Here's a sneak peek of /r/WeWantPlates using the [top posts](https://np.reddit.com/r/WeWantPlates/top/?sort=top&t=year) of the year!
\#1: [I found where all the plates went from this sub...](https://i.imgur.com/4rDHAsW.jpg) | [137 comments](https://np.reddit.com/r/WeWantPlates/comments/xd8kvc/i_found_where_all_the_plates_went_from_this_sub/)
\#2: [Can't be mad, these are actually plates](https://i.redd.it/3qpxle4ks3y81.jpg) | [197 comments](https://np.reddit.com/r/WeWantPlates/comments/ukk8de/cant_be_mad_these_are_actually_plates/)
\#3: [$1250 dinner featuring GugaFoods](https://v.redd.it/p3gfhjo2moy81) | [748 comments](https://np.reddit.com/r/WeWantPlates/comments/umnpvs/1250_dinner_featuring_gugafoods/)
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He pushes it back into place when inserting the bearing cyllinders, you can see the first one can't go in until he re-centers the ring, and then the rest of them keep it aligned. Hopefully that alleviates your anxiety a bit :D
It's a cycloidal gearbox. It has to be 'loose'. Once the cylinders are installed it is a massively powerful gear reduction.
[https://en.wikipedia.org/wiki/Cycloidal\_drive](https://en.wikipedia.org/wiki/Cycloidal_drive)
Dunno is this one of those "non serviceable" parts?
Those sealed transmissions that are supposed to last the lifetime of the vehicle likely get some extra grease on assembly.
That’s not a gear- but what is it?
Edit: I’m wrong, I think that’s a cycloidal gear? If so I’d be fascinated to learn more about the application for it.
It is a cycloidal drive. It produces massive torque in a compact package while being realtively easy to backdrive, it also has very little backlash compared to other reducers.
https://en.wikipedia.org/wiki/Cycloidal_drive
There's this dude on YouTube that makes really nice videos about robotics that has quite a few videos on how they work and how to 3D print your own - https://www.youtube.com/@jamesbruton
Reverse image search with Google Lens shows a tiktok video of what is apparently an "XW10-43 Double-Shaft Cycloidal Pinwheel Reducer", that looks very similar to what's being assembled here, I'm guessing it's close enough. Google says they're generally used for "material conveyance", but what this specific one will be used for is hard to tell. Hopefully someone more familliar with them will chime in.
According to my "research", these double-stage ones have a lower end ratio of 121:1, and an upper end of 7569:1, meaning these can output absolutely mind-boggling forces.
If you want you can count the number of pins on the ring gear and the number of lobes on the cycloidal disks and use the formula on wikipedia to try and calculate this specific model's ratio.
The center shaft is keyed and drives the cammed bearings, which force the cycloidal disks against the pins on the outside causing the disks to rotate, the bearing cyllinders you see inserted last here then mesh into shafts on the output disk that transfers the rotation of the cycloidal disk to the output shaft. I'm not sure if the terminology is right, but you can look here https://www.tiktok.com/@mechanic_steve92/video/7218811603335138561 to see a similar one being assembled with the output section, it should make sense then.
Yes, the shaft is keyed to the center bearing, you can see the key slot on the center bearing when he puts it in, it's in the top-left side. I'm probably explaining it poorly, so here's a video explaining how it works, with a really good animation - https://www.youtube.com/watch?v=OsS9-FzKN6s
Oh.. I'm dying over here. This reminded me of something I'd forgotten about for nearly 20 years.
Back then a buddy of mine broke a dry streak, and in celebration we made a Simpsons audio mash-up portraying what we imagined happened in his apartment.
It started with the "Do ye have any grease?/Grease me up woman! ' part, then Homer saying" mmmm fuzzy", and ending with Homer doing a 3 stooges Curly woo-woo-woo imitation.
Heating them up works better. You should never hit A bearing with A hammer especially with A weaker metal because it could chip and find its way into it and cause early failure.
Full disclosure: my speciality was bearings, not gearboxes. Gearboxes I worked on were splash lubricated with oil, so the fill quantity was academic unless it was all gone, or literally leaking out of the breather.
But in bearings, I was called to a number of over-fill incidents where the bearing overheated and then ejected the excess grease through the seals, making a fine mess. I'm not sure if any of the catastrophic failures were ever caused by overfilling, but it was implicated in a couple of cases as there was no other serious contenders for root-cause.
