Quote:
Originally Posted by Monochron
As for the side bearing block, I was going to use it to hold the bearings for the gearbox shaft. I was kind of assuming that you had something similar in your model as you aren't using the VersaBlock at the gearbox.
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I use a flanged hex bearing pressed directly into the frame opposite the gearbox. Really this is bad practice. You shouldn't have more than two bearings on a shaft, and I have three (two in the gearbox and one in the robot chassis). I get away with it because two of the three bearings are hex bearings and they have a pretty sloppy fit with the hex shaft.
If you're going to do the same thing with round shaft, make sure you spin the output shaft by hand or wrench once you have the gearbox mounted to the chassis. If the torque required to spin the wheel is inconsistent or excessive, the bearings are probably over-constraining the shaft. This will kill your efficiency and lead to fatigue problems later if left uncorrected.