Description
Overview:
This genuine Armature 230-240 Volt is a direct replacement for Hikoki and Hitachi disc grinders, engineered to restore smooth, reliable motor performance in models such as G13SB3 and CM5SB. The assembly features copper windings on a laminated steel core with a precision-machined commutator, providing efficient energy transfer and stable speed under load. Built for UK mains voltage, it converts electrical power into rotational drive, forming the heart of the grinder's motor. The robust steel shaft and balanced rotor help minimise vibration and wear, supporting accurate grinding and cutting. Supplied as an OEM-equivalent unit (ref. 360734E), it is suitable for routine maintenance or repair where the original armature shows signs of overheating, commutator damage, or winding failure. Genuine Part for assured fit and compatibility.
Key Features:
- Genuine Hikoki/Hitachi part for correct fit, balance, and compatibility
- Rated for 230-240 V mains for consistent power delivery in the UK
- Direct replacement for OEM reference 360734E
- Copper windings and laminated steel core for efficiency and heat management
- Precision commutator for stable speed and smooth motor response
- Factory-balanced rotor to help reduce vibration and bearing wear
- Shaft geometry matches the original for straightforward refitting of gears and bearings
- Designed for demanding site and workshop use
- Suitable for both professional and DIY maintenance of compatible grinders
- Best practice to inspect brushes and bearings during installation for optimal results
Typical Applications:
Used to restore motor function in disc grinders for metal fabrication, surface preparation, rust and weld removal, and light masonry tasks. Ideal when addressing symptoms such as sparking, power loss, overheating, or a rough-running motor. Supports reliable daily operation on site or in the workshop by returning the tool to its intended power and balance.
Also known as:
Rotor assembly, motor rotor, armature rotor, electric rotor, grinder motor core, replacement rotor assembly, rotor for angle grinder, commutator rotor.
Fits Models:
CM5SB, G13SB3
Alternate Part Numbers:
HKK360734EHKK, 360734E
Product Specifications
| L&S Part No. | HKK360734E |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hikoki |
| OEM No. | 360734E |
| Unit of Sale | 1 |
| Machine Type | Angle Grinder |
| Fits Brands | Hikoki |
| Key Features | - Genuine Hikoki/Hitachi part ensures correct fit and compatibility - Rated for 230-240 V mains for UK power systems - Copper windings and laminated steel core enhance efficiency - Precision commutator maintains stable speed and motor response - Factory-balanced rotor reduces vibration and bearing wear |
| Fits Models | CM5SB | G13SB3 |

