AZ2210030035 Countershaft Drive Gear for HOWO Truck
The HOWO truck series represents a pinnacle of heavy-duty transportation engineering, and its transmission system is at the core of this robust performance. Among the critical components in HOWO transmissions is the countershaft drive gear (OEM: AZ2210030035), a precision-engineered part designed to withstand the rigorous demands of commercial hauling. This vital transmission accessory ensures seamless power transfer between the engine and wheels, maintaining optimal torque delivery in various driving conditions. Unlike standard gears, the AZ2210030035 model undergoes specialized heat treatment to enhance surface durability while maintaining the flexibility needed to absorb vibration shocks during gear transitions. Manufactured to exacting tolerances, each unit features computer-designed helical teeth that reduce operational noise by 30% compared to straight-cut alternatives, creating a quieter cabin experience for drivers during long hauls.
Performance Advantages of AZ2210030035 Gear
Engineered specifically for heavy-duty applications, the AZ2210030035 countershaft drive gear significantly extends service intervals for HOWO transmission systems. When replacing worn components, technicians will immediately notice the precision fit of this genuine part – no secondary machining or adjustments required during installation. The gear’s micro-polished contact surfaces minimize frictional heat generation, which is particularly crucial when navigating mountainous terrain with constant gear shifting. This thermal efficiency translates directly to reduced transmission fluid degradation and lower maintenance costs over the vehicle’s operational lifetime. Compatibility extends across HOWO’s T-series trucks produced between 2018-2023, with identical dimensional specifications whether installed in manual or automated manual transmissions.
The metallurgical composition of the AZ2210030035 incorporates chromium-molybdenum alloy steel (20CrMnTi grade), providing exceptional resistance to micro-pitting – a common failure point in haulage applications where vehicles frequently switch between loaded and empty configurations. Rigorous endurance testing demonstrates consistent performance through 750,000 load cycles under maximum torque conditions, equivalent to approximately 600,000 kilometers of heavy cargo transport. Unlike aftermarket alternatives, each AZ2210030035 gear undergoes magnetic particle inspection post-machining to detect potential subsurface flaws invisible to conventional visual examination.
Optimal Operation & Maintenance Guide
Proper lubrication is paramount for achieving the maximum service life from the AZ2210030035 countershaft drive gear. Technicians should exclusively use GL-4 or GL-5 grade transmission oils meeting SAE 80W-90 viscosity specifications, as improper lubricant selection accelerates tooth surface deterioration. Periodic fluid analysis at 50,000-km intervals provides early detection of abnormal wear patterns before component damage occurs. During routine transmission service, inspection should focus on identifying fine metallic particles in the drain pan magnet – primary indicators of incipient gear deterioration when replacing the AZ2210030035 component. Installation procedures mandate verifying backlash clearance at three equidistant positions around the gear circumference, maintaining 0.15-0.25mm tolerance bands for optimal acoustic performance.
Technical Specifications
- Tooth Count: 28 helical teeth with 22-degree pressure angle
- Module: 4.25mm ensuring optimal strength-to-weight ratio
- Surface Hardness: 58-62 HRC through carburizing treatment
- Core Hardness: 35-40 HRC maintaining impact resistance
- Weight: 8.7kg ¡À0.2kg balancing rotational inertia
- Dimensional Accuracy: DIN 6 tolerance class manufacturing
- Temperature Range: Operational from -40¡ãC to 160¡ãC
In comparative field testing across similar gear products, the AZ2210030035 consistently demonstrated 18-22% longer service life when installed in aggregate transport applications where frequent gear changes under load induce accelerated fatigue. The helical design creates continuous tooth engagement throughout the rotation cycle, eliminating the shock loading characteristic of spur gears during meshing transitions. This engineering refinement significantly extends synchronizer component life in HOWO transmission assemblies by reducing peak shift force requirements. Vehicle operators report noticeably smoother gear transitions in skip-shift scenarios when descending gradients with engine braking, particularly in 7LL gearbox configurations common across HOWO’s mining and quarrying fleets.
Installation Procedures for Longevity
Before installing the AZ2210030035 countershaft drive gear, technicians must thoroughly clean the transmission casing with non-residual solvents to prevent abrasive contamination. Critical mounting surfaces require verification with straightedges to detect warping exceeding 0.05mm across any plane. Component seating depth should be measured with dial indicators prior to securing lockplates, as improper axial positioning creates parasitic loading throughout the gear train. Break-in procedures following installation involve progressively increasing loads during the initial 1,500km, avoiding sustained high-torque operation during this bedding-in phase.
Diagnostic monitoring during post-installation test drives should detect abnormal harmonic frequencies between 800-1200Hz using acoustic analyzers – potential indicators of micro-misalignment requiring correction. Maintenance logs should document any changes in shift quality, as increased selector resistance often precedes measurable tooth deterioration in countershaft gears. Periodic visual inspection through transmission fill ports using borescopes can identify abnormal tooth contact patterns before performance degradation occurs when handling the AZ2210030035 installation.
Operational economics demonstrate significant cost advantages in specifications with the AZ2210030035 gear specification. Fleet maintenance records indicate 34% reduction in transmission-related downtime compared to standard alternatives when averaging five-year ownership cycles. The enhanced surface durability decreases metal contamination in lubrication systems, extending oil change intervals by 30% in typical haulage applications. This particular countershaft drive gear integrates perfectly with HOWO’s transmission design philosophy, where balanced power delivery takes priority over peak horsepower figures for improved fuel efficiency in heavy payload scenarios. Technical support teams continuously analyze failure modes to implement design refinements in subsequent production batches of the AZ2210030035 component.
Original Equipment Manufacturer Specifications for Genuine HOWO Transmission Performance
