Working with planetary

[John T]

Hi Art
I?m puzzling on how to get a planetary working off a shaft. I would like to have a planetary gear with an arbor and pivot on one plate of a clock and a pinion above it from the other plate.

Essentially I want a ?spider? and ?spacer? to mount the planetary that would make the teeth clear on the inside of the planetary so that a pinion can be clear of the spider.  (This is really hard to describe). Any way can you think of a way to mount the planetary on a spider so that the gear will run true on its shaft.?

[ArtF]

I cant quite picture it, do you mean you want a planetary gear with perhaps its back closed in so a shaft can be on it in the center, and then a planet on another shaft going off to another
level?

Art

[John T]

Hi Art
You got it!

It?s trying to ensure that the planetary is ?perfectly? aligned with its shaft. Eliminate any wobble.
Then the large gear powers the pinion.

[ArtF]

Hi:

Hmm, to ensure its perfect you could always generate the planetary, and a gear of the same mos/tooth cnt thats 1/2 the thickness. The gear will fit inside the planetary, push it in and bond it.

That gives you a planetary with a shaft in the center and enough room for a planet gear..

Just one way..

Art

[John T]

That sounds good I?ll try that

John

[John T]

Hi Art,
I tried your suggestion and it works beautifully - there is still a couple of steps to get what I want. But I thought I'd post this for now.

I'll post the final when I get it done

[John T]

Hi Art,
Your suggestion worked perfectly - I have made a stand-off from the planetary and then a bridge on the stand-offs and finally using the centering gear was able to drill the bridge and use an arbor and get a non-wobbling rotation of the planetary.

[ArtF]

  Awesome, way to go.

Art
:)