this post was submitted on 07 Apr 2024
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I fixed my dad's angle grinder with a ball bearing I salvaged from my gerbil's old excercise wheel a few years back. (i.ibb.co)
submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]
25 comments fedilink hide all child comments
 

It was even the same brand. I love when hoarding materials pays off.

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[–] [email protected] 58 points 7 months ago* (last edited 7 months ago) (3 children)

6201RS

  • 6 - type code: single-row, deep groove ball bearing
  • 2 - series / robustness: (2 corresponds with 'light', which is more durable than 0, but less durable than 3 or 4)
  • 01 - size code: 12mm bore (inner diameter)
  • RS - grease seal: rubber seal one side (no seal would be '6201', both sides sealed would be '6201-2RS'. Z and ZZ are used similarly to indicate presence of steel shield(s))

The 6201 is a good fit for this application, and providing the gerbil wasn't too hard on it, should last a long time.

[–] [email protected] 16 points 7 months ago (1 children)

Comments like these are why I periodically still love the internet.

[–] [email protected] 10 points 7 months ago (1 children)

I kinda needed this today, thank you. <3

[–] [email protected] 3 points 7 months ago* (last edited 7 months ago)

I know you have equally developed knowledge and opinion on a variety of things, like sliced bread or boot rubber compound

[–] [email protected] 8 points 7 months ago

This guy bearing.

[–] CosmicTurtle 5 points 7 months ago

I recently took apart my weed whacker and it used the same ball bearing. I actually learned that these ball bearing casings (?) are super common. I replaced mine with a skate board bearing and it's as good as new.

[–] [email protected] 24 points 7 months ago (1 children)

So what do we think folks? Underbuilt angle grinder or overbuilt gerbil wheel?

[–] zarcher 6 points 7 months ago (2 children)

Its a mass produced bearing type. Most likely the cheapest option for both devices. Optimizing a bearing for a gerbil wheel seems like the real overengineering in my opinion.

[–] DogWater 5 points 7 months ago

This is one of the counter intuitive things about production at scale. I remember I added factory cruise control to a Mazda 3 by buying the steering wheel with the buttons and having a technician flip a switch in the ECU. Everything else was already there.

They never made any additional changes to non equipped cara because it's cheaper to just produce 1 part or 1 configuration and digitally lock it out. 2500$ option with a 200$ fix.

[–] [email protected] 1 points 7 months ago

Thing is, when I had gerbils, their exercise wheel turned on a cylinder of plastic inside another cylinder of plastic. I also had one that was a wire wheel with sheet metal spokes and a wire base, the "bearings" were the wires of the base poked into holes in the spokes. A gerbil wheel having a ball bearing at all seems a little bit extra to me.

[–] AnyOldName3 17 points 7 months ago

Not all bearings are created equal. This might last for years. This also might explode into fast-moving metal shards in a day. It shouldn't be a big problem if it does, as an angle grinder should be built to contain exploding bearings, but it might be worth ordering a higher-spec bearing to have on hand before you need it in a hurry.

[–] Zer0_F0x 13 points 7 months ago (1 children)

Those look like skateboard bearings to me, they are quite common. A relatively high quality set of 8 bearings is like 15 bucks if you have a skateshop nearby

[–] [email protected] 1 points 7 months ago

Reds. Look for Bones Reds.

[–] [email protected] 11 points 7 months ago (1 children)

That's either a very over-engineered hamster wheel, or that grinder was under spec'd.

[–] [email protected] 5 points 7 months ago (1 children)

Yeah, it's a Ryobi grinder and the excercise wheel was quite high quality one.

[–] [email protected] 6 points 7 months ago

Yep, pretty sure there's some overlap in that, lol.

[–] [email protected] 7 points 7 months ago

That's a balls-y move.

[–] wiLD0 4 points 7 months ago

They don’t make gerbil exercise wheels like they used to.

[–] [email protected] 3 points 7 months ago

That's dope man!

[–] OldManBOMBIN 2 points 7 months ago (4 children)

What happened to your gerbil, op?

Your answer will be highly scrutinized.

[–] Diplomjodler3 5 points 7 months ago (1 children)

Something involving angle grinders.

[–] OldManBOMBIN 1 points 7 months ago

o7 He was the bravest little cosmonaut trainee

[–] bitchkat 3 points 7 months ago

OP flushed him but that plugged the pipes so he had to use a drum auger clear the blockage.

[–] [email protected] 3 points 7 months ago

They used the old one as a toilet and it made the entire terrarium smell like piss

[–] [email protected] 2 points 7 months ago

Safely stored in rectum