[Madison]

Originally Posted by Fearthewookie

Hi Madison,

Im not sure I understand, which specific groove on the output shaft? Why does this worry you?

Thanks

I'm speaking of the innermost of the two retaining ring grooves turned into the output shaft. Folks will often put two retaining rings onto a shaft if they're training to constrain something axially, which appears to be what you're doing here.

The retaining ring groove, though, is a point of stress concentration in the shaft. You're presumably transmitting torque through the groove -- perhaps to a wheel or set of power transmission components -- and doing so can lead to a failure of the shaft at the groove.