501 needs your help – P60k 256:1 Banebots Transmission

[Isaac501]

Originally Posted by fox46

Lets take some bets here- its the output shaft/stage rounding off or the ring gear torquing free?

I absolutely hate these things..... We are trying to re-engineer ours to keep them from failing. I don't understand the mentality of marketing and selling a gearbox that can't handle the power produced by the motor is it sold for.

First both of the output bearings failed; We had to re-work the output mount with new bearings. Then the shaft failed (rounding out) and then the new shaft we machined failed (rounding out).

The gearbox can handle the power and torque the motor puts out.

I get the sneaking feeling we've exceeded the 35ft-lb rating by .. quite a bit on backdrive.

Then again, I don't know.. I'm a semiconductor engineer. What's this torque stuff?

We have the facilities to harden the steel.. I am wondering if it might be a good idea or if it will just put the point of failure further down the line.