loading
| Availability: | |
|---|---|
| Quantity: | |
A13-3401010FA
HongPro
A13-3401010FA
Our steering rack adopts forged SAE 1045 steel for the core rack bar, undergoing 3-stage heat treatment (quenching + tempering + stress relieving). This process boosts tensile strength to 900MPa, 30% higher than industry average (690MPa), and ensures wear resistance up to 500,000 steering cycles. The material meets ISO 683-11 automotive steel standards, eliminating deformation risks under high load and extending the steering rack service life significantly.
Equipped with imported Viton dual-lip seals (compliant with SAE J200 specifications), the steering rack achieves 0.01mm-level sealing precision. This design reduces hydraulic fluid leakage rate to less than 0.5ml/100h, far below the industry standard of 2ml/100h. It effectively prevents dust and moisture intrusion, maintaining stable performance of the hydraulic steering rack in harsh environments.
Each steering rack undergoes CNC machining with ±0.005mm tolerance, followed by dynamic balance calibration (≤5g·cm unbalance). This ensures steering backlash is controlled within 0.15mm, providing ultra-responsive handling. Our production line has passed IATF 16949 certification, with a 99.8% first-pass yield rate, guaranteeing consistent quality of every automotive steering rack.
The steering rack features a built-in polyurethane damping sleeve (Shore A 70 hardness) and optimized tooth profile (helical angle 12°). It reduces steering system vibration by 40% compared to conventional models, minimizing driver fatigue. Combined with a corrosion-resistant electrophoretic coating (salt spray test ≥1000h), it suits diverse climates, making it a reliable heavy-duty steering rack option.
| Parameter Category | Parameter Item | Specification | Authority/Standard Reference |
| Core Structure | Rack Bar Material | Forged SAE 1045 carbon steel | ISO 683-11 Automotive Steel Standard |
| Pinion Gear Material | 20CrMnTi alloy steel (carburized & quenched) | GB/T 3077 Alloy Structural Steel | |
| Gear Type | Helical rack - and - pinion (module: 2.5, pressure angle: 20°) | ISO 5398 Gear Geometry Standard | |
| Performance Index | Steering Backlash | ≤0.15mm | IATF 16949 Steering System Requirement |
| Maximum Operating Pressure | 14MPa (static), 10MPa (dynamic) | SAE J215 Hydraulic Component Standard | |
| Fluid Leakage Rate | ≤0.5ml/100h (at 10MPa working pressure) | ISO 18797 Hydraulic Seal Standard | |
| Service Life | ≥500,000 steering cycles (under standard operating conditions) | Internal Durability Test (ASTM D4179) | |
| Material & Coating | Rack Bar Coating | Electrophoretic coating (thickness: 20 - 30μm) | ISO 10289 Coating Standard |
| Seal Material | Viton fluoroelastomer (operating temperature: -20℃ ~ 150℃) | SAE J200 Rubber Seal Specification | |
| Damping Sleeve Material | Polyurethane (Shore A hardness: 70±5) | ASTM D2240 Hardness Test Standard | |
| Machining & Tolerance | Machining Tolerance | ±0.005mm (CNC turning/milling) | ISO 8015 Geometric Tolerance |
| Dynamic Balance Unbalance | ≤5g·cm | ISO 1940 Rotor Balance Standard | |
| Installation & Fitment | Mounting Interface Standard | ISO 4156 (flange type) / SAE J533 (threaded type) | International Automotive Fitment Norms |
| Overall Length | 380mm - 520mm (adjustable by model series) | Customized per Steering System Layout | |
| Weight | 3.2kg - 4.5kg | Material Density Calculation (ASTM E8) | |
| Environmental Adaptability | Salt Spray Resistance | ≥1000h (no red rust) | ASTM B117 Salt Spray Test |
| Operating Temperature Range | -40℃ ~ 120℃ | SAE J1980 Environmental Test Standard |
Here are specific application scenarios of steering rack:
In frequent stop - go urban traffic, our steering rack’s ≤0.15mm backlash ensures smooth, precise turns when navigating intersections or parking. It reduces driver fatigue by cutting vibration by 40%, adapting to 8 - 10 hours of daily use—meeting the needs of 78% of urban drivers (per automotive usage surveys).
For highway trips (often 300 + km/day), the rack’s 900MPa tensile strength and 1000h salt spray resistance handle stable high - speed steering and resist corrosion from road debris. Its hydraulic seal design (≤0.5ml/100h leakage) maintains performance, critical for safe long - haul travel.
In rough rural or off - road areas with uneven roads, the polyurethane damping sleeve and heavy - duty steel structure absorb shocks. It withstands 500,000 + steering cycles, coping with frequent rough - terrain turns—trusted by 65% of light commercial vehicles in rural regions.
For fleets (delivery vans, light trucks) with 15,000 + monthly km, the rack’s 24 - month/60,000km warranty and 99.8% first - pass yield minimize downtime. Standardized interfaces cut installation time by 30%, aligning with fleet efficiency needs (per fleet management industry data).
