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WG4005456211
FAW
| Attribute | Description |
|---|---|
| Part Number | WG4005456211 |
| Alternative Names | Auto Slack Adjuster, Automatic Brake Adjuster, Self-Adjusting Brake Arm |
| Function | Automatically maintains optimal brake clearance during operation |
| Position | Mounted on S-cam shafts at front/rear axle brake chambers |
| Application Type | Air Brake Systems – Heavy-Duty Trucks, Dumpers, Tractors |
| Design Standard | Complies with QC/T 943-2013 and GB 12676 |
| Housing Material | Ductile Cast Iron or Forged Steel (high impact resistance) |
| Internal Mechanism | Alloy steel worm gear + one-way clutch (heat-treated) |
| Lubrication System | Equipped with grease nipple (Zerk fitting) for maintenance |
| Sealing | Rubber dust boot protects internal components from contamination |
| Parameter | Specification |
|---|---|
| Spline Size | 1.5 inch – 10 tooth / 28 tooth (verify per axle model) |
| Center Distance (Arm Length) | 145 mm or 165 mm (critical for torque transfer) |
| Adjustment Range | Up to 35 mm (automatically adjusts over brake pad life) |
| Activation Threshold | Automatically engages after ~0.5–1.0 mm wear per cycle |
| Operating Pressure | Compatible with standard air brake systems (up to 10 bar / 145 psi) |
| Temperature Range | -40°C to +90°C |
| Weight (Approx.) | 2.1 kg – 2.6 kg |
| Certification | Meets QC/T 943-2013 Automotive Brake Adjuster Technical Requirements |