INDUSTRY COMPONENT

Centrifugal Weights

Centrifugal weights are rotating mass components in mechanical governors that regulate engine speed through centrifugal force.

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Component Specifications

Definition
Centrifugal weights are precision-engineered rotating masses mounted on a governor shaft that respond to rotational speed changes. As speed increases, centrifugal force causes these weights to move outward, mechanically adjusting fuel supply or throttle position to maintain constant speed. They are critical for stable operation in internal combustion engines, turbines, and rotating machinery.
Working Principle
Centrifugal weights operate on the principle of centrifugal force: F = mω²r, where mass (m) rotates at angular velocity (ω) at radius (r). As rotational speed increases, centrifugal force moves weights outward against spring tension, activating linkage mechanisms to reduce fuel/air supply. This creates a negative feedback loop that stabilizes rotational speed.
Materials
Typically forged steel (AISI 4140/4340), stainless steel (316/304), or high-density alloys (tungsten composites for compact designs). Surface treatments include hard chrome plating, nitriding, or ceramic coatings for wear resistance.
Technical Parameters
  • Tolerance ±0.5g mass balance
  • Mass Range 50-500g per weight
  • Surface Finish Ra 0.8μm max
  • Operating Speed 500-10,000 RPM
  • Temperature Range -40°C to 200°C
Standards
ISO 1940-1, DIN 45665, ISO 10816

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Centrifugal Weights.

centrifugal weight governor component speed regulation rotating mass mechanical governor engine governor centrifugal force vibration control Centrifugal Weights Centrifugal Weights in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Governor (Mechanical)

A mechanical device within a fuel injection pump that regulates engine speed by controlling fuel delivery based on centrifugal force.

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Engineering Analysis

Risks & Mitigation
  • Imbalance causing vibration
  • Wear at pivot points
  • Fatigue failure at high cycles
  • Corrosion in harsh environments
  • Spring linkage failure
FMEA Triads
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to weight separation
Mitigation: Regular inspection for surface cracks, use of fatigue-resistant alloys, stress relief heat treatment
Trigger: Wear at pivot bushings
Failure: Increased clearance causing governor hysteresis
Mitigation: Hardened bearing surfaces, lubrication ports, wear-resistant coatings
Trigger: Corrosion in marine/chemical environments
Failure: Mass change affecting balance and response
Mitigation: Stainless steel construction, protective coatings, environmental sealing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5% mass variation within set, ±0.1mm dimensional tolerance
Test Method
Dynamic balancing per ISO 1940-1, centrifugal force testing at 125% rated speed, wear testing per ASTM G99

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.

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Frequently Asked Questions

What is the primary function of centrifugal weights?

To convert rotational speed changes into mechanical movement through centrifugal force, enabling automatic speed regulation in engines and rotating machinery.

How are centrifugal weights balanced?

Through dynamic balancing to ISO 1940 standards, ensuring mass distribution prevents vibration at operating speeds, typically requiring ±0.5g precision.

Can centrifugal weights be replaced individually?

No, they must be replaced as matched sets to maintain balance and performance, as even small mass variations cause governor instability.

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.

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