Paul and George

 There is a part design of shaft with detachable flange who can be built with
 splines with the shaft and threaded nut to secure the flange and the bearing
 the nut can be lock with flat head screw true the flange or outher ring with
 splines

 Jean Prudhomme

 Send me a sketch, dwg or jpg.

 Paul Lamar @ Aero

 DWG jpg

 Jean

 How does the 3.5 inch dia. carbon fiber prop shaft connect to
 this part?

 Paul Lamar


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              Paul

There is the way of the propshaft will attache to the 3.500"ID X .180" wall thichness,i found a double side trust sealed ball bearing and Mark Williams have a 45mm deepgrooved double ball bearing but i can use their number to find the 50mmx90mmx32.1mm.

To use the carbon tubing i have to go with the 5"od x.250 wall alum tubing reinforced with 1/4" gusset.

On the flange attachement on back of the bearing housing have to be beeffy up more then 1/2" thichness
I will redesign in 3D after i finish to figure it out all dimensions.

I still in contact with Mark Veldhuis of PST inc.

Jean Prudhomme

That looks pretty good. Look into helicopter or thin section
bearings.

Paul Lamar @ Aero