pic: Banebot P60 Failure

[thefro526]

Originally Posted by Lowfategg

Another thing to look out for is the roll pins that hold the outer ring gear to the front plate. The wall on the roll pin holes bend and lets the flats on the ring gear slip which ends up rounding the whole front of the gear. I can see it already happening to this gearbox.

Install a torque limiting sprocket to take care of some of that shock load at ends of travel if your using chain.

The 4 roll pins have already stripped out of the front bearing mount, but I believe that we may be able to press new roll pins in - I'm not sure yet.

Our mechanism is designed so that the gearboxes themselves should never "see" more than 15-20ft-lbs of torque. The majority of the damage done to these gearboxes was done when I was testing an arm fix and went from full speed up to full speed down, something that the operator does not do in competition.