Description
Overview:
This genuine Makita Armature Assembly (110 V) is the rotating core of the motor for selected Makita angle grinders, including GA5021 and GA5010. Built with high-grade copper windings and stacked steel laminations, it delivers efficient power transfer and stable performance under load. The assembly restores smooth, reliable operation when the original armature is worn, shorted, or heat-damaged. As OEM No. 518663-3, it is engineered for a precise fit within the motor housing and to work correctly with the existing brushes and field coil. Designed for 110 V site tools common in the UK, it supports safe use on construction sites via step-down transformers. A durable, factory-balanced rotor helps minimise vibration and maintain speed, keeping your grinder productive on tough grinding and cutting tasks.
Key Features:
- Genuine Makita part for assured compatibility and performance (OEM No. 518663-3)
- 110 V specification for UK site use with step-down transformers
- Precision-wound copper coils and balanced rotor for smooth running and reduced vibration
- Robust commutator segments to support consistent power delivery and brush life
- Direct-fit replacement matching original dimensions for straightforward installation
- Helps recover torque and speed under load after armature failure
- Built to withstand heavy-duty grinding and cutting in trade environments
- Supports long-term reliability when paired with good brushes and a sound field coil
Typical Applications:
Ideal for restoring power and reliability to 110 V Makita angle grinders used in construction, metal fabrication, and maintenance. Suitable for tasks such as cutting steel sections, grinding welds, preparing surfaces, and working on masonry or concrete with the correct discs. Helps reduce downtime when motors show symptoms like loss of power, overheating, or excessive sparking at the brushes.
Also known as:
Grinder armature, armature rotor, motor rotor, rotor assembly, commutator rotor, replacement rotor, motor core for angle grinder. These terms refer to the same rotating electrical component that works with the field coil and brushes to drive the grinder spindle.
Fits Models:
GA5010, GA5020, GA5021
Alternate Part Numbers:
518663 3, 5186633
Product Specifications
| L&S Part No. | 518663-3 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Makita |
| OEM No. | 518663-3 |
| Unit of Sale | 1 |
| Applications | GA5010, GA5020, GA5021 |
| Machine Type | Angle Grinder |
| Fits Brands | Makita |
| Fits Models | GA5021 |
