Description
Overview:
This genuine Makita armature assembly (110V) is the rotating core of the motor found in compact Makita angle grinders such as the 9553NB and 9554NB. Built with copper windings on a laminated steel core, a precision-machined commutator, and an integral cooling fan, it restores smooth, efficient motor performance when the original armature is worn or damaged. Designed specifically for 110V tools used on UK site transformers, it supports reliable torque delivery, consistent speed, and reduced sparking under load. The assembly is engineered for a direct fit in the correct models, helping to minimise downtime and keep your grinder cutting, grinding, and deburring cleanly. As a genuine Makita part, it matches the original specification and is the proper replacement for part number 515616-3.
Key Features:
- Genuine Makita OEM part for assured fit and performance on specified models
- 110V-specific winding for use with UK site power supplies (not suitable for 240V variants)
- Copper windings and laminated steel core for durability and heat management
- Precision-balanced rotor and commutator for smooth running and reduced vibration
- Integral cooling fan to aid airflow through the motor housing
- Direct replacement for Makita part number 515616-3 to simplify identification
- Helps restore power, reduce arcing, and improve start-up and load performance
- Compatible with Makita 9553NB, 9554NB, and 9555NB compact angle grinders
- Straightforward installation with standard workshop tools when following manufacturer guidance
- Supports longer tool life when paired with good brushes and a clean motor housing
Typical Applications:
Replacement for a worn or burnt armature in compact Makita angle grinders used for metal cutting, surface grinding, rust removal, masonry dressing, and site maintenance. Common in fabrication shops, construction sites, tool hire fleets, and DIY workshops to restore reliable motor function and consistent grinder performance.
Also known as:
Grinder armature, motor rotor, rotor assembly, commutator rotor, replacement armature for Makita compact angle grinders.
Fits Models:
9553NB, 9554NB, 9555NB
Alternate Part Numbers:
515616 3, 5156163
