In the precision rotating gantries and multi-leaf collimators (MLC) of high-end tumor radiotherapy equipment (such as medical linear accelerators and proton heavy-ion therapy systems), anti-magnetic medical bearings play a core role in ensuring precise irradiation and absolute patient safety. Radiotherapy equipment generates extremely strong electromagnetic fields during operation. Traditional ferromagnetic bearings are highly susceptible to magnetization in such extreme environments, leading to the adsorption and jamming of internal rolling elements, grease failure, and even severe mechanical failures. Equipment manufacturers urgently need anti-magnetic bearings customized for radiotherapy scenarios, featuring ultimate anti-interference and high-stability characteristics.

Facing the stringent requirements of radiotherapy equipment for "zero magnetic hysteresis" and "micron-level precision," support systems must not only possess extremely high mechanical rigidity but also achieve complete non-magnetization and dimensional stability in strong magnetic field environments. The micro-deformation and magnetic hysteresis effects generated by traditional bearings in strong magnetic fields can directly cause the radiation beam to deviate from the target area, resulting in severe medical accidents. The market urgently demands a radiotherapy equipment bearing solution that can break through the electromagnetic interference bottleneck, achieving absolute anti-magnetism and high stability, providing solid protection for various high-end tumor treatment equipment.

NMT Anti-Magnetic Medical Linear Accelerator Bearings are born to conquer the extreme transmission challenges of radiotherapy equipment. This series completely abandons traditional ferromagnetic materials and adopts special austenitic stainless steel and high-performance non-magnetic alloys, achieving 100% non-magnetization from the material root, completely eliminating magnetic hysteresis effects and eddy current heating. Combined with a precision anti-magnetic structure design, NMT bearings still maintain extremely low friction torque and perfect rotational accuracy in strong magnetic fields, ensuring micron-level positioning of the multi-leaf collimator during high-speed dynamic adjustment, and guaranteeing the precision and safety of tumor radiotherapy.

In precision manufacturing and quality control, NMT enforces medical-grade stringent standards for every component of its anti-magnetic bearings. All components are assembled in a constant-temperature cleanroom and undergo 100% magnetic permeability testing, rotational accuracy, and high-stability friction torque testing. Any products with minute defects are eliminated. Through special non-magnetic material selection, anti-magnetic structure strengthening, and precision assembly processes, NMT comprehensively improves the anti-magnetic interference capability of the bearings, ensuring that the bearings always maintain stable performance and precise dimensions in extreme magnetic fields, guaranteeing high consistency and high reliability of batch products, and completely eliminating the operational hazards of radiotherapy equipment.

With rich specifications, these bearings are widely used in medical linear accelerators, proton heavy-ion therapy systems, multi-leaf collimators (MLC), high-precision treatment beds, and radiotherapy equipment rotating gantries, satisfying the supporting needs of various anti-magnetic, anti-interference, and high-stability transmission nodes.

Core Product Advantages

Special austenitic stainless steel and non-magnetic alloy materials achieve 100% non-magnetization from the root, completely eliminating magnetic hysteresis effects and eddy current heating;

Precision anti-magnetic structure design maintains extremely low friction torque and perfect rotational accuracy in strong magnetic fields, ensuring micron-level positioning of the multi-leaf collimator;

Excellent anti-magnetic interference and high-stability performance ensure precise irradiation of the radiation beam to the target area, avoiding severe medical accidents caused by magnetic deformation;

Full-process quality control and 100% magnetic permeability full inspection ensure precise dimensions and stable performance of each bearing in extreme magnetic fields;

Special non-magnetic materials and precise clearance control effectively resist micro-stresses caused by strong magnetic fields, ensuring ultra-long service life of equipment;

Ultimate dimensional stability and wear resistance maintain ultra-low precision drift under high-speed rotation and high-frequency dynamic adjustment conditions of radiotherapy gantries;

Full life-cycle high-reliability design significantly reduces O&M costs and downtime frequency of radiotherapy equipment, ensuring efficient and safe tumor treatment;

Perfect non-magnetic and high-cleanliness characteristics meet the stringent requirements of high-end radiotherapy equipment for electromagnetic compatibility and dust-free environments.

Typical Application Scenarios

Medical linear accelerators; Proton heavy-ion therapy systems; Multi-leaf collimators (MLC); High-precision radiotherapy treatment beds; Radiotherapy equipment rotating gantries; MRI-guided radiotherapy systems; High-end tumor radiotherapy equipment.

Precision Quality Assurance

NMT Anti-Magnetic Medical Linear Accelerator Bearings use special austenitic stainless steel and non-magnetic alloys as core raw materials, subject to strict material and magnetic permeability inspections upon incoming. After precision turning, rings undergo special heat treatment and ultra-precision grinding and polishing, with strict control over raceway surface roughness and micro-geometric accuracy. Precision rolling elements are fully automatically sorted for size, roundness, and weight to ensure consistent load distribution and friction torque within the same bearing set. All components are assembled in a constant-temperature dust-free workshop. Finished products undergo 100% magnetic permeability testing, rotational accuracy, and high-stability friction torque testing. Unqualified products are completely rejected, ensuring the ultimate performance of batch products under extreme conditions such as radiotherapy equipment, providing reliable support solutions for high-end precision equipment.

Product Series

Anti-magnetic deep groove ball bearings, anti-magnetic angular contact ball bearings, anti-magnetic crossed roller bearings; Selection is based on installation space, anti-magnetic levels, precision requirements, and high stability.

Brand Strength

NMT is deeply engaged in the R&D and manufacturing of anti-magnetic medical linear accelerator bearings. Targeting industry pain points in radiotherapy equipment scenarios—where strong magnetic fields cause bearing magnetization and jamming, magnetic deformation affects radiotherapy precision, and electromagnetic interference is severe—NMT continuously optimizes special non-magnetic materials, anti-magnetic structural designs, and high-cleanliness assembly processes. This effectively solves fatal defects of traditional bearings in radiotherapy equipment such as easy magnetization, eddy current heating, and precision drift. It significantly enhances the operational safety and treatment precision of radiotherapy equipment, helping high-end medical manufacturing enterprises break through precision transmission bottlenecks and seize the global high-end radiotherapy equipment intelligent manufacturing market.