[BJC]

We use .09 for our gearbox sideplates. It works fine without extra material. We also make the holes .003-.005 smaller so the bearing fits tightly which prevents slop in the gears.

Our 2012 collector had bearings in .063 sheet which supported bevel gears. There were no problems with the bearings all year. Just make sure the bearing flange is flush with the metal - it's not like its going to rip out or anything. I wouldn't suggest going this thin for a gearbox though.

Regards, Bryan