Ha.. ya.. they'll make up some knew rule about heli's not being able to race..
or VTOL's.. or maybe.. they'll just say that a Rotary is really a turbine engine
and airframes w/ Rotarys can't race..

anyway here ya go.. Made it all outta 1020. I had to remodel it so it's all one pc
and had a contact area of 0.001" [it' was connected by 0.001" so it's all one pc]
anyway two shot's I sectioned the ball in half [w/ the block] and loaded it to
10,000lb's shear and here's the stress, both from the front and back.

hope that's what you wanted.. [and my description makes sense]

Jarrett

Which way were the shear loads applied? I would think one race would bend up
and the other down.
-- 
Paul Lamar ...No rotor no motor.

Thats exactly how I'd set it up. What happened was the model
twisted because it's a free body. The ball in the middle became
the fulcrum and the race segments tipped inwards.
I'll see if I have time later and I'll model a complete ring and
do it w/ the full loading.

Can you tell me how many balls and the "pitch dia" they are
placed at?? The full load would be 10000 x # of balls?

Jarrett

22 balls. Pitch diameter 3.8 inches.

Full load would be 50,000 pounds.

The problem with that is the load is not symmetrical as there is
bending applied to the bearing. Perhaps a full inner and outer race  and two ball 180
degrees apart is the way to go. In that case go back to 10,000 pounds shear or 40,000 inch
pounds bending across the bearing. This is due to the thrust moment on the blade not
completely balanced by the centripetal moment.

Paul Lamar ...No rotor no motor.

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