I was hoping to harness the knowledge of the group here to see if an idea I am looking at is feasible.
i am looking at redesigning my stub axles on my Royale to accept CVs on the outer axle (inner joint is already a CV). Here is a little background:
make: Royale RP16 FF
upright material: magnesium
inside bearing: 6208 (80x40x18)
outside bearing: 6208 (80x40x18)
bearing spacer: 35mm
my plan is to use Porsche 911 (SWB version) stub axle (30mm dia) with a machined adapter to accept the same 6208 (80x40x18) inside bearing and a machined/splined wheel hub/flange that would fit a 6010 (80x50x16) outside bearing. Changing the outside bearing will allow me to increase the splined section wall thickness and make the flange stronger. This setup will be similar to the Zink design but with larger diameter bearings and the wheel flange pressed into the bore of the bearing instead of pressed against it.
my question is will this new bearing in the outside location be strong enough for a vintage FF loads? I do know this bearing has lower load ratings (about 10% static and 30% dynamic), but I believe the original bearings were oversized to begin with and treaded tires have a lot of sidewall deflection.
how do these bearing sizes compare with newer axle designs? Nearly all modern axles use cartridge double row angular contact bearings so maybe a direct comparison isn’t practical.
Hope someone has some experience with this and can offer some guidance.
thanks