Armature Worn Shaft1. Production methodCut the motor shaft's Wonr part with a bite for accuracy. Thi method minimizes the Pithc / pressure angle / Lead hich results in minimizing the vibration and noise of the motor. 2. Production listAmature worm shaft for power window* Armature worm shaft for wiper* Armature worm shaft for sun-roof* Other worm shaft precision processed goods. 3. Other parts-Standard type DC Motor