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Ken,
What planetary ratio was your "ROSS" redrive that lost the planet bearings ?? As
I recall the ROSS has a rather primative lube system that led to primature failures
to more than one of them........Plus your installation probably put the supreme test
to these redrives (nitrus)........I would guess that Tracy's steel housing , 6 planet
drives with pressure lube (as in the transmission) would stand up much better.....
IMHO
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from Ken Welter <rotary.coot@verizon.net>: --------------
I will have a pilot shaft that will have a flange on it that the spline will bolt to and the pilot shaft will go through the seal and to the damper.
As for the the 4.4 inch ring gear the C-6 units that give the 2.17 ratio are 4.4 inch diameter but the ring gear is not the problem with the C-6 its the sun gear that likes to chip, also a problem is the planet bearings are a problem any time they are used where the planet is spinning like the 2.85 or 3.17 rather than being held solid to to case like the 2.17 ratio, this is also a concern with the 3.21 Dodge as the planet is going to be spinning and solution to just trash can the planet set every couple hundred hrs as they are so cheep and in fact I will probably replace the sun gear also, hell the whole gear set only cost 150 bucks so that's cheap insurance as that costs a hell of a lot less than a tank of gas in my plane.
By the way the thing that finally killed my Ross gearbox was the planet bearings went out.
All and all the C-6 seams to be fine for the little rotary but they have a vary bad track record Compared to the GM or Dodge in the big rig trucks.
Ken Welter
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