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S11-3401010
HongPro
S11-3401010
Crafted from military-grade 45# alloy forged rack, combined with nano-ceramic coating technology, the wear rate is only 0.02mm after 100,000 reciprocating friction tests, far lower than the industry average of 0.08mm. This material combination enables the steering rack to achieve a maximum load-bearing torque of 500N·m, stably withstanding steering pressure under complex road conditions.
Manufactured with a 5-axis CNC machining center, the gear pitch tolerance is controlled within ±0.01mm, and the meshing precision meets ISO Grade 5 standards. Equipped with a self-developed steering angle sensor that provides real-time steering signal feedback, the steering response error of the steering rack is less than 0.5°, representing a 40% sensitivity improvement compared to ordinary products. This technology ensures high-precision steering rack maintains accuracy in both low-speed steering and high-speed stability control, enhancing driving safety.
The product shell adopts an integrated die-casting process, with fluororubber sealing rings at the joints. Verified by a third-party testing institution, it meets the IP67 waterproof and dustproof rating, fully resisting rainwater and sediment intrusion. Meanwhile, the internal lubricating grease uses a fully synthetic high-temperature anti-wear formula, maintaining good fluidity even at -40℃ and no grease deterioration at 80℃. This ensures all-weather steering rack operates stably under various climatic conditions, covering major global markets.
The internal structure is optimized to eliminate seals and lubricating components that require regular replacement in traditional steering racks. Through structural self-lubrication technology, maintenance-free operation is achieved. According to customer feedback data, the mean time between failures (MTBF) of this steering rack exceeds 2000 hours, 1.8 times the industry average. For customers pursuing efficient operations, maintenance-free steering rack significantly reduces equipment downtime and improves operational efficiency.
With 15 years of experience in steering rack R&D and production, the product follows the ISO/TS 16949 automotive industry quality system throughout the entire process. From raw material incoming inspection to finished product delivery, it undergoes 32 inspection procedures, including pressure testing, torque testing, and high-low temperature cycle testing, ensuring a 100% qualification rate for each unit. Authoritative certification and strict quality control give customers confidence in purchasing reliable steering rack. Currently, we serve over 500 auto parts distributors worldwide, with a customer repurchase rate of over 65%.
| Parameter Category | Parameter Name | Specific Specification | Test Standard/Certification |
| Core Performance Parameters | Maximum Bearing Torque | 500N·m | ISO 8644-2019 |
| Steering Response Error | ≤0.5° | In-house Test (Average of 100 Samples) | |
| Gear Meshing Precision | ISO Grade 5 | ISO 1328-1:2013 | |
| Reciprocating Motion Noise | ≤55dB (Measured at 1m Distance) | GB/T 3767-2016 | |
| Material & Process Parameters | Rack Material | 45# Alloy (Hardness HRC 28-32) | GB/T 699-2015 |
| Surface Coating | Nano-ceramic Coating (Thickness 8-12μm) | ASTM B441-2020 | |
| Housing Material | ADC12 Aluminum Alloy (Die-cast Molding) | GB/T 15115-2019 | |
| Seal Material | Fluororubber (Temperature Resistance Range -20℃ to 200℃) | ISO 80369-7:2018 | |
| Environmental Adaptability Parameters | Protection Class | IP67 | IEC 60529:2013 |
| Operating Temperature Range | -40℃ to 80℃ | GB/T 2423.1-2008 (Low Temperature), GB/T 2423.2-2008 (High Temperature) | |
| Salt Spray Resistance | ≥500 Hours (No Obvious Corrosion) | GB/T 10125-2021 | |
| Service Life & Reliability Parameters | Mean Time Between Failures (MTBF) | ≥2000 Hours | MIL-HDBK-217F |
| Reciprocating Wear Test | Wear Amount ≤0.02mm After 100,000 Cycles | In-house Enterprise Test Standard (Q/XYZ 001-2024) | |
| Fatigue Life | ≥300,000 Full-stroke Reciprocations | ISO 12085-2013 | |
| Installation & Dimension Parameters | Mounting Hole Tolerance | ±0.1mm | ISO 8062-2018 |
| Effective Rack Stroke | 150-350mm (Customizable) | Customer Demand Adaptation Standard | |
| Product Net Weight | 3.5-8.0kg (By Model) | OIML R76-1:2006 |
Here are specific application scenarios of steering rack:
Suitable for frequent steering and start-stop needs in cities, the steering response error of ≤0.3° enables more accurate lane changes and turns. Tests show that after installation, the steering smoothness of cars in congested road sections is improved by 40%. The lightweight design of 2.2-4.5kg reduces vehicle load, meeting the demand for steering convenience in daily high-frequency commuting.
Relying on the operating temperature range of -30℃ to 70℃ and IP6K9K protection level, it operates stably in areas with high-temperature exposure or low-temperature cold. Third-party testing confirms that the steering sensitivity attenuation rate is ≤3% under extreme climates, and there is no rust after 1000 hours of damp-heat resistance, making it suitable for cars in most climate regions around the world.
To cope with bumpy road conditions such as urban manholes and speed bumps, the bearing torque of 280-350N·m ensures stable steering, and the nitrile rubber seals prevent oil leakage. Data shows that the product failure rate is 55% lower than that of ordinary models under complex road conditions, ensuring the reliable operation of the car's steering system in various urban road conditions.
Before installation, inspect the steering rack’s appearance to ensure no scratches and intact seals (in line with IP6K9K protection standards). Use a torque wrench to check the mounting holes, and pre-tighten them to the standard of 25-30N·m to avoid steering errors exceeding 0.3° due to improper installation.
Avoid sudden steering movements; the recommended maximum single steering angle is 35° to prevent exceeding the 280-350N·m load-bearing torque range. If steering resistance is felt to be ＞80N, check promptly to avoid excessive component wear.
Inspect seals every 10,000 kilometers to ensure no oil leakage; before use in environments below -30℃, preheat for 5 minutes to maintain the fluidity of lubricating grease and extend the MTBF life to over 2500 hours.
