OEM AZ000052000301
Achieve flawless articulation with the AZ000052000301 Spherical Pin Assembly, a precision‑engineered pivot component designed for SINOTRUK Howo trucks. This genuine assembly is a cornerstone of our premium Sinotruk howo parts range, manufactured from high‑strength alloy steel with advanced heat treatment to deliver exceptional load‑bearing capacity and self‑aligning performance. The AZ000052000301 spherical pin assembly provides the critical, maintenance‑free pivot point that absorbs misalignment in suspension links, steering linkages, and drivetrain components.
| Parameter | Specification |
|---|---|
| OEM Number | AZ000052000301 |
| Product Name | Spherical Pin Assembly (Self‑Aligning Pivot) |
| Material | Forged alloy steel (42CrMo4) / Induction hardened / Zinc‑nickel plated |
| Ball Diameter × Pin Diameter | Ø40 mm × Ø25 mm (±0.01 mm) |
| Overall Length (center to end) | 110 mm ±0.3 mm |
| Maximum Dynamic Load | 95,000 N (9.7 tonnes) |
| Tilt Angle (max.) | ±15° |
| Hardness (Ball / Pin) | 58‑62 HRC / 52‑58 HRC |
| Corrosion Protection | Zinc‑nickel plating (720h salt spray) + passivation |
| Compatible Models | SINOTRUK Howo A7, T7H, ZZ4257, ZZ1257 – suspension links, steering drag links, stabilizer bars |
The spherical ball is hot‑forged from 42CrMo4 steel, then precision‑ground to a mirror finish, providing ultra‑low friction and self‑aligning capability under high angular misalignment.
Rated for 95,000 N dynamic load, the pin assembly safely transfers suspension and steering forces while accommodating radial and angular misalignment.
Zinc‑nickel plating with trivalent passivation provides outstanding rust resistance, ensuring the assembly remains serviceable in harsh road salt and mud environments.
The self‑lubricating polymer liner eliminates the need for periodic greasing, reducing maintenance costs and preventing contamination ingress.
This genuine spherical pin assembly is the factory‑specified pivot component for the following SINOTRUK Howo systems:
The AZ000052000301 Spherical Pin Assembly is precision‑forged from 42CrMo4 alloy steel, a material renowned for its exceptional combination of strength, toughness, and fatigue resistance. The spherical ball is induction‑hardened to 58‑62 HRC and ground to a mirror finish with a surface roughness of Ra 0.2 µm, ensuring minimal friction and exceptional wear life. The matching socket incorporates a self‑lubricating PTFE‑lined bearing that eliminates the need for external lubrication while accommodating angular misalignment up to ±15°.
In heavy‑duty truck suspension and steering systems, a worn or substandard spherical pin can lead to driveline vibration, premature tire wear, and loss of vehicle control. The AZ000052000301 eliminates these risks by providing a precisely engineered, fully traceable assembly that maintains its dimensional accuracy and articulation smoothness throughout its service life. Fleet data shows that using genuine spherical pin assemblies reduces suspension linkage failures by 89% compared to generic alternatives, directly improving vehicle stability and driver confidence.
Installation follows standard suspension and steering procedures. The pin is inserted into the mating bracket or link, and the retaining nut is torqued to the specified value (220 Nm for M20 thread). No additional lubrication is required, as the self‑lubricating liner provides a permanent low‑friction interface. Always verify that the spherical joint moves freely through its full angular range after installation.
Quality control for the AZ000052000301 includes 100% dimensional inspection using coordinate measuring machines to verify ball diameter, pin straightness, and housing geometry. Each batch undergoes hardness testing to confirm case depth and core hardness meet specifications. Samples are subjected to dynamic load testing to validate a minimum capacity of 110,000 N before permanent deformation. The zinc‑nickel plating thickness is verified with X‑ray fluorescence to ensure consistent corrosion protection. Only assemblies that pass these rigorous checks are released for sale.
Environmental responsibility is embedded in the manufacturing process. The steel used contains 40% recycled content, and the forging process uses energy‑efficient induction heating with waste heat recovery. Zinc‑nickel plating is performed in a facility with zero liquid discharge, recovering 98% of process water. By choosing this genuine component, you support sustainable manufacturing without compromising on performance.
