Gearbox Maximum Torque

[Kevin Sevcik]

Norm,

Two important questions that might help us determine failure mode:

1. What was the diameter of the spindle you were winding onto?
2. Did you support the opposite end of the shaft with a bearing block, or was this a 150 lb cantilevered load on your gearbox?

Second question is the more important, as 150 lbs of side load on one of these gear boxes is probably going to translate through the output bearings and put a heck of a load on the final planetary stage.

Also, if only you'd have mentioned this while you were at Lone Star. I'd have loved to take a look at the thing in person. If only to determine whether I should continue to assume these gearboxes are really a vast improvement over the '07 ones my team had welded back together at GLR.