INDUSTRY COMPONENT

Hub / Center Plate

Central mounting plate connecting impeller blades to drive shaft in centrifugal machinery

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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.

impeller hub center plate rotating machinery components centrifugal machine parts drive shaft coupling industrial impeller assembly Hub / Center Plate Hub / Center Plate in Machinery and Equipment Manufacturing

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.

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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

Buyer Feedback

★★★★☆ 4.6 / 5.0 (15 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Hub / Center Plate meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Hub / Center Plate arrived with full certification."

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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.

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