INDUSTRY COMPONENT

Balance Weights

Precision weights used to balance rotating assemblies in X-ray tube rotors for smooth operation and reduced vibration.

Component Specifications

Definition
Balance weights are precision-engineered components specifically designed to counterbalance mass distribution in rotating assemblies. In X-ray tube rotor assemblies, these weights are strategically placed to achieve perfect rotational balance, minimizing vibration, reducing bearing wear, and ensuring stable operation at high rotational speeds required for medical imaging.
Working Principle
Works on the principle of static and dynamic balancing. Mass is added or adjusted at specific radial positions to offset uneven mass distribution in the rotor assembly, ensuring the center of mass aligns with the axis of rotation to eliminate centrifugal forces that cause vibration.
Materials
High-density materials such as tungsten alloys, lead alloys, or stainless steel, often with non-corrosive coatings. Material selection prioritizes density, machinability, and compatibility with vacuum or high-temperature environments.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Density≥16 g/cm³ (for tungsten alloys)
Surface FinishRa ≤ 1.6 μm
Weight Tolerance±0.1g
Corrosion ResistancePassivated or coated per ASTM A967
Operating Temperature Range-20°C to 150°C

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, ISO 21940-11, DIN ISO 1940-1

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Imbalance causing excessive vibration
  • Material fatigue or loosening over time
  • Incorrect weight placement during maintenance
  • Corrosion in harsh environments
FMEA Triads
Trigger: Improper weight calculation or installation
Failure: Rotational imbalance leading to vibration
Mitigation: Use precision balancing machines and follow ISO 1940-1 standards for balance quality grades.
Trigger: Material degradation or corrosion
Failure: Weight mass change or structural failure
Mitigation: Select corrosion-resistant materials and apply protective coatings; implement regular inspection schedules.
Trigger: Loosening due to thermal cycling or vibration
Failure: Weight displacement causing sudden imbalance
Mitigation: Use thread-locking compounds, proper torque specifications, and design with retention features.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Balance quality grade G2.5 per ISO 1940-1 for medical imaging equipment
Test Method
Dynamic balancing tested on precision balancing machines with vibration analysis; compliance with IEC 60601-1 for medical electrical equipment safety.

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
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Balance Weights

Manufacturer profiles associated with Balance Weights.

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Frequently Asked Questions

Why are balance weights critical in X-ray tube rotors?

They ensure smooth rotation at high speeds (typically 3,000-10,000 RPM), preventing vibration that can degrade image quality, cause mechanical failure, or reduce tube lifespan.

Can balance weights be adjusted after installation?

Yes, they are often designed with threaded or slotted configurations for fine-tuning during dynamic balancing procedures on balancing machines.

What happens if balance weights fail or are incorrect?

Excessive vibration occurs, leading to bearing wear, anode disc damage, reduced X-ray tube life, and potentially blurred or artifact-ridden medical images.

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.

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