My assumption was there would be an allen head screw on top to remove the bearing-but there isn't-sorry for the fuzzy picture.
Is this some bit of esoteria I didnt have on 1/4 spiral bits? That they dont allow for bearing changes or just my bad luck on this particular one?
There are actually 2 separate bearings on it.
Its made by Weeker - which I seem to only be able to find on Amazon and no company website ...sigh.