Description
Overview:
The 7 Teeth Armature Assembly (MPN 619290-0) is a genuine Makita motor rotor for BCS550 and DCS550-series cordless circular saws. Built around a hardened steel shaft with copper windings and a precision-machined commutator, it restores smooth, efficient drive to the saw. The 7-tooth pinion is matched to the saw's gearbox for correct meshing and dependable torque transfer. Manufactured to Makita tolerances, this assembly is a direct replacement for worn or damaged armatures that can cause power loss, excessive sparking, or overheating. It is suitable for routine maintenance in trade and DIY use, helping to extend tool life while maintaining cut accuracy and battery runtime. Supplied as a complete armature assembly ready to install into the motor housing. Genuine Part.
Key Features:
- Genuine Makita part (MPN 619290-0) for assured compatibility and quality
- 7-tooth pinion for correct gear mesh and reliable drive
- Copper windings and durable commutator for long service life
- Precision-balanced rotor to reduce vibration and wear
- Direct-fit replacement; no modifications to the tool required
- Restores cutting power, speed stability, and braking consistency
- Helps reduce overheating and excessive sparking from a worn rotor
- Efficient design supports good cordless runtime
- Engineered to Makita standards for consistent performance
- Suitable for professional repairs and regular maintenance
Typical Applications:
Replacement armature for Makita cordless circular saws used on site work, carpentry, and DIY projects. Ideal when refurbishing tools that show symptoms such as loss of power, rough running, burning smells, or visible arcing. Supports reliable cutting of timber and sheet materials when fitted to compatible saws.
Also known as:
Motor armature, rotor, commutator armature, electric motor core, rotating assembly, pinion rotor, drive rotor, motor repair component for cordless circular saws.
Fits Models:
BCS550
DCS550RMJ
DCS550Z
Alternate Part Numbers:
6192900, 619290 0
Product Specifications
Reviews
Ask a Question (1)
Compatibility
Customers also bought
Related Products
-
![]()
Motor for Makita Btm50 Cordless Multi Tool - 629956-4£25.74 £21.45
