Product Description: 2079711 Screed Vibration Eccentric Bearing Housing

Core Function & Working Principle

• Vibration Transmission Hub: It securely houses eccentric bearings, converting the rotational force of the paver’s drive system into stable, high-frequency vibration energy. This energy is evenly transferred to the screed plate, ensuring asphalt mixtures are fully compacted and air bubbles are eliminated.
• Load-Bearing & Protection: The housing bears both the radial and axial loads generated during high-speed vibration, while isolating the bearing from external contaminants such as asphalt, dust, and construction debris—effectively extending the bearing’s service life and reducing maintenance frequency.

High-Quality Material & Manufacturing Standards

• Premium Material Selection: Crafted from high-strength alloy steel (e.g., 42CrMo) or ductile iron with excellent wear resistance and impact toughness. The material undergoes strict heat treatment (quenching and tempering) to achieve a hardness of HRC 28-32, ensuring resistance to deformation under long-term high-load vibration.
• Precision Machining: Adopts CNC turning, milling, and grinding processes. Key mating surfaces (e.g., bearing installation bore, housing mounting face) feature a surface roughness of Ra ≤ 1.6 μm and dimensional tolerance up to IT7 grade, guaranteeing seamless fit with eccentric bearings and screed assemblies—avoiding vibration leakage or abnormal noise.

Performance Advantages for Road Construction

• Enhanced Vibration Stability: The optimized structural design minimizes vibration attenuation, ensuring the screed maintains consistent amplitude (typically 0.3-0.8 mm) across the entire working width. This directly improves the flatness of the paved road, meeting highway-level construction standards (e.g., IRI ≤ 2.0 m/km).
• Durability in Harsh Environments: The housing’s exterior is coated with a corrosion-resistant, high-temperature-resistant finish (e.g., epoxy powder coating) to withstand extreme conditions such as high asphalt temperatures (150-180°C), rain, and dust—ensuring reliable operation for over 5,000 hours of continuous construction.
• Easy Maintenance & Replacement: Standardized mounting holes and positioning pins align with original equipment (OE) specifications, enabling quick disassembly and installation without modifying the paver’s screed structure. This reduces machine downtime during on-site maintenance.

Application Scope & Compatibility

• Primary Application: Ideal for large-scale road construction projects, including highway construction, urban road renewal, airport runways, and parking lot paving. It is compatible with mainstream paver models (e.g., BOMAG, Vögele, Dynapac) that require the 2079711 part number.
• OE-Grade Replacement: Manufactured in strict compliance with original equipment technical standards, it can directly replace worn or damaged original bearing housings—ensuring consistent performance with the paver’s original screed system.
• Quality Assurance & After-Sales

• Each 2079711 bearing housing undergoes 100% quality inspection before delivery, including dimensional accuracy testing (via coordinate measuring machines), hardness testing, and dynamic balance testing (to ensure vibration amplitude deviation ≤ 0.05 mm).
• Backed by a 12-month warranty (or 2,000 working hours) under normal construction conditions. Technical support is provided for installation guidance and troubleshooting to ensure customer satisfaction.