Hi Jarrett,

 I am not doing this because I think this is a good way
 to make a twin pusher. As my old late friend Vance RIP
 used to say I am doing it because it is an interesting project.
 In the mean times I am waiting for slide throttle parts.

 The problem with spiral bevel gear sets is the separating forces
 between the gears. This amounts to a point load of about
 a thousand pounds at 200 foot pounds input. The traditional
 way of handling this is use big heavy bearings and a heavy
 thick wall spool. I am thinking of using a large diameter, thin
 section bearing to take the thrust load and a fabricated sheet metal
 spool. The 3.5 inch carbon fiber prop shaft will be bonded
 directly to the ID of the spool.

 Consider the red device a rock solid buttress.
 What does an FEA look like in the spool.
 Material is 4130.

 Thanks

 Paul Lamar

Sorry Paul, just to clarify.. you want a 1000# linear force on
the rim of the grey part as well as a 200ft/lb torque load at the same point?
Any kind of finite geometry that I can use to put the load into [a hole or ...?]

I'll get the model in and ready for some loads :)

Jarrett

I don't need the torque load now. I am looking at some thin section
bearings and I want to get an idea how the stress will look
in the stationary ball race just behind the gear. I suspect the torque
load is inconsequential by comparison. The thin section bearing goes between
the grey part and the red part.

Paul