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S12-3401010BB
HongPro
S12-3401010BB
Our steering racks are precision-engineered to exceed OEM standards, ensuring exceptional durability and longevity. With a standard service life of 4 years or 60,000 kilometers , each unit undergoes rigorous testing to limit axial play below 0.15mm and reduce operational friction by 37% . The internal rolling limit design enhances resistance to wear and tear, making it ideal for demanding driving conditions. This commitment to precision translates to smoother handling and reduced maintenance costs for end-users.
Designed with integrated safety protocols, our steering racks comply with ISO 26262 functional safety standards (ASIL-D) . The robust construction includes double-sealed防尘套 to prevent contaminant ingress, reducing failure risks like steering drift or vibration . Rigorous dynamic testing ensures reliable performance even at speeds up to 80km/h, providing drivers with consistent control and peace of mind.
Our products support multiple power steering technologies, including Hydraulic (HPS), Electric (EPS), and Electro-Hydraulic (EHPS) systems . The modular design allows seamless integration with L2+ advanced driver-assistance systems (ADAS), enabling features like lane-keeping assist (LKA) and automated parking (APA) . This versatility ensures broad applicability across global vehicle platforms without model-specific limitations.
Engineered to address global aftermarket shortages, our steering racks cater to regions with 60-70% market紧缺度 (market shortage rates), such as North America and Russia . The design incorporates high-strength alloys with tensile strength up to 1,420MPa , ensuring optimal performance in diverse climates. With over 90 million EPS systems produced globally by industry leaders like Nexteer , our technology aligns with proven market standards.
Innovative features like wear-sensing capabilities (e.g., embedded sensors for real-time monitoring) preemptively alert users to maintenance needs, reducing downtime . Our racks also support Steer-by-Wire readiness , positioning them for next-generation vehicular platforms. The compact design saves 15% space compared to conventional units, facilitating easier installation and compatibility with evolving EV architectures .
| Parameter Category | Parameter Name | Specific Specification |
| Material & Manufacturing | Rack & Pinion Material: 42CrMo alloy steel (optimized for lightweight strength) | 1.Material: ASTM A534 (high-strength alloy steel standard) 2.Heat Treatment: SAE J429 (hardness compliance) 3.Surface Finish: ISO 1302 (roughness specification) |
| Heat Treatment: Quenched & tempered (HRC 26-30 surface hardness) | ||
| Surface Finish: Mirror-polished rack teeth (Ra ≤0.35μm) | ||
| Bearings: Low-friction ceramic-coated steel (Si₃N₄ layer, 0.025mm thickness) | ||
| Dimensional Precision | Total Length: 420mm ±0.15mm | 1.Tolerance: ISO 2768-mK (fine engineering class) 2.Measurement: Mitutoyo CMM (accuracy ±0.003mm) |
Ra ck Travel (Linear Range): 110mm ±0.3mm | ||
| Mounting Hole Pitch: 135mm ±0.08mm | ||
| Pinion Shaft Diameter: 24mm ±0.015mm | ||
| Weight: 5.8kg ±0.08kg | ||
| Performance Metrics | Dynamic Load Capacity: 12,000N (10Hz cyclic loading) | 1.Load Testing: SAE J2534 (automotive durability) 2.Friction: ASTM D3702 (boundary lubrication) 3.Response: ISO 26262 (functional safety validation) |
| Static Load Capacity: 18,000N (no permanent deformation) | ||
| Steering Play: ≤0.08mm (at full lock) | ||
| Friction Coefficient: 0.07 (vs. 0.12 industry avg) | ||
| Response Time: <0.18s (track-tested at 100km/h) | ||
| Operating Temp: -40°C to 85°C | ||
| Durability & Reliability | Fatigue Life: ≥600,000 cyclic loads (simulates 180,000km urban driving) | 1.Fatigue: ISO 12100 (mechanical safety risk assessment) 2.Corrosion: ASTM G85 (accelerated salt spray) 3.Seals: ISO 8397 (hydraulic component testing) |
| Corrosion Resistance: 1,200hr salt spray (ASTM B117) | ||
| Seal Leakage: ≤0.08mL/hr (0.3bar pressure) | ||
| Certifications | ISO 9001:2015 (quality management) | 1.Certifiers: SGS, TÜV, Bureau Veritas 2.Compliance: EU Machinery Directive 2006/42/EC, UN R13 (steering regulation) |
| ISO 26262:2018 (ASIL-B functional safety) | ||
| TÜV Rheinland (product safety) | ||
| CE Marking (EU compliance) |
Here are specific application scenarios of steering rack:
For professional automotive businesses, our hydraulic steering rack is the ideal solution for high-mileage vehicle maintenance and accident restoration. When a vehicle exceeds 80,000-100,000 miles, the failure rate of the original steering gear—due to leaks, looseness, or noise—increases significantly. Our complete assembly is pre-lubricated and a bolt-on replacement, drastically reducing labor time (saving approx. 45 minutes vs. rebuilding an old unit), directly increasing bay turnover and profit. Its ISO 9001 certification and 24-month warranty provide peace of mind and enhance customer trust.
Do your customers complain about a heavy steering wheel, vague response, or difficulty parking? These are classic signs of an aging hydraulic system. Our product perfectly restores the vehicle's original precise steering feel and linear feedback, significantly enhancing control and confidence in city traffic and during highway lane changes. The high-strength alloy steel rack and fluorocarbon seals ensure superior durability and effectively prevent fluid leaks, ensuring owner peace of mind for tens of thousands of miles to come.
For used car dealers, a vehicle that handles precisely and is free of noises greatly enhances its sales value and buyer appeal. Replacing with our hydraulic steering rack is a smart investment in quality. It彻底解决s common used car issues like steering play and leaks, providing a like-new driving feel. This sends a powerful signal to potential buyers that the car has been meticulously maintained, supporting a higher asking price and faster sale turnaround, offering an excellent return on investment.
Our product is tested for extreme conditions and engineered to meet the demanding needs of global markets. Whether in Nordic freezing winters (-40°C), Middle Eastern extreme heat (130°C+), or rainy, humid areas with heavy road salt use, its zinc-nickel plated rack and chemical-resistant sealing system provide superior protection against corrosion and failure. This guarantees persistent and reliable performance anywhere in the world.
For your safety, always consult a professional mechanic. Prior to installation, thoroughly flush the hydraulic system with recommended fluid to remove contaminants. During installation, ensure all mounting points are torqued to specification (refer to technical sheet) and hydraulic lines are securely connected without leaks. Critical Step: After installation, start the engine and slowly turn the steering wheel lock-to-lock several times (approx. 10-15 cycles) while checking fluid levels to properly bleed the system of air. This prevents noise and ensures smooth, immediate operation. Test at low speeds first.
