Product Introduction
T11-3001011 Model-Exact Long-Lasting Quality-Assured Steering Knuckle for Chery
The Steering Knuckle, a pivotal part in automotive steering systems, is crucial for vehicle operation. It effectively transfers and bears the front - end loads of the vehicle, supporting and enabling the front wheels to rotate around the kingpin, thus facilitating smooth vehicle steering.
Crafted with high - strength materials, it can endure complex impact loads from various road conditions during driving. Structurally, it combines features of shafts, sleeves, discs, and forks, mainly consisting of support shaft necks, flange plates, and fork frames. This design ensures both high - performance steering and overall vehicle stability, making it an essential component for safe and efficient driving.
Product Advantage
1. High-Strength Forged Material for Extreme Durability
Adopting 42CrMo alloy steel (a premium material for auto parts), our Steering Knuckle undergoes precision forging and quenching & tempering treatment. The tensile strength reaches ≥1080MPa, and the Brinell hardness is 280 - 320HB, which is 30% higher than ordinary cast steel alternatives. It can withstand continuous impact loads of up to 500kN from rough roads, ensuring long-term reliability even in harsh driving conditions. This material advantage makes our heavy-duty steering knuckle a top choice for stable performance.
2. CNC Precision Machining for Zero-Fitment Issues
Equipped with 8 sets of imported CNC machining centers, we achieve a machining accuracy of ±0.02mm for key parts like the kingpin hole and flange surface. The surface roughness (Ra) is controlled within 1.6μm, which effectively reduces friction during steering and ensures smooth assembly with other steering components. Over 10,000 units have been installed without fitment complaints, verifying the excellence of our precision-machined steering knuckle.
3. Integrated Structural Design for Enhanced Stability
The product adopts an integrated forging structure (instead of split welding), which increases the structural rigidity by 40% compared with traditional designs. The optimized fork frame angle (15°) and reinforced support shaft neck (diameter increased by 5mm) effectively disperse front-end loads, reducing steering vibration by 25% during high-speed driving. This design makes our steering knuckle ideal for improving overall vehicle steering stability.
4. Strict Multi-Stage Quality Inspection for Zero Defects
We implement a 6-stage inspection process: raw material chemical composition testing, forging temperature monitoring, machining dimensional inspection, surface anti-rust treatment detection, dynamic load test (simulating 100,000km driving), and final assembly verification. The defect rate is controlled below 0.03%, far lower than the industry average of 0.1%. This strict quality control system ensures every reliable steering knuckle meets international standards.
5. Universal Compatibility with Wide Application Range
While developed for specific models, our steering knuckle is designed with moderate universality. It can be adapted to 80% of similar - series steering systems through minor adjustments (e.g., replacing the flange gasket). This flexibility helps reduce inventory costs for auto repair shops and parts distributors.
Technical Parameters
| Parameter Category | Parameter Name | Specification Value (with Unit) | Remarks (Key Advantage) |
| Basic Information | Product Model | T11-3001011 | Customizable according to customer demands for versatile steering knuckle |
| Net Weight | 3.8 ± 0.1 kg | Optimized weight balance, reducing steering load by 8% |
| Gross Weight (with Package) | 4.2 ± 0.1 kg | EPE foam + carton packaging, anti-collision rate 100% |
| Material Performance | Base Material | 42CrMo Alloy Steel | Premium auto-grade material, tensile strength ≥1080MPa (30% higher than cast steel) |
| Hardness (After Heat Treatment) | 280 - 320 HB | Quenching & tempering process, ensuring wear resistance and toughness balance |
| Elongation Rate | ≥12% | Strong anti-deformation ability, adapting to complex road impact |
| Anti-Rust Coating Thickness | 80 - 100 μm | Electrostatic spraying process, salt spray test ≥500h (meets ISO 9227 standard) |
| Structural Dimension | Support Shaft Neck Diameter | 35 ± 0.02 mm | Reinforced design, increasing load-bearing capacity by 40% |
| Kingpin Hole Diameter | 28 ± 0.01 mm | Precision-machined, ensuring smooth steering rotation |
| Flange Plate Thickness | 12 ± 0.03 mm | High-strength structure, preventing flange deformation under heavy load |
| Fork Frame Opening Angle | 15 ± 0.5 ° | Optimized angle, effectively dispersing front-end driving loads |
| Machining Precision | Dimensional Tolerance of Key Parts | ±0.02 mm | Achieved by imported CNC machining centers (8 sets in total) |
| Surface Roughness (Ra) | ≤1.6 μm | Reducing friction between steering components, extending service life |
| Concentricity of Kingpin Hole | ≤0.015 mm | Ensuring stable steering, reducing vibration by 25% at high speed |
| Performance Index | Maximum Static Load-Bearing Capacity | ≥500 kN | Withstanding extreme road impact, meeting heavy-duty use demands |
| Steering Vibration Damping Rate | ≥25% | Improving driving comfort, reducing driver fatigue during long journeys |
| Estimated Service Life | ≥300,000 km | Verified by 100,000km dynamic load test (equivalent to 5-year normal use) |
| Quality Standard | Production Standard | ISO/TS 16949 | Complying with international automotive parts quality system |
| Defect Rate (After Final Inspection) | ≤0.03% | 6-stage strict inspection, far lower than industry average (0.1%) |
| Certification | CE, SGS | Recognized by global markets, exported to 20+ countries |
Product Uses
Here are specific application scenarios of Steering Knuckle:
1. Daily Urban Commuting Scenarios
Ideal for daily travel on urban roads with frequent starts, stops, and turns. Its ±0.02mm machining precision reduces steering friction, ensuring smooth control even in congested traffic. With ≥25% vibration damping rate, it eases driver fatigue during long daily commutes (30 - 60km).
2. Rough Road Driving Scenarios
Suitable for roads with potholes, gravel, or uneven pavement. Made of 42CrMo alloy steel (tensile strength ≥1080MPa), it withstands ≤500kN impact loads. The integrated forging structure enhances durability, reducing maintenance frequency by 40% compared to ordinary steering knuckles in such scenarios.
3. Long-Distance Highway Driving Scenarios
Perfect for high-speed long-distance trips (≥200km). Its optimized fork frame angle (15±0.5°) ensures stable steering at high speeds. With ≤0.015mm kingpin hole concentricity, it lowers steering vibration by 25%, improving driving safety and comfort for long journeys.
4. Commercial Fleet Operation Scenarios
Adaptable to commercial fleets with high annual mileage (≥50,000km). Boasting ≥300,000km service life, it reduces replacement frequency. The ≤0.03% defect rate guarantees stable batch performance, cutting fleet maintenance costs by 25% yearly.
5. Auto Repair & Aftermarket Replacement
A top choice for auto repair shops and aftermarket distributors. It fits 80% of similar-series steering systems via minor adjustments. With 10,000+ units installed without fitment issues, it meets quick replacement needs, boosting repair shop efficiency by 30%.
Product Operate Guide
Pre-Installation Check: Verify the steering knuckle’s surface (Ra ≤1.6μm, no scratches) and dimensions (e.g., kingpin hole diameter 28±0.01mm). Ensure matching with adjacent parts; clean rust on mating surfaces.
Installation: Use torque wrench to fasten flange bolts (torque: 80-90N·m). Align kingpin hole concentricity (≤0.015mm) to avoid steering jitter. Test rotation after assembly—should be smooth, no stuck.
Daily Maintenance: Inspect every 10,000km; check coating (≥80μm thickness, no peeling). Grease kingpin hole every 30,000km to maintain low-friction performance, extending service life (≥300,000km).
