Can I contact factories directly on CNFX?

CNFX is an open directory. Each factory profile provides direct contact information.

Hub / Center Plate Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The hub or center plate is a critical rotating component in impeller/roller cell machinery that serves as the central structural element connecting multiple impeller blades or rollers to the drive shaft. It provides mechanical stability, ensures proper blade alignment, and transmits torque from the drive system to the working elements while maintaining rotational balance under operational loads.

Working Principle

The hub functions as a rigid central mounting platform that converts rotational energy from the drive shaft into centrifugal force through attached blades/rollers. It maintains precise angular positioning of multiple working elements while distributing mechanical stresses evenly across the assembly during high-speed rotation.

Materials

Typically forged or machined from high-strength alloys: AISI 4140 steel, 17-4PH stainless steel, or aluminum 7075-T6 for lightweight applications. Surface treatments include hard anodizing (aluminum) or nitriding (steel) for wear resistance.

Technical Parameters

Weight 2-50 kg
Max RPM 3000-10000
Diameter 150-500 mm
Bore Size 25-100 mm
Balance Grade G2.5 per ISO 1940
Mounting Holes 6-24 bolt pattern
Runout Tolerance ≤0.05 mm

Standards

ISO 1940-1, DIN 45665, ISO 21940-11

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hub / Center Plate.

Parent Products

This component is used in the following industrial products

Impeller/Roller Cell

A key rotating component within a fuel pump that creates pressure and moves fuel.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue cracking at stress concentration points
Imbalance causing vibration damage
Bore wear leading to shaft misalignment
Corrosion in harsh environments

FMEA Triads

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to catastrophic fracture
Mitigation: Implement regular non-destructive testing (ultrasonic/magnetic particle), use fatigue-resistant alloys, maintain proper lubrication

Trigger: Improper installation torque
Failure: Bolt loosening and imbalance
Mitigation: Use calibrated torque wrenches, follow manufacturer's torque sequence, apply thread-locking compounds

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.025 mm concentricity, ±0.1° angular positioning

Test Method

Coordinate measuring machine (CMM) verification, dynamic balancing per ISO 1940, ultrasonic thickness testing

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

Machine Frame

The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.

pH Sensor Assembly

Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications

Load Cell Assembly

Precision load cell assembly for automated powder dispensing systems

Dust Collection Port

A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.

Frequently Asked Questions

What is the primary function of a hub/center plate in impeller machinery?

It serves as the central mounting structure that connects impeller blades to the drive shaft while maintaining rotational balance and precise blade positioning.

How often should hub assemblies be inspected for wear?

Regular visual inspections every 500 operating hours, with dimensional checks and balance verification during scheduled maintenance every 2000-3000 hours.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Hub / Center Plate