Hi Doug,

I am anticipating a problem feeding 40-50 HP into the front
e-shaft through a multi V belt system.
Depending on the size of the smaller pulley there will be a
significant side load due to belt tension on the e-shaft. There
are two manifestation of this. Bending loads in the e-shaft and side
loads on the front main bearing. This can be mitigated some what by
mounting the alternator on the opposite side of the engine.
The ultimate solution would be an auxiliary bearing and shaft inside of the
new e-shaft pulley with a flex coupling to the existing e-shaft alternator
and water pump pulley.

For more info see http://www.rotaryeng.net/beltpsr4.gif

Paul Lamar ...No rotor no motor.

Paul

Yea for initial testing I'll whip up something to capture the load.

For the final design I might bring the power in the other end as I
originally planned. The semi-automatic,flat RX-4 bell housing I have has a
nice side slot and a large 1" id bearing mounted in the center.

Doug in Japan


Sounds like a good plan to deal with it.

Paul Lamar ...No rotor no motor.

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