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


__
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

                    Paul

I am wondering if i should design with seal and wet oil lubrication system,On the differential i do have a small recirculating pump so i can run lines to the front part housing and i guess i should have a longuer bearing life,what do you think.

I did the other end shaft design and i will incorporate a thin trust bearing, i should forward to you this weekend.

I will forward to ACPT design for their recommendation regarding bounding the carbon shaft to the prop shaft.
Its good to hear from you no matter your are in a long trip.

Regards

Jean Prudhomme   


Tracy seems to be getting away with just a sealed bearing for the prop
shaft. No lubrication.

Paul Lamar In Frankfurt.