Description
Overview:
This genuine Makita Armature Assembly 240 V (part no. 515668-4) is the rotating core of the drill's electric motor, engineered to restore power and efficiency in Makita SDS-Plus hammer drills such as the HR2440 and HR2450. Built around a precision steel shaft with a laminated core and copper windings, it transfers electrical energy into rotational force for drilling and hammer drilling tasks. The commutator is designed for stable current transfer to the carbon brushes, supporting consistent torque under load. Optimised for 240 V UK mains supplies, it offers the correct electrical specification and mechanical fit for the specified models. This robust assembly helps maintain smooth operation, reliable starts, and sustained performance in demanding site and workshop conditions.
Key Features:
- Genuine Makita part for assured fit, performance, and longevity (515668-4)
- 240 V specification for UK mains-powered tools
- Precisely balanced rotor to help minimise vibration and wear
- Copper windings and laminated core for efficient power delivery and heat control
- Accurate shaft and commutator geometry for smooth running and steady speed
- Designed for heavy use in hammer drilling, maintaining torque under load
- Direct replacement for worn or burnt-out armatures on compatible models
- Helps restore drilling speed, impact efficiency, and reliability
- Compatible with OEM brush gear and housings on listed models
- Suitable for professional repairs using standard workshop tools
Typical Applications:
Used to replace a failed or worn armature in Makita SDS-Plus hammer drills used for drilling and light chiselling in concrete, masonry, brick, and metals. Ideal for construction, facilities maintenance, electrical and plumbing fixings, anchor installations, and general renovation tasks where dependable drilling performance is required.
Also known as:
Rotor, motor rotor, electric drill armature, SDS-Plus drill armature, replacement drill motor, 240 V rotor assembly, commutator rotor, hammer drill rotor.
Fits Models:
HR2440, HR2450, HR2450T
Alternate Part Numbers:
5156684
