Original Makita 513443-2 — Armature (rotor) assembly for the 150 mm random-orbit sander (BO6050).
This is the genuine Makita armature assembly for 220–240 V machines: a precision-balanced rotor with integrated commutator and shaft designed to replace the rotating core of the motor and restore smooth running and low vibration.
Fits models in the BO6050 (listed for BO6050 / BO6050J 150 mm random-orbit sanders); it’s the direct replacement part called out in the Makita parts diagram and manual.
A straightforward swap into the motor housing when the existing rotor shows excessive wear or commutator damage — a good time to inspect the brushes and bearings while you have the unit open. This genuine replacement is listed among Makita parts for the BO6050 and supplied as the complete armature assembly.
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