ZF G BRAKE BRAKE – Precision Stopping for Heavy-Duty Operations
Engineered specifically for ZF off-highway transmissions in the WG200 and ERGOPOWER series, the G BRAKE (SKU: G BRAKE) is a hydraulic multi-disc brake assembly designed to manage extreme torque loads in demanding construction environments. Unlike conventional service brakes, this unit integrates directly with the transmission output shaft to provide controlled deceleration and parking hold functions without taxing the primary driveline components.
Application & Compatibility
This brake is a direct-fit replacement for articulated dump trucks, wheel loaders (e.g., Liebherr L556, Volvo L120), and motor graders operating with ZF 4WG-200 or ERGOPOWER 6WG transmissions. It ensures reliable stopping power even under continuous heavy-load cycles, reducing wear on downstream axles.
Material & Durability
- Friction discs: Sintered bronze-on-steel for high heat dissipation and consistent friction coefficients up to 350°C.
- Housing: High-tensile nodular cast iron (EN-GJS-500-7) with corrosion-resistant coating.
- Seals: Viton® O-rings rated for mineral oil and extreme pressure additives.
Maintenance Schedule
Inspect brake disc thickness every 500 operating hours or after 3 months, whichever comes first. Replace the brake assembly when disc wear exceeds 1.5 mm from original spec. Hydraulic oil change intervals should align with transmission service (every 1,000 hours) to prevent contamination-induced drag.
| Parameter | Specification |
|---|---|
| Weight | 12.4 kg (27.3 lbs) |
| Max Torque Capacity | 4,200 Nm |
| Hydraulic Pressure Range | 18–28 bar |
| Disc Count | 6 friction / 5 steel |
| Operating Temperature | -20°C to +120°C |
