Everything Else

So, what is this thing? Do you know? Tell me!

looks a lot like a hole saw.

robespierre wrote: looks a lot like a hole saw.

That was my first thought, maybe one with Quick-Lock or anything like that (look at the dual sided chamfer) but I'm still not sure. Anyone knows for sure?

No idea, but in the non-human world wheels (?) have evolved only once.

Oskar45 wrote: No idea, but in the non-human world wheels (?) have evolved only once.

Hahah!, good point, Oskar45! ...we could consider it solved, because a wheel it is!
Greetz!

P.S.: ...but now, seriously: anyone?

It's a toothed coupler, typically used to connect a motor to something that needs power, like a pump or... Something!

vishnu wrote: It's a toothed coupler, typically used to connect a motor to something that needs power, like a pump or... Something!

Yes, I thought about it too, and I'm very familiarized with such kind of semi flexible couplers. But then, does not looks slightly too narrow the gap betweet tooths?

First glance looks like a coupler...but I dont believe so.

If you look again, you will see wear marks running perpendicular on the teeth, around the OD/circumference. So the outside has rubbed against another surface. Having CNC experience, this is indicative of being a tool of some kind to me. Quite possibly part of a collet system to hold a tool is what I believe it is.

I can't tell in the pictures, but is it tapered? With the opening getting smaller towards the end of the "teeth"? If so, I'd be 99.9% certain it is a collet. The wear marks would be caused by the collar that goes over it, used to tighten/"close" the teeth around the tooling it was meant to hold.

Here's similar to what I'm referring to -

I would guess... rotary encoder.

Hey, by the way: Happy Independence Day to the U.S., and Happy Birthday to myself... yep... it is today!

Happy birthday chap..

GeneratriX wrote: Hey, by the way: Happy Independence Day to the U.S., and Happy Birthday to myself... yep... it is today!

I just launched a pyrotechnic device in your honor, Diego! Cheers!

uunix wrote: Happy birthday chap..

Thanks! It was a fun little party!

josehill wrote: I just launched a pyrotechnic device in your honor, Diego! Cheers!

That explains it all, josehill... I was curious, because at first sight I thought someone was greeting to our National Futbol Team with fireworks, but then, on last minutes I noticed how wrong I was! Whatever; congrats to the Chile Futbol Team! Chapeau!

Hey!, thanks for the fireworks!

zagnut wrote: First glance looks like a coupler...but I dont believe so.

Me neither!

zagnut wrote: If you look again, you will see wear marks running perpendicular on the teeth, around the OD/circumference. So the outside has rubbed against another surface. Having CNC experience, this is indicative of being a tool of some kind to me. Quite possibly part of a collet system to hold a tool is what I believe it is.

If it serves as a new set of clues...

There are also wear marks running around the ID/circumference.

The shank ends into a diameter close to 11.15mm, pretty close to the end from a Morse Taper #2, but it is cilindrical.

zagnut wrote: I can't tell in the pictures, but is it tapered?

There is no thread.

zagnut wrote: With the opening getting smaller towards the end of the "teeth"?

Nope!

zagnut wrote: If so, I'd be 99.9% certain it is a collet. The wear marks would be caused by the collar that goes over it, used to tighten/"close" the teeth around the tooling it was meant to hold.

Well, the shank suggests something suited for Quick Change, I think that is a fact.

But hey!, what about some kind of nautical capstan, or ratchet mechanism?

guardian452 wrote: I would guess... rotary encoder.

Hey!, good catch! ...but why would you charge with such a mass the device to sense? And have you noticed the tiny holes all around the shank? Does not looks like the classic spring loaded Ball-Lock to provide some audio/mechanical feedback to some kind of crank-loaded device?

Three new clues!

Happy late birthday Diego!!!

Perpendicular wear marks in the ID could be indicative of a tool holder as well.

Nautical capstan or ratcheting device....hmmmm, possibly. I'm not familiar with anything nautical however.

How about possibly some type of centrifugal clutch, the inner race?

zagnut wrote: Happy late birthday Diego!!!

Thanks!, there is still some pie at the fridge anyway!

zagnut wrote: Perpendicular wear marks in the ID could be indicative of a tool holder as well.

Sure, but I think the teeth are slightly too hard and too short for a collet or tool holder.

zagnut wrote: Nautical capstan or ratcheting device....hmmmm, possibly. I'm not familiar with anything nautical however.

Think of it as the place to attach some removable crank!

zagnut wrote: How about possibly some type of centrifugal clutch, the inner race?

That looks like a BIG possibility too!

How about a picture with a ruler to see actual size?

thinking about it, I almost think it's a centrifugal clutch for a snowmobile.