"Bass, Jerry" wrote:

I do not think there is enough room for two bearings. The bearing

rotates

at

engine minus prop speed. as the bearing is on the sun to planet

carrier.

Jerry Bass

Mark wrote>
Jerry, I didn't know you were on the ACRE's group, as I saw the details

of

your 2.85:1 thrust bearing mod posted by some one else. Do you perform

the

gearbox mods commercially? If I had known you were here I would have

asked

your permission before I redrew your thrust bearing cap in CAD and

posted

it

on the best practices site. If you don't mind me leaving up, I would
appreciate any other recommendations you have for improving the Ross
gearboxes.

"Bass, Jerry" wrote:

I posted the Cad drawing to Paul's Net, and also sent it to Ian, in
Australia.  Each Ross has different clearances and may require custom mfg.
I have not opened mine, about 12 hours, but will soon.  Go ahead, let
everyone make there own.

The photos on the Net from Ian, are like the one I built.  Yours may

differ

as to the way Ross set the sun gear.  He had to machine the bell housing

on

mine to clear. He even cut the outer edge of the seal to clear the bolt
heads.

Jerry Bass

"Bass, Jerry" wrote:

If you do this trick, you also need to open a gap between the Sun Shaft and
the eccentric shaft. I have added a .030 gasket between the Bell housing and
the gearbox to give about .021" clearance.

Jerry Bass

 
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