Some transmission help please.....

[Salik Syed]

Hi everyone....
i have some serious questions as i get into actually building a two speed tranny (contemplating building that is/ ordering parts)
anyways here the set up:
FP motor w/ a 20 th pinion goes to a 64 th gear
the Chiphuah motor links directly to the 64 th gear...
now this should couple the motors for 4050 RPM right? but how about the motor curves and what not will they match for the most part?

second major question :
this tranny will have some major loads on it....
the 40 AMP RPM is about 2000+ (the shifting stage comes after the first stage( which is 4050 RPM) then the shifter reduces either 2:1 or 3:1.... )
will some of the nicer BRONZE bearings hold up to thise load.... (i'm talking about the 841 type not 660) . then after this we'll put a chain reduction of 4:1 to 6" wheels....
will it work? will i burn bearings / create a heater....