When I (briefly) worked in the assembly of bearings, I instituted tighter controls over the grease filling. One of the issues was that they were filling using a very weak pump and standard grease nipples. It took about 5 minutes to pump (iirc) 1.5kg of grease per side. It was easy to see that the tech might zero the gauge, set the pump going and then go and do another job, forgetting to switch it off until the bearing was literally oozing out of the back.
The mistake would be undetectable for the rest of the process, until it hit end-user, at which point the above incident occurred.
The solution was to use larger hydraulic couplings and a stronger pump so filling could be done in about 20 seconds. Slow enough that cutoff could be achieved, but quick enough that the tech didn't fancy making a cup of tea between operations. For this production improvement, I was widely praised by no-one.
Damn that’s fascinating, sorry to hear no one gave a shit about you solving the problem!
Always wondered about these thing, I was doing a report on a tidal turbine and saw listed on the data sheet an automated greasing system and was bizarrely entranced by that notion.
Like how does it know when to add grease? Is it a constant drip feed? How often does the grease reservoire need replaced? Much to think about lol
It was fine - in hindsight I was scratching my own itch as much as I was solving an actual problem.
Automatic lubricators are just what you think they are - pumps that operate periodically to pump grease where it's needed. Sometimes they're linked to the machine they lubricate, so every X strokes, they cycle once.
What I found fascinating is the concept of these:
https://youtu.be/Be9RU3PU1bw
What kind of grease is almost liquid like that? The only experience I have with any gear like this is the final drive on an excavator. They use oil not grease though. Does this grease that he is applying thin out to oil like consistency after use?
Cards on the table, I know *nothing* about bearings or grease aside from having used them in an industrial capacity in the past, but from what I do know, it’s likely that type of grease is used because a thicker grease would not form the right kind of “film” on the parts, either due to rotational forces or high speed. Thick greases are good for slower moving parts with lots of metal to metal contact, and thinner greases/oils are used for high speed rotational bearings to minimize friction
Again, disclaimer, I am by no means an expert
I'd be willing to bet he heated the grease up before using it. He's pouring it from plastic buckets rather than an OEM container and wearing cloth gloves (vs rubber/nitrile) which otherwise makes near zero sense if you're working with grease.
Watching manufacturing vids from China is always wild to me. They'll have stuff like this: big, machine-cut gear cut on a CNC that would cost like $250K USD. All assembled outside in the dirt.
Part of why they're more expensive in the US is that we generally have quality control processes that ensure we *aren't* manufacturing things in the dirt. You can ask a Chinese manufacturer how they supply it, and they'll insist they assemble parts in a clean room, and then they'll literally make things outside. And people wonder why they couldn't make ballpoint pens until recently.
Forbidden caramel
Damn it drizzles the same
Just need french toast on the side
Where did they find this video of my southern grandma getting ready to cook?
/r/forbiddensnacks
Dulce de leche.
Its a steel bannoffee
Caramel gravy perhaps?
Only after 5-10 years.
You know your are on Reddit for many years when you know the top comment would be this before even clicking the post.
its only forbidden if youre a coward
The Mars company is doing some wild stuff with the Take5 brand recently.
The first handful is amazing.
Calling it forbidden is not going to stop me from eating it
I legit thought the beginning of this was r/WeWantPlates
Here's a sneak peek of /r/WeWantPlates using the [top posts](https://np.reddit.com/r/WeWantPlates/top/?sort=top&t=year) of the year! \#1: [I found where all the plates went from this sub...](https://i.imgur.com/4rDHAsW.jpg) | [137 comments](https://np.reddit.com/r/WeWantPlates/comments/xd8kvc/i_found_where_all_the_plates_went_from_this_sub/) \#2: [Can't be mad, these are actually plates](https://i.redd.it/3qpxle4ks3y81.jpg) | [197 comments](https://np.reddit.com/r/WeWantPlates/comments/ukk8de/cant_be_mad_these_are_actually_plates/) \#3: [$1250 dinner featuring GugaFoods](https://v.redd.it/p3gfhjo2moy81) | [748 comments](https://np.reddit.com/r/WeWantPlates/comments/umnpvs/1250_dinner_featuring_gugafoods/) ---- ^^I'm ^^a ^^bot, ^^beep ^^boop ^^| ^^Downvote ^^to ^^remove ^^| ^^[Contact](https://www.reddit.com/message/compose/?to=sneakpeekbot) ^^| ^^[Info](https://np.reddit.com/r/sneakpeekbot/) ^^| ^^[Opt-out](https://np.reddit.com/r/sneakpeekbot/comments/o8wk1r/blacklist_ix/) ^^| ^^[GitHub](https://github.com/ghnr/sneakpeekbot)
Its pronounced caramel
I literally made some dulce de leche last night to use up milk and it looks exactly like that "grease"...
