Wheel Disc/Hub: Bore Size 25-100 mm, Diameter 150-800 mm

Component Specifications

Definition

A wheel disc or hub is a precision-engineered rotating component that serves as the central mounting point for blades or vanes in centrifugal wheel assemblies. It transmits rotational energy from the drive shaft to the peripheral elements while maintaining structural integrity under high centrifugal forces. This component ensures balanced rotation, minimizes vibration, and provides the foundation for efficient fluid or material acceleration in centrifugal systems.

Working Principle

The wheel disc/hub operates on rotational dynamics principles, converting input torque into centrifugal force. As the central rotating element, it anchors the blades/vanes and distributes mechanical stress evenly across its structure. During operation, it maintains precise alignment with the drive shaft while withstanding radial and axial loads generated by high-speed rotation and material flow.

Materials

Typically manufactured from forged or cast steel alloys (e.g., AISI 4140, 4340), aluminum alloys (e.g., 6061-T6, 7075-T6), or specialty composites. Material selection depends on operational requirements including strength-to-weight ratio, corrosion resistance, fatigue life, and temperature tolerance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	2-50 kg
Max RPM	3000-15000
Diameter	150-800 mm
Bore Size	25-100 mm
Balance Grade	G2.5 or better
Mounting Holes	4-12 bolt pattern
Surface Finish	Ra 1.6-3.2 μm

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 1940-1, DIN 45665, ISO 21940

Parent Products

This component is used in the following industrial products

Centrifugal Wheel Assembly

A rotating assembly that propels abrasive media at high velocity for surface preparation.

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Engineering Analysis

Risks & Mitigation

Fatigue failure from cyclic loading
Imbalance causing vibration
Corrosion in harsh environments
Bearing surface wear
Thermal stress cracking

FMEA Triads

Trigger: Material fatigue from cyclic stress
Failure: Crack propagation leading to catastrophic failure
Mitigation: Implement regular non-destructive testing (NDT), use fatigue-resistant materials, maintain proper operating speeds

Trigger: Improper balancing during manufacturing or maintenance
Failure: Excessive vibration leading to bearing damage and reduced efficiency
Mitigation: Precision balancing to ISO 1940 standards, regular vibration monitoring, proper installation procedures

Trigger: Corrosive environment exposure
Failure: Material degradation and reduced structural integrity
Mitigation: Use corrosion-resistant materials, apply protective coatings, implement environmental controls

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05 mm for critical dimensions, H7/h6 fit for bore/shaft interface

Test Method

Dynamic balancing per ISO 1940-1, ultrasonic testing for defects, dimensional verification with CMM, material certification per ASTM standards

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

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Manufacturers of Wheel Disc/Hub

Manufacturer profiles associated with Wheel Disc/Hub.

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Frequently Asked Questions

What is the primary function of a wheel disc/hub in centrifugal assemblies?

The wheel disc/hub serves as the central rotating component that transmits torque from the drive shaft to the blades/vanes while supporting radial loads and maintaining structural integrity under centrifugal forces.

How does material selection affect wheel disc/hub performance?

Material selection determines critical performance factors including strength-to-weight ratio, fatigue resistance, corrosion tolerance, and operational temperature range. Steel alloys provide high strength, aluminum offers lightweight solutions, and composites can provide specialized properties.

What maintenance is required for wheel disc/hubs?

Regular inspection for cracks, wear, and corrosion; periodic balancing verification; proper lubrication of mounting surfaces; and torque verification of fasteners according to manufacturer specifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Wheel Disc/Hub