RS775 Gearboxes

[Kevin Sevcik]

Originally Posted by JVN

Plus more likely to catch fire under stall load!
I'll stick to the 775's and their greater robustness...

Seconded! RS-550's and FP's fail spectacularly under heavy loads. For the uninitiated, these motors have nice little plastic impeller fans to blow air across the coils and cool them. But the more you load them, the slower they turn, the hotter they get... This continues for a short while till you melt the little plastic fan. At that point, the motor's toast because it'll never be able to adequately cool itself. And that's assuming it hasn't managed to catch fire or short itself out before the breaker trips.