--
  Hello Paul, Ed my names Graeme, I appreciate you volunteering
 your time to take a close look at the psru/flex plate refab.
 I would like to be able to play with this too but I don't have
 the right "toys" to do this work. So what I would like to offer
 is some some small capitol, a bit of cash to help subsidize
 your efforts. I will be requiring a psru in the near future and
 if you have the equipment and the time to work on this, I would
 like to contribute some 'working funds' in lieu of supply, plus
 perhaps some contribution to tooling cost. I see this as a
 relatively small contribution to assure I have a workable/reliable
 option when I need it. With the Aussie dollar favorable at the
 moment to the U.S. dollar the time couldn't be better. All I need
 is some account details etc. and I can help get this thing started.
 I shall not be requiring this unit for sometime, so you may  keep
 it on hand for a reference on further improvements until I need it.
 If one was to commission such services it would cost loads, so I
 reckon It's  a bargain.

 "gearbox chatter" Paul, a lot of talk, but everyone is learning from
 this talk, it's great. keep it coming. Though it does help to keep up
 on the latest postings before commenting. Once again check-out EPI
 they have a good section on harmonics. and look at RWS PSRU
 development, They have done a lot of work for us in that area.

  BTW Dave, "go hard mate" give 'em some!!!!

 Graeme Riley


I am presently collecting materials for the prototype flex plate damper. I
just picked up the 4130 .090" plate material, and the 1/2x1" rectangle at ac
spruce. Today I will pick up a new 6 pinion planet and sun gear. Next week
the forward ring gear with hub, and the forward drum arrive, after which I
will cut the drum down so it can be mounted on the output plate, and begin
to tool the steel.

My interest in seeing how the present reduction unit is assembled is so I
can better understand how to build the tube shaft unit. Only the sun gear
input shaft has no definite source part.

A new aluminum housing prototype should'nt be too difficult. I don't know if
it is possible, could we have this part forged after we decide on a final
design? It appears Argyle Ind. can provide the pipe to get started.

Out of the images attached here of possible reduction units designs, the one
marked 'output-shaft7' is my favorite. It appears you have a 3.5"x6" long
tube in mind, with 1" wide needle roller bearings. I don't have the ring
gear yet, so I can't really tell quite what you have in mind with the
placement of the radial needle roller bearings on each side of the planet
assm. On the prop end, it appears you have 6 5/8 or 3/4 bar sections welded
on to the increased diameter. One of the drawings shows the use of longer
planet gear shafts to hold the prop shaft onto the planet cage.

Once you decide on some of the important dimensions, I can go down to the
bearing shop, and pick something up.

Ed Carver