Precision Motion for Medical Imaging: High-Performance CT Scanner Slewing Bearings
1. Product Introduction
In the high-stakes field of medical diagnostics, precision is non-negotiable. At ZZ Bearing, we understand that the clarity of a CT scan relies heavily on the stability and accuracy of the gantry's rotation. Our CT Scanner Slewing Bearings (also known as转盘 bearings or rotary table bearings) are engineered specifically for high-speed, low-vibration medical applications.
Unlike standard industrial slewing rings, our medical-grade bearings are designed to support the heavy rotating gantry while maintaining micron-level rotational accuracy. This ensures that X-ray detectors and sources remain perfectly aligned during high-speed helical scanning, delivering crisp, artifact-free images essential for accurate diagnosis.
2. Performance & Quality Highlights
Our engineering team focuses on three critical pillars for medical slewing bearings:
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Ultra-High Rotational Accuracy: We utilize precision grinding processes to achieve P4 and P5 precision classes. This minimizes runout, ensuring the CT gantry rotates smoothly without wobble, which is critical for image reconstruction.
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Low Friction & Noise: Utilizing advanced cage designs and high-quality lubricants, our bearings reduce friction torque. This allows for silent operation—vital for patient comfort—and reduces the load on the drive motor.
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Lightweight & Compact Design: By optimizing the cross-section of the bearing rings, we help medical device manufacturers reduce the overall weight of the gantry system without compromising load capacity, allowing for faster acceleration and deceleration.
3. Technical Specifications
We offer both standard and custom-designed slewing bearings for CT scanners. Below are typical specifications for our medical series:
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Parameter
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Specification Details
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Bearing Type
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Four-point contact ball bearing / Crossed roller bearing
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Precision Grade
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P4, P5 (ISO Standard)
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Bore Diameter
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500mm – 1200mm (Customizable)
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Material
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42CrMo4 / 50Mn (High Hardenability Steel)
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Cage Material
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Brass (Solid) or Engineering Plastic (PA66)
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Sealing
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Low-friction rubber seals (IP54/IP65 options)
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Gear Option
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External gear, Internal gear, or Gearless
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Lubrication
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Medical-grade grease, low noise formulation
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4. Certifications & Standards
Quality assurance is the backbone of ZZ Bearing's manufacturing process. We adhere to strict international standards to ensure compatibility with global medical device requirements:
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ISO 9001:2015: Certified Quality Management System.
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ISO 492: Dimensional and geometrical tolerances for rolling bearings.
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JB/T 2300-2011: Chinese industry standard for slewing bearings (compliant with DIN/ISO equivalents).
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Material Traceability: Full EN 10204 3.1 material certificates provided for all steel batches.
5. Our Services
As a direct manufacturer, ZZ Bearing offers more than just a product:
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OEM/ODM Solutions: We can reverse engineer or design new slewing bearings based on your specific gantry dimensions and load requirements.
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Rigorous Testing: Every unit undergoes strict inspection using Coordinate Measuring Machines (CMM) and specialized runout testing equipment before shipment.
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Global Logistics: With experience exporting to over 50 countries, we ensure secure packaging and timely delivery via air or sea freight.
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Technical Support: Our engineers are available to assist with mounting designs, fit tolerances, and lubrication selection.
6. Applications
While optimized for Computed Tomography (CT) scanners, our high-precision slewing bearings are also suitable for:
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MRI Machines: Rotating patient tables or internal components.
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Radiation Therapy Equipment: Linear accelerators (LINAC) requiring precise beam alignment.
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PET-CT Scanners: Combined imaging systems.
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High-Precision Radar Antennas: Where stability mirrors medical requirements.
7. Frequently Asked Questions (FAQ)
Q: Can you manufacture a replacement for a Rothe Erde or Kaydon CT bearing?
A: Yes. We specialize in manufacturing interchangeably compatible bearings. Please provide the drawing or part number, and we can match the dimensions and performance specs.
Q: What is the lead time for a medical-grade slewing bearing?
A: For standard samples, the lead time is typically 15-20 days. For bulk orders or custom designs, it ranges from 30-45 days depending on complexity.
Q: Do you provide installation guidance?
A: Absolutely. We provide detailed technical manuals regarding mounting bolt torque, gear backlash adjustment, and lubrication intervals to ensure optimal performance.
Contact ZZ Bearing Today
Upgrade your medical imaging systems with bearings built for precision. Contact us now for a quote or technical consultation.
