Description
Overview:
This Armature 110v is the genuine Makita replacement rotor for HR4001C and HR4011C rotary hammers. Built with high‐grade copper windings, a laminated steel core and a precision-machined commutator, it restores smooth power delivery and reliable hammer action in 110 V tools. As the rotating heart of the electric motor, the armature works with the field coil and brushes to drive drilling and chiselling performance under load. Supplied to OEM specification under part number 513631-1, it offers the correct geometry, balance and electrical characteristics for these models, helping to minimise vibration and heat build‐up. A genuine Makita part provides the fit, durability and service life expected on site, whether you are maintaining a single tool or a fleet of hammers.
Key Features:
- Genuine Makita part for assured compatibility and performance
- OEM No. 513631-1 for precise fit in 110 V HR4001C/HR4011C models
- Durable copper windings and laminated steel core for long service life
- Precision-balanced rotor helps reduce vibration and wear on bearings
- Quality commutator for consistent contact with brushes and smooth running
- Heat- and abrasion-resistant insulation to handle heavy-duty use
- Restores lost power and efficiency caused by a worn or shorted armature
- Direct replacement design for straightforward fitting by competent users
- Supports reliable drilling and chiselling in concrete and masonry
- Suitable for professional, hire, and DIY maintenance of 110 V site tools
Typical Applications:
Used to replace a damaged or burned-out rotor in Makita 110 V rotary hammers, restoring torque, speed stability and hammer impact. Ideal for tools used on construction sites, renovations, anchor setting, channel chasing, and general demolition in concrete, block and brick where continuous duty and dependable output are required.
Also known as:
Rotor, motor rotor, electric motor armature, hammer drill rotor, rotary hammer rotor, commutator rotor, motor core assembly.
Fits Models:
HR4001C, HR4011C
Alternate Part Numbers:
5136311
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