stator only has some track of cleating machine in outer diameter and there isn't any skewed angle or key, On the other hand, the rotor has two straight keyway and small notch with the skewed angle in slots, but I don't know rotor laminate had rotation or turn over before punching for orientated...
in this type of motor, there is a skewed angle during stack and small notch move irregular in the corner of keyways, Could this be due to the rotation of the sheets or turn over the sheets during stack?
and Is it necessary to have a rotating or turn over the plates in the rotor stack?
Please consider the attached photos, I hope the enclosed picture help to clarification about the notch in the rotor laminations.in addition, this notch moves and changes position along the stack in key ways.
what is a cause of small notch in rotor laminations keyway?
and why it does rotate and move along the rotor stack length?
Does it mean that laminations must be rotated and turnover along with the rotor stack?
