with a belt drive you can replace the motor if it wears out or the fan bearings if they wear out. with direct drive the motor bearings bear all the weight and stress. the belt seems like the way to go to me.

it will require a belt from time to time though.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.