I'd need a vice and a press drill for that, I have neither :P They're on my list of things to buy though, as I need the vice for woodwork and bike repair/maintenance (freewheel locking rings have a lovely habit of locking up really tightly...) + accurately drilling out holes in plastic/aluminium for 3D printed nerf blasters. But I need to finish the PC build, so no hardware for the moment ;-;

> I'd just suggest doing a manual pull check once it's done to make sure you're not going to be three-wheeling it home.

Hah, I can easily carry the stupid thing it that happens. After all it's at home and only for home use.

Worst comes to worst I'll no. 8 wire it and jerry-rig a solid solution. Already had to do that with a flat pack bed that fell apart due to too short screws and no anchors for the bolts.

Or I can just transplant the new motor into the old lawn mower, since it's wheels have stayed on. Unlike it's metal exhaust cage, which is still held in place by annoyingly thick wire from old climbing plant fence support wire.

It's over 1cm in diameter, too blobby (hand cutting a lawn with a sickle is "fun") though to haul it out of the garage to check. Think it's about 1.2-1.4cm roughly. Hence why I thought it could take a thread and nut.

Not speed nuts, more like these: https://www.anzor.co.nz/washers/internal-tooth-lock-washers Only with thinner metal on the teeth and the teeth are wider too.

[edit] - bless google image search, even with inaccurate search terms it can be rather useful :3 As it appears these are very much the same as the ones on the axles: https://www.ubuy.co.id/en/product/R9C66IW-oiiki-200pcs-m2-m2-5-m3-m4-m5-internal-tooth-starlock-washers-quick-speed-locking-washers-push-on-sp

>You could also look into how the axles are held on, and if you can replace them with a threaded rod, though this is much less likely possible unless you have decent welding or riveting skill.

Hmmmn, I'll look into how the axles are attached, given how cheap everything else is it's probably just held in place with bolts. Though vis the thread's breaking - shouldn't that not be an issue? Weight bearing axles are usually steel and the one on this mower appears chromed. Plus, while I'm not the gentlest, if it gets stuck I know it's easier to stop and check what's happened than to to just brute force it.

There's not, there's only locking washers. Basically a metal ring with with slots cut out radially and pressed on that are set towards the outside, that hold in place 2 plastic sleeves that act as a bearing. Those are also pressed in pretty hard and I had to hammer the outer one it to get it to seat properly.

This is all covered by a plastic cap that is easy to pry out and appears to have little mechanical strength.