Industry-Verified Manufacturing Data (2026)

Hub/Centerbody

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Hub/Centerbody used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Hub/Centerbody is characterized by the integration of Mounting Flange and Vane Attachment Points. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The central structural component of a swirler that anchors and positions the swirling vanes or passages.

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Product Specifications

Technical details and manufacturing context for Hub/Centerbody

Definition
In a swirler assembly, the hub or centerbody serves as the core structural element around which the swirling mechanism is built. It provides the mounting points and geometric reference for the swirling vanes, channels, or passages that impart rotational motion to fluid flow. This component ensures proper alignment and spacing of swirling elements while withstanding mechanical stresses from fluid dynamics and rotational forces.
Working Principle
The hub/centerbody acts as a stationary or rotating central axis that supports and positions the swirling elements (vanes, channels, or passages). It maintains structural integrity while fluid flows around or through it, enabling controlled swirling motion generation. In rotating designs, it transmits torque; in stationary designs, it provides fixed reference geometry.
Common Materials
Stainless Steel, High-Temperature Alloy, Titanium Alloy
Technical Parameters
  • Diameter of the hub/centerbody at its widest point (mm) Standard Spec
Components / BOM
  • Mounting Flange
    Provides attachment points to connect the hub to other swirler components or the main assembly
    Material: Same as main hub material
  • Vane Attachment Points
    Precise locations where swirling vanes are secured to the hub structure
    Material: Same as main hub material
  • Central Bore
    Hollow center for weight reduction, fluid passage, or shaft accommodation
    Material: Same as main hub material
Engineering Reasoning
0-15 MPa at 20-650°C
Yield strength exceeded at 450 MPa (ASTM A479 316L) or thermal stress cracking at ΔT>300°C
Design Rationale: High-cycle fatigue from vortex-induced vibrations at Strouhal numbers >0.21 combined with thermal gradient stresses exceeding 350 MPa
Risk Mitigation (FMEA)
Trigger Resonant excitation at 120-180 Hz matching vane passing frequency
Mode: Crack initiation at vane attachment fillets (R<1.5mm)
Strategy: Asymmetric vane spacing (7-9-11 pattern) and increased fillet radius to 3.0mm
Trigger Thermal ratcheting from 200-650°C thermal cycles exceeding 10^4 cycles
Mode: Progressive ovalization exceeding 0.8mm diametral deformation
Strategy: Controlled expansion design with 0.5mm radial clearance and Inconel 718 thermal barrier coating

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hub/Centerbody.

Swirler Hub Center Body high temperature alloy swirler centerbody stainless steel hub for swirling vanes titanium alloy central bore component machinery manufacturing swirler anchor precision vane attachment points hub

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Swirler
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 100 bar
flow rate: 0.5 to 50 m³/h
temperature: -50°C to 650°C
slurry concentration: Up to 30% solids by weight
Media Compatibility
✓ Natural gas/air mixtures ✓ Process gases (CO2, N2, O2) ✓ Water-based slurries
Unsuitable: Highly corrosive acids (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Swirler inlet diameter (mm)
  • Required swirl number/angle
  • Maximum allowable pressure drop (bar)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic stress from rotational forces and vibration, often exacerbated by material defects or improper heat treatment.
Corrosion pitting
Cause: Exposure to corrosive fluids or environments, combined with galvanic corrosion from dissimilar metals in assembly.
Maintenance Indicators
  • Unusual vibration or imbalance during operation
  • Visible cracks, discoloration, or material loss on the hub surface
Engineering Tips
  • Implement regular non-destructive testing (e.g., dye penetrant or magnetic particle inspection) to detect early-stage cracks.
  • Apply protective coatings or select corrosion-resistant alloys suited to the specific operating environment.

Compliance & Manufacturing Standards

Reference Standards
ISO 2768-1:1989 (General tolerances for linear and angular dimensions) ANSI B4.1-1967 (Preferred Limits and Fits for Cylindrical Parts) DIN 7182-1:2001 (Tolerances for hubs and bores)
Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Hub concentricity: 0.05mm TIR
Quality Inspection
  • Dimensional verification with CMM (Coordinate Measuring Machine)
  • Magnetic Particle Inspection for surface cracks

Factories Producing Hub/Centerbody

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

T Technical Director from Australia Jan 26, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Singapore Jan 23, 2026
★★★★☆
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Hub/Centerbody meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Germany Jan 20, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Hub/Centerbody arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for Hub/Centerbody from India (1h ago).

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Frequently Asked Questions

What materials are recommended for high-temperature applications?

For high-temperature environments, high-temperature alloys like Inconel or Hastelloy are recommended due to their excellent thermal resistance and strength retention at elevated temperatures.

How does the hub/centerbody ensure proper vane positioning?

The hub features precisely machined vane attachment points that anchor and align swirling vanes or passages, maintaining consistent spacing and angles for optimal fluid or gas flow dynamics.

What are the key specifications to consider when selecting a hub/centerbody?

Key specifications include material grade, central bore diameter, mounting flange dimensions, vane attachment point tolerances, operating temperature range, and corrosion resistance requirements for your specific application.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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