Product Introduction
L3001201B1 Sturdy Reliable Compatible Steering Knuckle for Lifan
The Steering Knuckle for lifan is a crucial auto part. It plays a vital role in the vehicle's steering system, bearing and transferring loads while enabling smooth wheel rotation for accurate steering. Made from high - strength materials, it can withstand complex forces during driving. Rigorously tested, it ensures durability and reliability. This part is designed to match lifan models precisely, guaranteeing a perfect fit and stable performance. It is an essential component for maintaining the vehicle's steering function and driving safety.
Product Advantage
1. High-Strength Forged Steel Material for Superior Durability
Crafted from 42CrMo forged alloy steel—a material widely recognized in the auto parts industry for its exceptional tensile strength (≥1080MPa) and impact resistance (≥60J/cm²). This ensures the Steering Knuckle for Lifan can withstand long-term dynamic loads from road bumps and steering operations, reducing wear failure rate by over 35% compared to ordinary cast iron alternatives. It’s the ideal choice for enhancing the longevity of the vehicle’s steering system.
2. Precision CNC Machining for Perfect Fitment
Adopting 5-axis CNC integrated machining technology, the key mating surfaces (such as hub mounting and steering arm connection) achieve a machining accuracy of ±0.02mm. Each Steering Knuckle for Lifan undergoes 3 rounds of dimensional inspection using a coordinate measuring machine (CMM), ensuring 100% compatibility with original Lifan steering components. No extra modification is needed during installation.
3. Advanced Anti-Corrosion Coating for All-Condition Adaptability
Equipped with electrophoretic coating + powder coating dual-layer protection, the product achieves a salt-spray resistance of ≥1000 hours (tested per ISO 9227 standard). It effectively resists rust and corrosion caused by rain, snow, road salt, and humid environments—even in harsh coastal or cold regions. The coating also maintains high adhesion, avoiding peeling during long-term use.
4. Rigorous Performance Testing for Reliable Safety
Every batch of Steering Knuckle for Lifan passes 3 core tests: ① Static load test (withstands 2.5 times the maximum design load without deformation); ② Fatigue test (1 million cycles of simulated steering without cracks); ③ Impact test (resists 50km/h lateral impact). The pass rate remains 100% over 5 years of production, fully meeting international auto safety standards (ECE R122).
5. OE-Grade Quality with Cost-Effective Solution
Produced in a factory with ISO/TS 16949 certification (the highest standard for auto parts manufacturing), the product replicates OE (Original Equipment) quality in material, structure, and performance. However, by optimizing the supply chain and production process, we offer it at 20-30% lower than OE prices. It’s a high-value alternative for both aftermarket replacement and repair shops.
Technical Parameters
| Parameter Category | Parameter Name | Specification | Test Standard / Authority |
| Core Material & Dimension | Material | 42CrMo alloy steel (forged) | GB/T 3077-2015 (Chinese standard for alloy steel) |
| Tensile Strength | ≥1080 MPa | ISO 6892-1:2019 |
| Yield Strength | ≥930 MPa | ISO 6892-1:2019 |
| Hardness (Surface) | 28-32 HRC | ASTM E18-22 |
| Machining Accuracy (Key Surfaces) | ±0.02 mm (hub mounting face, steering arm connection hole) | ISO 286-1:2010 |
| Weight Tolerance | ±50 g | In-house Q/C standard (aligned with ISO 8015) |
| Performance & Durability | Static Load Capacity | ≥2.5 times the maximum design load (no deformation) | SAE J2530:2020 |
| Fatigue Life | ≥1,000,000 cycles (simulated steering operations) | ISO 12107:2012 |
| Impact Resistance | ≥60 J/cm² (at -40℃ ~ 80℃) | ISO 148-1:2016 |
| Corrosion Resistance (Salt-Spray Test) | ≥1000 hours (no red rust, no coating peeling) | ISO 9227:2017 (NSS test) |
| Operating Temperature Range | -40℃ ~ 120℃ (stable performance without structural failure) | IEC 60068-2-1:2007 (low temp) / IEC 60068-2-2:2007 (high temp) |
| Manufacturing & Certification | Production Process | Forging → Heat treatment (quenching + tempering) → 5-axis CNC machining → Double-layer coating → 100% dimensional inspection | ISO/TS 16949:2016 (production system) |
| Coating Type | Electrophoretic coating (inner layer) + Powder coating (outer layer) | ISO 12944-5:2018 |
| Coating Thickness | 60-80 μm (total) | ISO 2808:2019 |
| Quality Certification | ECE R122 (auto safety), ISO 9001:2015 (quality management) | Official certification documents available |
| Quality Pass Rate (Per Batch) | ≥99.8% (based on 5-year production data, 100,000+ units manufactured) | In-house quality report (available upon request) |
Product Uses
Here are specific application scenarios of Steering Knuckle:
1. Daily Urban Commuting
Ideal for daily urban driving with frequent steering operations (e.g., traffic jams, turns at intersections). Its ±0.02mm machining accuracy ensures smooth steering response, reducing driver fatigue. Backed by 100% batch pass rate, it maintains stable performance during 2-3 hours of daily commuting.
2. Long-Distance Highway Travel
Suitable for long-distance highway trips (often 200+ km/day) with continuous load-bearing. With ≥1080MPa tensile strength, it resists persistent pressure from high-speed driving. The 1000-hour salt-spray resistance also handles highway dust and occasional rain erosion.
3. Complex Road Conditions (Suburbs/Rural Areas)
Perfect for rough suburban/rural roads (gravel, potholes). It passes 1 million-cycle fatigue tests, enduring repeated shocks from uneven roads. The 2.5x design load-bearing capacity prevents deformation, ensuring safe steering even on bumpy sections.
4. Aftermarket Replacement for Aged Parts
Key choice for replacing original steering knuckles with over 50,000 km usage. OE-grade quality matches original fitment (no extra modification needed), while 20-30% lower cost than OE parts saves repair budgets for repair shops and car owners.
5. Fleet Maintenance (Logistics/Shared Vehicles)
Essential for fleet maintenance (logistics vans, shared cars) with high annual mileage (100,000+ km). Its ≥60J/cm² impact resistance and -40℃~120℃ operating range adapt to frequent use and varying climates, reducing fleet downtime.
Product Operate Guide
Pre-Installation Check: Verify the part’s surface (no scratches) and match OE specs. Use a torque wrench to confirm mounting holes align (tolerance ±0.02mm) for safe fitting.
Installation: Tighten bolts per 50-60 N·m torque (SAE standard). Avoid over-tightening; test steering post-install to ensure smooth, no-jerk movement.
Maintenance: Inspect quarterly. Clean surface dirt; if used in harsh areas, recheck coating (≥1000-hour salt-spray resistance) to prevent corrosion.
