Hub Flange: Load Capacity 800-1500 kg per stud

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 4107, DIN 743, SAE J429

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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Hub Flange

Manufacturer profiles associated with Hub Flange.

Sourcing Hub Flange from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Brake Disc (Rotor)

A rotating disc in disc brake systems that creates friction with brake pads to slow or stop vehicle motion.

Main Bearing Journals

Main bearing journals are precision-machined cylindrical surfaces on a crankshaft that rotate within main bearings to support rotational motion in internal combustion engines.

Surround

Structural component that encloses and protects suspension system elements while providing mounting points and structural integrity.

Brake Disc/Rotor

A rotating disc component in disc brake systems that converts kinetic energy into thermal energy through friction to slow or stop vehicle motion.

Frequently Asked Questions

What is the primary function of a hub flange?