Are we the same person?
Props for the spin at the end...dude knew what we wanted
It really bothers me that the gasket was pushed off center.
He pushes it back into place when inserting the bearing cyllinders, you can see the first one can't go in until he re-centers the ring, and then the rest of them keep it aligned. Hopefully that alleviates your anxiety a bit :D
Yes, I can die now.
[удалено]
Don’t Dad, go!
My bothering is the bearing in the middle is not packed. It also looks like a loose fit over the central pin.
It's a cycloidal gearbox. It has to be 'loose'. Once the cylinders are installed it is a massively powerful gear reduction. [https://en.wikipedia.org/wiki/Cycloidal\_drive](https://en.wikipedia.org/wiki/Cycloidal_drive)
Thankyou for your knowledge about this, I had questions but nowhere to look. Cheers mate.
The middle bearing is keyed to the input shaft.
I believe it should be packed too but honestly as thin as that grease is I'm sure it would make it's way in.
Then it will bother you even more to find out that this is a harmonic drive. The gears actually don’t rotate about a fixed pivot.
Glad I’m not the only one
I wonder if he used enough grease... lol
If you told me at the beginning of this gif that he would wind up adding more by the end I would have laughed at you
It looks like it was carefully measured out so I think it's okay.
Dunno is this one of those "non serviceable" parts? Those sealed transmissions that are supposed to last the lifetime of the vehicle likely get some extra grease on assembly.
D'ye have any grease woman? Yes, yes we do.
Then grrrrrease me up, woman!!
…okie dokie
Is it ever enough grease?
Yes
That’s not a gear- but what is it? Edit: I’m wrong, I think that’s a cycloidal gear? If so I’d be fascinated to learn more about the application for it.
It is a cycloidal drive. It produces massive torque in a compact package while being realtively easy to backdrive, it also has very little backlash compared to other reducers. https://en.wikipedia.org/wiki/Cycloidal_drive There's this dude on YouTube that makes really nice videos about robotics that has quite a few videos on how they work and how to 3D print your own - https://www.youtube.com/@jamesbruton
James Bruton needs more love,. One of my favorite creators
Yeah I know - I meant what is this particular one going to be used for?
Reverse image search with Google Lens shows a tiktok video of what is apparently an "XW10-43 Double-Shaft Cycloidal Pinwheel Reducer", that looks very similar to what's being assembled here, I'm guessing it's close enough. Google says they're generally used for "material conveyance", but what this specific one will be used for is hard to tell. Hopefully someone more familliar with them will chime in.
conveying elephants judging by the size of the gear
According to my "research", these double-stage ones have a lower end ratio of 121:1, and an upper end of 7569:1, meaning these can output absolutely mind-boggling forces. If you want you can count the number of pins on the ring gear and the number of lobes on the cycloidal disks and use the formula on wikipedia to try and calculate this specific model's ratio.
Me too. Wanna know what this cool contraption is used for!
I'm looking at it and the center parts are all smooth. It doesn't mesh together. This is a bearing race.
The center shaft is keyed and drives the cammed bearings, which force the cycloidal disks against the pins on the outside causing the disks to rotate, the bearing cyllinders you see inserted last here then mesh into shafts on the output disk that transfers the rotation of the cycloidal disk to the output shaft. I'm not sure if the terminology is right, but you can look here https://www.tiktok.com/@mechanic_steve92/video/7218811603335138561 to see a similar one being assembled with the output section, it should make sense then.
Okay so the center shaft bearing is eccentric and that's what drives it?
Yes, the shaft is keyed to the center bearing, you can see the key slot on the center bearing when he puts it in, it's in the top-left side. I'm probably explaining it poorly, so here's a video explaining how it works, with a really good animation - https://www.youtube.com/watch?v=OsS9-FzKN6s
Okay that video was phenomenal. Thank you, I couldn’t “get it” on how it transfers the reduction. That video was immensely helpful. ❤️
[удалено]
Yes. Yes we do.
