Structured Manufacturing Data (2026)

X-Ray Tube Rotor Assembly

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard X-Ray Tube Rotor Assembly used in the Manufacture of Irradiation, Electromedical and Electrotherapeutic Equipment sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical X-Ray Tube Rotor Assembly is characterized by the integration of Anode Target Disc and Rotor Shaft. In industrial production environments, manufacturers listed on CNFX commonly emphasize Molybdenum alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

High-speed rotating anode assembly for medical X-ray generation.

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Product Specifications

Technical details and manufacturing context for X-Ray Tube Rotor Assembly

Definition
The X-ray tube rotor assembly is a critical rotating component within medical X-ray tubes used in diagnostic imaging equipment. It consists of a precisely balanced anode target mounted on a high-speed rotor shaft, which rotates to distribute heat during X-ray generation. This component enables higher power output and longer tube life by preventing localized overheating of the anode material. Manufacturers supply these assemblies to medical equipment OEMs for integration into X-ray tubes used in radiography, fluoroscopy, and CT scanning systems.
Working Principle
An electric motor drives the rotor assembly at high speeds (typically 3,000-10,000 RPM), causing the anode target to rotate. When electrons strike the rotating anode surface, X-rays are produced while centrifugal force helps dissipate heat across the entire target area rather than concentrating it at a single spot.
Common Materials
Molybdenum alloy, Tungsten-rhenium alloy, Copper, Stainless steel
Technical Parameters
  • Diameter of the rotating anode target (mm) Per Request
  • Maximum operational rotational speed (RPM) Per Request
Components / BOM
  • Anode Target Disc Part
    X-ray generation surface that electrons strike
    Material: Tungsten-rhenium alloy
  • Rotor Shaft Part
    Central rotating element connecting anode to bearings
    Material: Molybdenum alloy
  • Bearings Part
    Support and enable smooth high-speed rotation
    Material: Stainless steel with ceramic balls
  • Stator Windings Part
    Stationary electromagnetic coils that drive rotation
    Material: Copper wire with insulation
  • Balance Weights Optional Part
    Precision weights for dynamic balancing
    Material: Tungsten alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for X-Ray Tube Rotor Assembly.

Rotating anode assembly X-ray tube rotor Anode rotor assembly medical X-ray tube rotor assembly high-speed rotating anode assembly molybdenum alloy X-ray rotor X-ray tube bearing replacement parts tungsten-rhenium anode target disc

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar absolute
other spec: Maximum rotational speed: 10,000 RPM, Vacuum level: <10^-5 mbar, Vibration limit: <2G at 50-2000 Hz
temperature: 20°C to 80°C (operating), -10°C to 100°C (storage)
Media Compatibility
✓ Medical-grade vacuum environments ✓ High-purity copper heat sinks ✓ Molybdenum/graphite anode materials
Unsuitable: High humidity or corrosive gas environments (causes oxidation/arcing)
Sizing Data Required
  • Required X-ray power output (kW)
  • Anode target diameter and angle
  • Cooling system capacity (heat dissipation rate)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing degradation
Cause: Lubricant breakdown due to high-temperature operation, leading to increased friction, wear, and eventual bearing seizure or excessive vibration.
Rotor imbalance or wobble
Cause: Uneven thermal expansion, material fatigue, or foreign particle ingress causing imbalance, leading to excessive vibration, noise, and potential catastrophic failure.
Maintenance Indicators
  • Unusual high-pitched whining or grinding noise during rotation, indicating bearing wear or imbalance.
  • Excessive vibration felt through the housing or visible wobble of the assembly, signaling imminent mechanical failure.
Engineering Tips
  • Implement a strict preventive maintenance schedule for lubrication replacement using high-temperature, vacuum-compatible lubricants specified by the manufacturer.
  • Ensure proper cooling system operation and monitor operating temperatures to prevent thermal stress and lubricant degradation.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems IEC 60601-2-44 Medical electrical equipment - Part 2-44: Particular requirements for the basic safety and essential performance of X-ray equipment for computed tomography ASTM E1441-19 Standard Guide for Computed Tomography (CT) Imaging
Manufacturing Precision
  • Rotor shaft concentricity: ±0.005 mm
  • Bearing clearance: 0.01-0.03 mm
Quality Inspection
  • High-speed rotational balance test (to 10,000 RPM)
  • X-ray emission stability and uniformity test

Factories Producing X-Ray Tube Rotor Assembly

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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.

Frequently Asked Questions

What materials are used in this X-ray tube rotor assembly?

This assembly uses molybdenum alloy and tungsten-rhenium alloy for the anode target, copper for heat dissipation, and stainless steel for structural components to ensure durability and optimal thermal management.

What is the maximum rotation speed of this rotor assembly?

The maximum rotation speed is specified in RPM (revolutions per minute), designed to meet the high-speed requirements of modern medical X-ray imaging systems while maintaining stability and precision.

How does the bearing type affect X-ray tube performance?

The bearing type directly impacts rotation stability, noise levels, and longevity. Precision bearings in this assembly ensure smooth high-speed operation, reducing vibration and extending the tube's service life.

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 basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Manufacture of Irradiation, Electromedical and Electrotherapeutic Equipment.

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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