As some may know I have a Seig Mini Mill. The X1L (long bed).
I don't particularly like this machine, but can't really afford anything else at the moment.
But it suffers from a lot of vibration. And I tracked it down to the motor pinion. It is hard to describe just how loose it is on the shaft.
So I decided to get another pinion gear, maybe two , and looked it up.
It's described as a 'sacrificial motor gear pinion' Or something very close to that.
I mean, 'sacrificial', how bad does a design have to be for the part to be describe like that ?