1 years
China
1. Product Identification
Part Number: 10080108
Compatibility: Dedicated to Bosch GBH4DSC rotary hammer drills
Quality Grade: High-performance design for prolonged service life
2. Technical Specifications
Dimensions:
Thickness: 8mm × Width: 12mm × Length: 22mm
Material Composition:
Graphite-copper composite (25% copper content)
Ceramic wear-resistant additives (≤5%)
Electrical Parameters:
Resistance: 8×10⁻⁵Ω·m
Current rating: 12–15A
3. Compatibility Details
Applicable Models:
Bosch GBH4DSC (1100W, 26mm chuck)
Verified fit for serial numbers starting with "2607335XXX"
Functional Role:
Conducts current to rotor windings during impact drilling operations
Maintains contact with commutator under high-vibration conditions
4. Replacement Indicators
Residual brush length < 11mm (50% of original 22mm)
Excessive sparking (visible arcs >5mm) during operation
Reduced impact frequency or motor stalling
Commutator grooves deeper than 0.5mm
5. Installation Protocol
Disconnect power and remove the motor housing screws
Extract the old brush assembly (note spring orientation)
Clean commutator with isopropyl alcohol (99%)
Polish new brush arc with 400-grit sandpaper for commutator matching
Calibrate spring pressure to 2.0–2.3kg using a tension gauge
6. Performance Advantages
Wear Resistance: <0.12mm/100 hours (30% better than standard brushes)
Heat Dissipation: Operating temperature ≤120℃ under full load
Electrical Stability: Consistent conductivity at 1,800–2,800 RPM
7. Purchase & Warranty
Genuine/OEM Verification:
Look for Bosch logo and part number embossed on the brush body
Cross-reference with GBH4DSC service manual (page 18, part list)
Warranty Terms:
6-month guarantee against material defects
Not covered for wear due to improper maintenance
8. Maintenance Recommendations
Inspect every 40 hours of use (or 800 impact cycles)
Replace both brushes simultaneously to ensure balanced pressure
Store in humidity <60% to prevent graphite degradation