For fleet maintenance operations, the AZ000052000301 spherical pin assembly is available individually in protective polybags or in bulk packs of 5, 10, and 20 units. Each assembly is laser‑etched with the OEM part number and batch code for full traceability. Bulk orders are eligible for volume discounts and can be shipped directly from regional distribution centers. The packaging includes installation torque specifications and a QR code linking to a video guide for proper alignment.
Field performance data collected from over 2,400 SINOTRUK Howo trucks operating in mining, construction, and long‑haul applications demonstrates that the AZ000052000301 assembly achieves a service life exceeding 1,400,000 kilometers with no reported failures. Fleet managers report that standardizing on this genuine spherical pin has eliminated suspension noise complaints and reduced steering linkage repairs by 76%.
When ordering, verify that the pin diameter and ball size match your application. The AZ000052000301 is designed for standard SINOTRUK Howo suspension and steering interfaces with 40 mm ball diameter and M20 thread. For applications requiring different dimensions, refer to the vehicle’s parts manual. Technical support is available through authorized dealer channels to assist with compatibility questions.
In summary, the AZ000052000301 Spherical Pin Assembly represents the definitive pivot solution for SINOTRUK Howo trucks. Its forged alloy steel construction, self‑lubricating design, and superior corrosion protection ensure that suspension and steering linkages articulate smoothly and precisely under the most demanding conditions. By investing in this genuine component, you protect your vehicle’s handling, reduce maintenance downtime, and maximize operational safety.
During routine maintenance, inspect the AZ000052000301 spherical pin for signs of corrosion, scoring, or excessive play. Replace immediately if any damage is visible or if the ball exhibits radial movement beyond 0.2 mm.
Verify retaining nut torque at 220 Nm. Cycle the joint through its full range; any binding or notching indicates wear. Replace the assembly as a complete unit.
Aftermarket spherical pin assemblies often use lower‑grade steel with inadequate hardening, poor surface finish, and non‑self‑lubricating liners that lead to premature wear, noise, and failure. The genuine AZ000052000301 is manufactured from certified 42CrMo4 steel with precision induction hardening, a PTFE‑lined bearing for maintenance‑free operation, and a heavy‑duty zinc‑nickel coating that meets SINOTRUK’s durability standards. Counterfeit assemblies may appear similar but fail under load or corrode, causing costly downtime and safety hazards. With the OEM assembly, you receive a fully traceable, load‑tested component engineered for the life of your vehicle.
Preparation: Clean the mounting bracket and housing thoroughly. Inspect for burrs or damage. Apply a thin film of anti‑seize to the pin shank if desired (optional).
Securing: Insert the pin into the housing, ensuring the spherical ball seats correctly. Install the retaining nut and torque to 220 Nm. Verify smooth articulation through full angular range.
After installation, cycle the suspension or steering component to full travel to ensure no binding. Re‑check torque after the first 500 operating hours.
Tested to 5 million oscillation cycles at rated load without loss of function or liner wear, validated by independent durability testing.
Maintains dimensional stability and articulation smoothness from -50°C to +150°C, ensuring consistent performance in all climates.
Manufactured with 40% recycled steel content. Forging flash and machining scrap are 100% recycled, reducing CO₂ emissions by 32% compared to conventional steel production.
Induction heating uses IGBT power supplies with 92% efficiency. Plating facility powered by 60% renewable energy with zero liquid discharge.
Every AZ000052000301 spherical pin assembly features a laser‑etched batch code and SINOTRUK logo for complete traceability. When ordering from authorized channels, you receive the latest production revision with optimized heat treatment and enhanced corrosion protection—critical details often omitted by generic suppliers. Pair this assembly with genuine SINOTRUK Howo hardware for a complete, factory‑correct pivot system.
To verify authenticity, inspect the surface finish and the presence of the OEM part number. Genuine AZ000052000301 assemblies feature a uniform satin finish with consistent case hardening depth and a mirror‑finished ball surface. Our global logistics network ensures rapid delivery to any heavy‑duty service center. Choose this genuine spherical pin assembly to eliminate pivot failures, protect your suspension, and keep your SINOTRUK Howo operating reliably for millions of kilometers.
AZ000052000301 – 100% Genuine SINOTRUK Howo Spherical Pin Assembly • Absolute Articulation Precision for Uncompromised Suspension Performance • No forms, only premium components.
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