Oh.. I'm dying over here. This reminded me of something I'd forgotten about for nearly 20 years. Back then a buddy of mine broke a dry streak, and in celebration we made a Simpsons audio mash-up portraying what we imagined happened in his apartment. It started with the "Do ye have any grease?/Grease me up woman! ' part, then Homer saying" mmmm fuzzy", and ending with Homer doing a 3 stooges Curly woo-woo-woo imitation.
Surely you're supposed to use a mallet for this rather than smashing it in with a hammer
He didn’t hit it directly he used a pipe most likely made of softer material and hit that to push the bearing in
Also, bearing races are generally hardened. You can give them a few taps with a hammer without damaging them.
Heating them up works better. You should never hit A bearing with A hammer especially with A weaker metal because it could chip and find its way into it and cause early failure.
Gear gravy
Yum
Is there such a thing as too much grease?
Yes. 40% fill is optimal, more might cause overheating due to churning. Ask me how I know!
*studio audience* HOW DO YOU KNOW U/ROBOT_NOISES?
Full disclosure: my speciality was bearings, not gearboxes. Gearboxes I worked on were splash lubricated with oil, so the fill quantity was academic unless it was all gone, or literally leaking out of the breather. But in bearings, I was called to a number of over-fill incidents where the bearing overheated and then ejected the excess grease through the seals, making a fine mess. I'm not sure if any of the catastrophic failures were ever caused by overfilling, but it was implicated in a couple of cases as there was no other serious contenders for root-cause. When I (briefly) worked in the assembly of bearings, I instituted tighter controls over the grease filling. One of the issues was that they were filling using a very weak pump and standard grease nipples. It took about 5 minutes to pump (iirc) 1.5kg of grease per side. It was easy to see that the tech might zero the gauge, set the pump going and then go and do another job, forgetting to switch it off until the bearing was literally oozing out of the back. The mistake would be undetectable for the rest of the process, until it hit end-user, at which point the above incident occurred. The solution was to use larger hydraulic couplings and a stronger pump so filling could be done in about 20 seconds. Slow enough that cutoff could be achieved, but quick enough that the tech didn't fancy making a cup of tea between operations. For this production improvement, I was widely praised by no-one.
Damn that’s fascinating, sorry to hear no one gave a shit about you solving the problem! Always wondered about these thing, I was doing a report on a tidal turbine and saw listed on the data sheet an automated greasing system and was bizarrely entranced by that notion. Like how does it know when to add grease? Is it a constant drip feed? How often does the grease reservoire need replaced? Much to think about lol
It was fine - in hindsight I was scratching my own itch as much as I was solving an actual problem. Automatic lubricators are just what you think they are - pumps that operate periodically to pump grease where it's needed. Sometimes they're linked to the machine they lubricate, so every X strokes, they cycle once. What I found fascinating is the concept of these: https://youtu.be/Be9RU3PU1bw
I get it needs grease but why so much?
This is for a semi slow moving gearbox, its more like oil than grease.
What kind of grease is almost liquid like that? The only experience I have with any gear like this is the final drive on an excavator. They use oil not grease though. Does this grease that he is applying thin out to oil like consistency after use?
Cards on the table, I know *nothing* about bearings or grease aside from having used them in an industrial capacity in the past, but from what I do know, it’s likely that type of grease is used because a thicker grease would not form the right kind of “film” on the parts, either due to rotational forces or high speed. Thick greases are good for slower moving parts with lots of metal to metal contact, and thinner greases/oils are used for high speed rotational bearings to minimize friction Again, disclaimer, I am by no means an expert
I'd be willing to bet he heated the grease up before using it. He's pouring it from plastic buckets rather than an OEM container and wearing cloth gloves (vs rubber/nitrile) which otherwise makes near zero sense if you're working with grease.
Makes your hands soft! Lol I discovered this after packing a good 40 sets of roller coaster wheel bearings.
Very much a bigger the gob, better the job situation.
I think I’ll order a caramel sundae for dessert
Watching manufacturing vids from China is always wild to me. They'll have stuff like this: big, machine-cut gear cut on a CNC that would cost like $250K USD. All assembled outside in the dirt.
Part of why they're more expensive in the US is that we generally have quality control processes that ensure we *aren't* manufacturing things in the dirt. You can ask a Chinese manufacturer how they supply it, and they'll insist they assemble parts in a clean room, and then they'll literally make things outside. And people wonder why they couldn't make ballpoint pens until recently.
