You're right to say nobody has mentioned it here but that includes many folk who have performed the conversion and racked up many miles on their car after.SuperV8 wrote: ↑Tue Aug 03, 2021 11:11 am I can't see anyone mention that when adapting ICE gearboxes to Electric motors they incorporate a pilot/spigot bearing to support the gearbox input shaft?
ICE gearboxes have a much longer (unsupported) input shaft than electric motor transmissions.
I would suggest this pilot bearing (usually in the centre of the flywheel) is important - especially when using motors with greatly increased torque over the original designed ICE.
These splined couplers should really only be used to transfer torque between two concentric shafts.
Like many things there is the perfect way to do it and there is the way that works fine but is probably not optimal.