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Chassis Parts Rubber Support Rubber Bearing Az9725520278 Rubber Seat for Sinotruck HOWO Shacman FAW Dongfeng

The AZ9725520278 Rubber Mount Assembly is a high-performance vibration-damping component designed for use in the chassis, engine, cab, or suspension systems of commercial vehicles. This rubber mount serves as a critical interface between metal structures—absorbing shocks, reducing noise, and isolating vibrations caused by road conditions, engine operation, or driveline dynamics.

Engineered to meet original equipment (OE) specifications, this part is widely used across Sinotruk HOWO, MAN-based heavy-duty trucks, and other Chinese-European joint-venture commercial vehicle platforms. The AZ9725520278 mount combines durable steel reinforcement with high-elasticity rubber compound to deliver long-term reliability under continuous load, extreme temperatures, and harsh operating environments.
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  • AZ9725520278

  • Shacman Sinotruk HOWO Dongfeng FAW

Attribute Specification
Part Number AZ9725520278
Product Name Rubber Mount Assembly / Vibration Isolator
Function Shock absorption, vibration damping, noise reduction, structural isolation
Application Location Engine Mounting, Gearbox Support, Cab Suspension, Frame Bracket Interface
Vehicle Type Heavy-Duty Trucks, Tractors, Construction Vehicles, Long-Haul Freight Carriers
Core Material – Rubber Natural Rubber (NR) + Styrene-Butadiene Rubber (SBR), high resilience
Hardness (Shore A) 65° ± 5°
Reinforcement Core Internal steel insert (zinc-coated or galvanized)
Mounting Type Bolt-through center bore (male stud or female sleeve style depending on variant)
Installation Method Bolted between two components using washers and nuts
Load Direction Vertical compression and shear loads
Working Environment Resistant to oil mist, moisture, dust, and moderate UV exposure
OEM Compatibility Designed for Sinotruk HOWO, MAN TG series derivatives
Standards Compliance GB/T 14961, ISO 4661, QC/T 630 (Rubber Automotive Mounts)
橡胶座-4


橡胶座-1


Parameter Specification
Outer Diameter (OD) Approx. 80 mm – 90 mm
Inner Bore / Stud Size M16 threaded stud or Φ17 mm smooth bore (common variants)
Overall Height 40 mm – 50 mm
Steel Insert Dimensions Inner thread: M16×1.5; Flange diameter: ~70 mm
Static Load Capacity 8,000 N – 15,000 N (depending on application)
Dynamic Load Rating Up to 5,000 N cyclic
Compression Deflection 3–6 mm at rated load
Spring Rate (Approx.) 200–350 N/mm
Operating Temperature Range -40°C to +90°C (-40°F to +194°F)
Oil & Fluid Resistance Good resistance to engine oil mist and brake fluid (short exposure)
Fatigue Life ≥ 2 million cycles (per GB/T 14961 test standard)
Weight (Each) ~0.8 kg – 1.2 kg
Color Black rubber with metallic sheen (steel core visible at ends)


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