Product Overview — Part 4812111046
The 4812111046 is a precision-manufactured Cab Mounts component. The 4812111046 cab isolation mount is engineered for large construction equipment where cab weight and dynamic loads exceed the capacity of standard-size cab mounts. The larger format rubber-to-metal bonded assembly provides increased load capacity while maintaining the vibration isolation performance needed for operator comfort regulations. Large equipment cab mounts (for machines over 40 tonnes) must handle cab static weights up to 1,000 kg combined with dynamic amplification factors during rough terrain travel. Part 4812111046 is rated for these demanding conditions while maintaining rubber stiffness characteristics within the isolation band. For BOMAG large compactor applications, our technical team can cross-reference this part against BOMAG BW 300 series specifications. See our BOMAG cab mount catalog and 3128259405 assembly for BW series cab mount solutions.
Technical Specifications
| Property | Value | Standard |
|---|---|---|
| Part Number | 4812111046 | OEM Specification |
| Hardness | 45–70 Shore A (application specific) | ISO 48-4 / ASTM D2240 |
| Tensile Strength | ≥ 16 MPa | ISO 37 / ASTM D412 |
| Elongation at Break | ≥ 300% | ISO 37 / ASTM D412 |
| Compression Set | ≤ 25% (22h/70°C) | ISO 815-1 / ASTM D395 |
| Temperature Range | −40°C to +90°C | Operational limits |
| Ozone Resistance | No cracking 168h | ISO 1431-1 |
| Fire Safety | EN 45545-2 HL2/HL3 available | EN 45545-2:2013 |
| Fatigue Life | > 1,000,000 cycles | Dynamic fatigue protocol |
Applications
Large construction equipment cab mounts (40+ tonne machines); heavy compactor cab isolation; large excavator and dozer cab mounting.
Our technical team can assess suitability for other equipment types. Contact us with the make, model, and serial number for a precise cross-reference confirmation.
Material & Quality Standards
- Base Polymer: Natural Rubber (NR) or NR/SBR blend — excellent resilience and fatigue resistance
- Reinforcing Fillers: High-structure carbon black for controlled stiffness and wear resistance
- Protection Additives: Anti-ozonant wax and chemical antioxidant for extended outdoor service life
- Bonding System: Chemically bonded rubber-to-metal interface exceeding bulk rubber strength
- EN 45545-2 Option: Halogen-free flame retardant meeting smoke toxicity requirements (on request)
Every batch produced under ISO 9001:2015 QMS with full material traceability. Certificate of Conformance and material test reports available upon request.
Installation Guidelines
- Inspect on arrival: Verify part number 4812111046. Check for transit damage — reject any non-conforming component.
- Clean mating surfaces: Remove all rust, old rubber fragments, grease, and paint before installation.
- Align correctly: Follow assembly drawing orientation. Incorrect orientation may cause premature failure.
- Torque fasteners: Use calibrated torque wrench and cross-pattern tightening sequence per OEM specification.
- Post-install check: Inspect for correct seating. Run equipment at low speed to verify no abnormal noise or vibration.