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Hub Flange Component – Motor Vehicle Manufacturing

Q: What is the primary function of a hub flange?

To securely connect the wheel to the axle while maintaining precise alignment and distributing mechanical loads.

Q: Can hub flanges be interchanged between vehicle models?

No, they are model-specific due to variations in bolt patterns, dimensions, and load requirements.

Q: What are common signs of hub flange failure?

Vibration during braking, uneven tire wear, loose wheel feel, or visible cracks around stud holes.

Component Specifications

Definition

The hub flange is a critical rotating component in wheel hub assemblies that provides a mounting surface for wheel studs or bolts, facilitates connection to the axle shaft or brake rotor, and ensures proper alignment and load distribution. It transmits torque from the axle to the wheel while withstanding radial, axial, and bending forces during vehicle operation.

Working Principle

The hub flange operates by creating a rigid interface between the wheel hub and connected components. It uses precisely positioned studs or bolt holes to secure the wheel, while its machined surfaces maintain concentricity with the axle. During rotation, it distributes vehicular loads evenly and provides a sealing surface for bearings.

Materials

Typically forged or cast steel (e.g., SAE 1045, AISI 4140), sometimes alloy steel or aluminum for lightweight applications. Heat-treated to HRC 28-35 for strength. Surface treatments may include zinc plating or phosphate coating for corrosion resistance.

Technical Parameters

Load Capacity 800-1500 kg per stud
Flange Thickness 15-25 mm
Runout Tolerance <0.05 mm
Stud Thread Size M12x1.5 to M14x1.5
Bolt Circle Diameter 100-150 mm

Standards

ISO 4107, DIN 743, SAE J429

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hub Flange.

Parent Products

This component is used in the following industrial products

Wheel Hub

The central rotating component of a drive wheel that connects to the axle and supports the wheel rim.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue cracking from cyclic loads
Corrosion in stud threads
Improper torque causing bolt failure
Runout exceeding tolerance leading to vibration

FMEA Triads

Trigger: Over-torquing during installation
Failure: Stud hole deformation or thread stripping
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications

Trigger: Material fatigue from repeated stress cycles
Failure: Crack propagation from stud holes
Mitigation: Regular inspection for cracks and use of fatigue-resistant materials

Trigger: Corrosive environments
Failure: Thread seizure or reduced clamping force
Mitigation: Apply anti-seize compound and use corrosion-resistant coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.1 mm for bolt circle diameter, ±0.05 mm for runout

Test Method

Dimensional verification with CMM, torque-to-yield testing, salt spray corrosion testing per ASTM B117

Buyer Feedback

★★★★☆ 4.8 / 5.0 (13 reviews)

"Found 39+ suppliers for Hub Flange on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Hub Flange is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Motor Vehicle Manufacturing environments. No issues with the Hub Flange so far."

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Frequently Asked Questions

What is the primary function of a hub flange?