I always find them to be brittle from use and age
best of luck

[Scrounga]

When do we get part 3. You’ve got me hooked now

[toeless joe]

When do we get part 3. You’ve got me hooked now

Me too. I'm waiting for the part with the plastic explosives, which is what I wanted to do with my Whirlpool Cabriole, but my wife wouldn't let me.

[Toolmaker51]

Shape of the disguised R2D2, known only as "Sealed Unit", might also be grooved for a seal with a Dremel fitted to a saddle with guides that ride the contours. There are examples within HMT.net, naturally. I'm at a loss for a search term, but it was demonstrated on vertically split motorcycle engine cases.

[PDXsparky]

When I took apart my old Kenmore front loader because of a leak, the plastic shell was a 2 part assembly held together by many bolts. It had a gasket in a grove to seal the parts together. That giant O-ring was the source of the leak.

[DIYSwede]

Thanks for the tips and encouragement, you guys -
'tho I get concerned over all the violent feelings home appliances seem to stir up.
For all these poor souls, you might not yet have seen this video from (the late) Aussie50*?

For other instant gratification- & pleasure-seeking readers: Pt 4 will be on hold a few days, as I'm waiting for the parts package.

Cheers
Johan (who is in no way affiliated with the Wurlitzer-prize nominated novel:"Zen and the art of Washing Machine maintenance")

About Ed Jones/ Aussie50: https://www.austech.info/showthread....uot-Jones-Dead

[Frank S]

Thanks for the tips and encouragement, you guys -
'tho I get concerned over all the violent feelings home appliances seem to stir up.
For all these poor souls, you might not yet have seen this video from (the late) Aussie50*?

For other instant gratification- & pleasure-seeking readers: Pt 4 will be on hold a few days, as I'm waiting for the parts package.

Cheers
Johan (who is in no way affiliated with the Wurlitzer-prize nominated novel:"Zen and the art of Washing Machine maintenance")

About Ed Jones/ Aussie50: https://www.austech.info/showthread....uot-Jones-Dead

Absolutely the funniest appliance destruction video I have seen to date. Pure genius toss a heavy weight in the tub wire the motor direct tot the power cord and plug it in

[PDXsparky]

Absolutely the funniest appliance destruction video I have seen to date. Pure genius toss a heavy weight in the tub wire the motor direct tot the power cord and plug it in

Totally agree. I’ve seen a few but this one made me cry from laughing so much.

[Frank S]

Round door knobs, I don't like them either so we changed our entry door knob out for a proper handle and don't get me started on what I think of our split phase 120v and no 3ph in houses