Description
Carbon (graphite) brushes 5x8x20 mm (5*8-L20) for Raketa 400W vacuum cleaner electric motor
A set of carbon brushes sized 5x8x20 mm (length 20 mm) is designed for the repair and maintenance of commutator electric motors in Soviet household vacuum cleaners with a power of 400 W (primarily the "Raketa" series). Graphite brushes provide essential electrical contact with the armature commutator, are wear-resistant, and prevent excessive sparking during motor operation.
Key benefits and features:
- Optimal material density: Made of high-quality electro-carbon composition, which ensures durability and minimal wear on the commutator's copper segments.
- Precise geometric dimensions: The 5x8 mm cross-section guarantees free movement of the brush in the brush holder without jamming or play.
- Restoring motor life: Replacing worn brushes eliminates heavy sparking, the characteristic burnt smell, and restores the electric motor's original 400 W power.
Compatibility and scope of application:
The brushes are designed for Soviet and post-Soviet vacuum cleaners with commutator motors of the AER, UER types and their modifications:
- Raketa vacuum cleaners: Raketa (400W), Raketa-7, Raketa-12, Raketa-9, Raketa-7M (with a similar type of brush holder).
- Other Soviet vacuum cleaners: Chaika, Vikhr, Buran, Ural, Sputnik, Auera, and other 300ā400 W household vacuum cleaner models using 5x8 mm graphite contacts.
- Other power tools: Suitable for repairing low-power electric motors, sewing machines, and grinding machines with corresponding brush slot sizes (5x8 mm).
Technical specifications:
| Parameter | Value / Characteristic |
|---|---|
| Part type | Graphite brushes (electro-carbon) |
| Thickness (a) | 5 mm |
| Width (b) | 8 mm |
| Length (L) | 20 mm |
| Motor purpose | 400 W vacuum cleaner electric motors (220V) |
Package contents:
- Carbon brushes 5x8x20 mm ā 2 pcs. (set for one motor).
Master's advice: Before installing new brushes, be sure to clean the armature commutator of carbon dust and carbon deposits with fine sandpaper (grit 0), and check the smooth movement of the brushes in the brass guides. After replacement, let the motor run for 5ā10 minutes at idle to seat the contacts.