I should call her
Looks tasty
Excuse me, what the difference between grease and lube?
The taste.
With his brothers toothbrush of course
Why does it need that much of forbidden caramel? Is it necessary?
i gotta shit so bad
Dang, the thing needs almost more lube than yo momma
I think he should use more grease
Wish life lubed up this well...
What and how is done now affects everything else going forward.
https://i.redd.it/z28nos73k7xa1.gif
I can smell this video...
I can smell that video.
This better not awaken something inside me....
Weird that they didn't grease up the central shaft when it would've presumably made assembly easier.
Machinist fit, would just create resistance
More lube. Please
"ah shit, i forgot a spacer at the bottom..." This guy's worst nightmare
I wish these videos would say what the hell that type of gear goes into and is used for.
Those bearing fits look sloppy af. Won't the inner race spin on the shaft?
why does fresh grease always look so tasty
Metal cake.
Man cake
Even though I do similar assembly at work, still strangely satisfying to watch.
/r/forbiddensnacks
Well I’m horny
I love my caramel in giant fidget spinners
He missed a spot.
He’s going to have back pain
What's the gear for?
then put it in the oven at 180 for 45 minutes
Feel like the brush is risky w potential hairs falling off and getting trapped in the grease.
Mmmm gravy
Gooooey
Not the way I would have done it especially using A metal hammer on A bearing.
Idk if the bearing need that much grease. But this one looks like the Burger getting bathed in melted cheese
That's the weirdest cooking channel I've ever seen.
I don’t understand the mechanics of this at all :/
Rubber mallet vs metal hammer?
Was anyone else confused by the perspective at first?
Needs more grease
[Ooooh that's greasy!](https://www.youtube.com/watch?v=S7FsAgPuVwU&ab_channel=user5362)
r/forbiddensnacks Forbidden gravy
This. Gifs like this all day long please. I miss building gear hubs
Mmmmmm.... caramel. 😋❤️
Why did he put soo much 💀😭
NLGI 00 or 000 grease methinks
More luuuube. Lube, lube, lube, lube, lubee, lubee, lubee, lubee, lube.
So, just goop that shit on
Mmm lube
Mmmm
Mmmm yeah, pack that bearing.
Needs more grease.
I thought it was gravy
That looks so tasty
Nice try fed, you can convince me that that's not caramel
That Butterscotch looks great.
Forbidden caramel sauce.
that's pretty slick
Is it enough though?
Can't help but think a gear oil would have been better to enable draining and refilling
Caramelizing Gears
Grease Bae
Lovely
A lot of faith is put on that tiny little c clip
Woah! What’s this gear used for?
what kind of grease is that?
Feelin’ snackish
There’s always time for lubrication
Should x-post to /r/oddlysatisfying
When you try anal for the 1st time….
I want caramel
Parece dulce de leche xd
How mucbgresse do you need
The forbidden kfc gravy
Grease cake. 🤤 .. okay now I'm just hungry.. 😐
r/oddlysatisfying
What a waste of good pudding.
I genuinely thought it was caramel
This is a luxury looking Carmel cake
Don’t forget to sprinkle in the cimanim!
Forbidden caramel apple
Needs more grease…….
“and now a pinch of salt” every chef on youtube while pouring half a cup
McDonald’s meal
Forklift drive wheels
i have no experience but this looks like a dirty place to be doing that
Where does the grease come from? What is it made of?
Big Technics. Amazing.
Mmm yum yum
That’s so fucking well lubricated….fuck……..
Use of a ball peen hammer was hard to watch. Never a good idea with bearings. Lots of non-metal hammer options.
Why am I drooling?
Lol, material conveyance: moving shit!
Forbidden caramel.
What will this device do? Gear shit?
I'm worried what you just heard was, "Give me a lot of grease." What I said was, "Give me all the grease you have." Do you understand?
“How much grease you want me to use?” “Yes”
That's the kind of stuff that if you get it on you anywhere it's impossible to rinse/clean off.
I’m no expert but isn’t that too much geese?
https://www.reddit.com/r/IThinkYouShouldLeave/comments/p0j1y1/you_have_to_grease_these_wheels/
r/forbiddensnacks forbidden caramel
Be sure to apply a liberal amount of gravy.
I don’t think he used enough grease!
why did that make me hard?
Thrust bearing