Steering Rack Components

Name: Steering Rack Components | Steering Linkages & Housing Units - Frigate
Price: 249.00 USD
Availability: InStock

Steering rack components are subjected to highly dynamic and cyclic loading due to steering inputs, road irregularities, and vibrations. These variable stress amplitudes demand materials with high tensile strength and excellent fatigue resistance to maintain performance over time.

Material Specification

Induction-Hardened Steel (SAE 1552/SAE 4140) / Billet Aluminum (for housing)

Overall Length

600–1200 mm (±0.5 mm; vehicle platform-specific)

Diameter

Main Body – 25–40 mm; Bearing Journals – 20–30 mm (±0.02 mm)

Gear Teeth Count & Profile

20–40 teeth; Involute profile (20° pressure angle, 1.5–3.0 module)

Hardness & Case Depth

Teeth – 55–60 HRC (1.0–1.8 mm case depth); Bearing Areas – 50–55 HRC

Product Description

To enhance durability, components undergo precision-controlled heat treatment processes like carburizing and quenching. These treatments create a hardened surface layer that significantly improves resistance to crack initiation and propagation, ensuring long-term reliability under continuous mechanical stress.

Surface Finish

Teeth – 0.4–0.8 μm Ra; Bearing Journals – 0.2–0.4 μm Ra (super-finished)

Runout/Straightness

≤0.05 mm/m (full length); ≤0.02 mm TIR (bearing journals)

Tie Rod End Thread Specification

M12×1.25 / M14×1.5 (RH/LH threads); ISO 898-1 Class 8.8/10.9

Dimensional Tolerances

Tooth pitch error – ≤0.015 mm; Concentricity – ≤0.03 mm (pinion interface)

Certification Standards

ISO 9001:2015, IATF 16949, SAE J1133 (steering system standards)

Technical Advantages

Achieving strict dimensional tolerances is critical for the meshing between the rack teeth and pinion gear, directly affecting steering precision and feedback. Advanced CNC machining combined with superfinishing processes produces surface finishes typically below Ra 0.4 microns, reducing friction and wear at contact interfaces. Geometric accuracy on tooth profiles is maintained within micrometer-level deviations, reducing backlash and enabling consistent torque transmission. This precision manufacturing reduces vibration and noise while maintaining stable steering performance over the component’s lifecycle.

Steering rack components are exposed to environmental factors, including moisture, de-icing salts, and contaminants that accelerate corrosion. Utilization of corrosion-resistant alloys such as alloyed steels with chromium or molybdenum, coupled with multilayer surface treatments like phosphate conversion and thin dense coatings (PVD/CVD), offers enhanced chemical and electrochemical stability. These protective layers also improve surface hardness, reducing abrasive wear from particulate matter, and extend functional life without compromising dimensional integrity.

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Industry Applications

Automotive Passenger Vehicles

Precisely engineered for reliable steering control under variable loads, ensuring consistent torque transfer and minimal backlash for driver safety and comfort.

Commercial Trucks and Buses

Designed to withstand heavy-duty steering loads and high mileage, maintaining fatigue resistance and dimensional stability during long operational cycles.

Off-Road and Agricultural Machinery

Built to resist contamination and impact loads, ensuring steering performance in harsh, unpaved, and highly abrasive environments with high reliability.

Construction Equipment

Fabricated with enhanced wear resistance and corrosion protection for consistent operation under high mechanical stress and exposure to hydraulic fluids.

Electric and Hybrid Vehicles

Optimized for integration with electronic power steering systems, requiring precise geometry and electromagnetic compatibility with sensor and actuator components.

Military and Defense Vehicles

Manufactured to meet stringent durability and reliability standards, capable of operating under extreme environmental conditions and high dynamic loads.

Weight and Material Optimization for Performance Efficiency

Optimization focuses on balancing mechanical strength with reduced mass to meet automotive efficiency targets. Application of finite element analysis (FEA) guides material removal in low-stress areas without sacrificing load-bearing capacity. High-performance alloy steels and thermomechanically treated materials provide excellent strength-to-weight ratios.

Compatibility with electric power-assisted steering (EPAS) and steer-by-wire systems requires components with consistent mechanical properties and tight geometric controls. Materials are selected to minimize magnetic interference for sensor accuracy and to endure elevated operating temperatures generated by electronic actuators.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure fatigue resistance in steering rack components?

Frigate uses controlled heat treatment processes like carburizing and quenching to develop a hardened surface layer on rack teeth. This surface resists crack initiation under cyclic loads. Material selection focuses on high-strength alloy steels with proven fatigue limits. Additionally, Frigate conducts rigorous testing to verify component durability over millions of load cycles.

What manufacturing methods does Frigate use to maintain tight dimensional tolerances?

Frigate employs CNC machining combined with precision grinding and superfinishing techniques. These processes achieve micrometer-level accuracy on rack tooth profiles. Strict in-process inspections ensure minimal deviation to reduce backlash. This precision manufacturing supports consistent steering feel and reliability.

How does Frigate address corrosion resistance in steering rack components?

Frigate selects alloy steels with enhanced corrosion resistance properties. Surface treatments such as phosphate coatings and thin-film PVD layers are applied to protect against moisture and salt exposure. These coatings improve chemical stability without compromising dimensional accuracy. This ensures long-term performance even in harsh environments.

How does Frigate optimize steering rack components design for weight and strength?

Frigate utilizes finite element analysis (FEA) to evaluate stress distribution and identify areas for material reduction. Components are engineered with optimized cross-sections to maintain structural integrity. Advanced metallurgy allows the use of high-strength steels for weight savings. This approach balances durability with efficiency in vehicle dynamics.

How does Frigate ensure compatibility of steering rack components with electronic power steering systems?

Frigate manufactures components with precise geometric controls and material selections to avoid electromagnetic interference. Surface finishes are engineered to support lubrication retention and reduce mechanical hysteresis. Rack designs accommodate sensor placements and actuator interfaces for seamless integration. This enables reliable operation in advanced steering technologies.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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