Description
Overview:
This Armature Assembly 110 V (part no. 510123-1) is a genuine Makita OEM motor component for selected Makita angle grinders, including GA7020S and GA9020. It forms the rotating core of the motor and is built with durable copper windings on a laminated steel core with a precision-ground steel shaft and commutator. Fitting a fresh armature restores smooth power delivery, reduces sparking, and helps maintain the tool's designed speed and torque. Made for 110 V site-rated tools, it is suitable for UK construction sites using step-down transformers, as well as workshops running 110 V equipment. A direct-fit replacement, it supports reliable day-to-day use for tradespeople and DIY users who need consistent performance from their Makita grinders.
Key Features:
- Genuine Makita OEM part for assured fit and performance (510123-1)
- Designed for 110 V AC grinders; do not use in 240 V machines
- Copper windings and laminated core for efficient, reliable operation
- Direct replacement for worn or burnt armatures to restore tool power
- Pre-assembled rotor/commutator for straightforward installation
- Built for long service life under regular site and workshop use
- Helps reduce excessive sparking and overheating associated with failed armatures
- Compatible with the specified Makita models for hassle-free maintenance
Typical Applications:
Used to replace damaged or failed armatures in 110 V Makita angle grinders working on construction sites, fabrication shops, and maintenance facilities. Suitable where grinders are used for cutting, grinding, and surface preparation on metals, masonry, and concrete, helping the tool run smoothly and reliably after repair.
Also known as:
Armature, motor armature, rotor, rotor assembly, commutator rotor, electric motor rotor, grinder motor core, motor rotor for angle grinder.
Fits Models:
GA7020, GA7020S, GA9020, GA9020S
Alternate Part Numbers:
5101231
