SINOTRUK HOWO Rubber Bearing AZ9725520278 – Heavy Duty Truck Suspension Leaf Spring Bushing
Sinotruk HOWO rubber bearing pads/sleeves (AZ9725520278) significantly improve the chassis shock absorption performance of your truck fleet and extend the life of the suspension system.
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Product Details
SINOTRUK HOWO Rubber Bearing Assembly (AZ9725520278)
🔩 Heavy-Duty Suspension Leaf Spring Rubber Bushing for High-Tonnage Axle Stabilization
Product Overview
In high-load logistics corridors, aggregate mining operations, and rough construction environments, a heavy-duty truck’s suspension system must endure constant torsional stress and severe road impacts. A worn or cracked rear suspension rubber bearing directly compromises axle alignment, accelerates leaf spring failure, and causes dangerous vehicle instability under heavy loads. At ARCHER, we distribute premium factory-direct SINOTRUK HOWO Rubber Bearings (Part Number: AZ9725520278). Engineered by co-vulcanizing premium elastomeric rubber compounds to a heavy-walled steel core sleeve, this genuine suspension bushing provides excellent shock absorption, resists structural tearing, and maintains absolute frame geometry under extreme fleet overloads.
Technical Specifications Table
| Technical Parameter / Attribute | Engineering Specification Details |
|---|---|
| OEM Factory Part Number | AZ9725520278 / AZ 9725520278 |
| Component Category | Rear Suspension Leaf Spring Rubber Bearing / Equalizer Bushing Block |
| Material Configuration | High-Density Anti-Aging Natural Rubber (NR Formulation) & Seamless Steel Sleeve |
| Chassis Installation Site | Rear Balance Shaft Bracket / Dual-Axle Leaf Spring Seat Pivot Assembly |
| Environmental Tolerance | High Resistance to Industrial Oils, Road Salt, Mud, Ozone, and Thermal Cycling |
| Manufacturing Benchmark | Strict OEM Specification and Shore A Hardness Calibration Passed |
Comprehensive Fleet Applications & Model Coverage
The AZ9725520278 suspension cushioning core serves as a critical load-bearing pivot point across many generations of SINOTRUK heavy truck frames. ARCHER ensures direct factory placement and secure container supply for the following equipment families:
🌟 HOWO 7 Heavy Duty Dump & Tipper Series
Handles massive vertical load shifts and severe axle twisting inside off-road mines and construction yards:
• SINOTRUK HOWO 7 6×4 Heavy Tippers
• SINOTRUK HOWO 7 8×4 Infrastructure Dump Trucks
• HOWO Concrete Mixers and Heavy Concrete Pump Trucks
🌟 Commercial Logistics Tractors & Freight Carriers
Ensures stable highway tracking and prevents hazardous trailer sway during long-haul interstate logistics operations:
• SINOTRUK HOWO 6×4 Prime Movers & Tractor Units
• SINOTRUK HOWO T7H / TX Heavy Cargo Carriers
• Rigid Multi-Axle Intercity Freight Trailers
Core Performance Advantages
🛡️ Premium High-Elastic Natural Rubber
Formulated using high-grade, premium natural rubber compounds that balance ideal flexibility with high compression resistance, delivering long-lasting damping properties.
🛡️ Reinforced Seamless Steel Core
The interior inner core features thick, seamless structural steel tube piping, preventing pin deformation and making it easy to press-fit into the balance shaft seat.
🛡️ High Torsional Tear Resistance
Our advanced heat-vulcanization bonding process ensures the rubber holds securely to the inner metal core, preventing delamination and tearing under intense axle twist.
Technical FAQ
1. What are the operational consequences of delaying the replacement of a worn AZ9725520278 rubber bearing?
Driving on a degraded or crushed rubber bearing transfers raw road shocks straight into the metal balance shaft brackets and leaf spring assemblies. This severe metal-on-metal friction quickly causes shifting alignment issues, accelerates abnormal tire wear, and can crack your main leaf springs.
2. Does workshop installation require special heavy machinery tooling for press-fitting this bushing?
Yes. Due to the high-density interference-fit engineering specifications of the AZ9725520278 bushing assembly, technicians must use a hydraulic shop press machine for proper installation. Avoid hitting the outer face directly with a sledgehammer, as this can bruise the rubber compound and distort the steel inner sleeve.
3. How can I ensure I am purchasing the correct rubber bushing for my specific HOWO suspension model?
SINOTRUK utilizes several distinct sizes of rubber bearings depending on the load capacity of the chassis (e.g., 12-ton, 16-ton, or heavy mining axles). Please provide your vehicle’s VIN or measure the outer diameter, inner core pin path, and overall length so our technical sales staff can verify a perfect engineering match before loading your shipping containers.
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Your Trusted Global Supplier for Genuine Heavy Machinery Spare Parts and Toughened Suspension Componentry.
Official Web: www.archerparts.com | www.archermach.com
