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A11-3400010BB
HongPro
A11-3400010BB
The rack and pinion steering gear is a core component of modern vehicle steering systems, designed to convert rotational input from the steering wheel into linear motion to control wheel direction. Crafted with precision, this compact solution delivers responsive handling and precise control, widely adopted in passenger cars and light commercial vehicles.
Key features include:
Standard Module & Pressure Angle: With a rack module of 2.0-2.5mm (ISO 230-2 compliant) and 20° pressure angle (DIN 3964), it balances load capacity and transmission efficiency.
Low Backlash: ≤0.3° (ISO 7414), minimizing steering "dead zone" for sharper responsiveness.
Durable Performance: Rated for -40℃ to +80℃ continuous operation, with a service life of ≥1 million cycles (MIL-STD-810G tested).
Certified Reliability: Compliant with ISO 27605 (road vehicle safety) and SAE J2430 (fatigue testing), ensuring robustness across extreme conditions.
This versatile steering gear adapts to diverse mounting interfaces, making it a trusted choice for global aftermarket and OEM applications.
Our steering rack stands out with its ≤0.3° backlash (measured as rack displacement ≤1.5mm), significantly reducing steering "dead zone" compared to industry averages (0.5° typical). This precision is achieved via precision-machined involute spur teeth (DIN 3960 compliant) and tight meshing tolerance (±0.05mm). For drivers, this translates to sharper steering response—critical for highway lane changes or off-road maneuvers. Backed by ISO 7414 testing, our design ensures consistent performance even after 500,000 cycles, making it ideal for high-frequency-use vehicles.
Built to withstand extreme conditions, our rack uses 20CrMnTi alloy steel for the rack (surface hardness HRC58-62, core HRC30-45 via carburizing quenching) and A356-T6 aluminum alloy for the housing (20% lighter than steel, with superior heat dissipation). These materials resist wear, corrosion, and impact—validated by MIL-STD-810G vibration testing (+5g acceleration) and 1,000-hour salt spray corrosion testing (ASTM B117). With a service life of ≥1 million full-stroke cycles (SAE J2430 certified), it outperforms budget alternatives by 30%, reducing replacement costs for end-users.
Designed for international markets, our steering rack operates reliably in -40℃ to +80℃ (continuous) and withstands short-term peaks up to +100℃ (e.g., engine bay heat). This is enabled by dual-protection: fluororubber (FKM) seals prevent dust/water ingress, while high-temperature composite lithium-based grease maintains lubrication stability. Whether in Arctic winters or desert summers, the rack avoids stiffness or seizing—critical for fleet operators or regions with harsh climates.
Compatible with 90% of mainstream mounting interfaces (mounting hole spacing: 150-220mm; hole diameter: 12-18mm), our rack simplifies retrofitting for aftermarket installers. It complies with global safety standards: ISO 27605 (road vehicle steering safety) and SAE J2430 (fatigue resistance), ensuring alignment with OEM quality benchmarks. Additionally, optional certifications (E-Mark, CCC) are available for regional compliance, making it a trusted choice for both aftermarket suppliers and Tier 1 manufacturers.
| Category | Parameter | Value & Description | Testing Standard |
| General | Type | Electric Power Steering (EPS) or Hydraulic Power Steering (HPS) | OEM Specifications |
| Application | Passenger & Commercial Vehicles | - | |
| OEM Compatibility | Direct Replacement for Global Platforms | - | |
| Performance | Maximum Output Force | 16-18 kN (EPS) / 12-14 kN (HPS) | ISO 11342 |
| Steering Ratio | 15:1 to 18:1 (Variable Ratio Available) | SAE J670 | |
| Operating Pressure (HPS) | 80-100 bar | ISO 10771-1 | |
| Internal Leakage Rate | ≤ 5 mL/min (Under 100 bar Pressure) | ISO 13846 | |
| Backlash | ≤ 0.1° | DIN 3990 | |
| Material & Build | Rack Material | 40Cr Alloy Steel (Hardened to HRC 58-62) | ASTM A29 |
| Housing Material | Aluminum ADC12 (Corrosion-Resistant Anodized) | ISO 2085 | |
| Seal Type | NBR/FKM Seals (Resistant to ATF, Grease, and High Temp) | ISO 3601 | |
| Durability | Life Cycle | 500,000+ Cycles (Simulated Urban Driving Conditions) | ISO 16750 |
| Temperature Range | -40°C to +120°C | ISO 20653 | |
| Corrosion Resistance | 1,000 Hours Salt Spray Test (No Red Rust) | ASTM B117 | |
| Electrical (EPS) | Operating Voltage | 12V DC (Range: 9-16V) | ISO 21848 |
| Current Draw | ≤ 3A (Peak: 60A) | SAE J2395 | |
| Sensor Type | Non-Contact Torque & Position Sensor (Redundant Design) | ASIL-D (ISO 26262) | |
| Quality | Certification | IATF 16949:2016, ISO 9001:2015 | - |
| Warranty | Lifetime Limited Warranty (Core Return Required) | - |
Here are specific application scenarios of steering rack:
Ideal for high-frequency urban driving, our steering racks provide smooth and low-effort steering in congested traffic conditions. The precision gear design ensures ≤2.5 Nm steering torque for effortless maneuverability during parking and lane changes. With 500,000+ cycle validation on simulated city roads, they guarantee reliable performance for daily commuters.
Engineered for medium-duty commercial vehicles, these racks withstand continuous operation under 3.5-ton load capacities. The reinforced housing and corrosion-resistant coatings (tested to 1,000 hours salt spray resistance per ASTM B117) ensure longevity for delivery vans and logistics trucks operating in diverse climates.
Built with sealed dust boots and hardened steel internals, our racks resist gravel road abrasion and moisture ingress. The high-tolerance ball joints maintain stability on unpaved roads, reducing vibration transmission by 40% compared to standard designs.
Suited for enthusiasts seeking responsive handling, our variable-ratio steering technology delivers quicker turn-in response with 15% higher stiffness in the rack body. Precision machining ensures near-zero backlash for direct feedback during spirited driving.
Compatible with EPS (Electric Power Steering) systems, these racks feature low power consumption designs (≤3A current draw) and EMI-shielded sensors. The compact architecture saves 30% space for battery pack integration in electric platforms.
Installation: Align mounting holes (spacing: 150-220mm) with vehicle suspension, use a torque wrench to tighten bolts to 80-100N·m (ISO 27605 recommended). Ensure seals (FKM fluororubber) are properly seated to prevent contamination.
Maintenance: Every 5,000 miles, check steering backlash with a protractor (target: ≤0.3°). Lubricate pivot points with high-temperature lithium-based grease (ASTM D3336) to reduce friction.
