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Heron's Aeolipile

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Darren:
I'll talk to you privately Ralph about some first hand exp...offline as it doesn't belong here...

Bernd:

--- Quote ---There are a type of bearing that.. I actually dont know the term for. BUT... its a needle bearing that has a bearing surface in the vertical component, like a conventional bearing race. However it also has a shoulder, and a thrust bearing surface on the bottom, with needle bearings.

--- End quote ---

From the picture you posted I would call that both a radial and axial bearing. I don't think they make them as small as Ralph would need them. Although he could make his own axial bearing using some ball bearings.

I'll leave it at that. Don't want to hi-jack the thread with other info.

Bernd

sbwhart:
Hi Ralph

Bin thinking about your bearings.  :scratch:

Come up with cheap and chearful option you could try on your prototype.

What you need

1:- Ball bearing say 1/8" dia ther's plenty of places you can get them
2:- Silver steel say 1/8" same as the bearing.
3:- Phos bronze.

What you do

1:- Virtical bearing (the spinning ball sits on this) small bush with a blind hole 1/8 dia with the ball bearing at the bottom, the spinning ball connected to the silver steel shaft you can harden and nicely polish it, this will give you a point contact low friction bearing.

2:- Horizontal bearing at the top of the ball just the 1/8 silver steel running in a plain phos bronze bush.

I hope you follow this.

I'll post a C-O-C tonight when I get home

This project's all balls  :lol:  :lol:

Have
 :wave:
Fun

Stew

bogstandard:
Stew,

I think Ralph is going to use a single bearing due to the burner having to go at the bottom.

John

sbwhart:
Ha yes   :doh: didn't think that one through.

Cheers
 :wave:

Stew

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