10. aug. 2026

Customised gearbox solutions for advanced X-ray systems

For more than 40 years, NRT X-RAY and BJ-Gear have worked together to develop reliable gearbox solutions for advanced medical X-ray equipment. The collaboration began when NRT needed a gearbox capable of meeting the demanding requirements of medical equipment. Together, the two companies developed BJ-Gear’s first gearbox specifically for a medical application. Since then, the partnership has developed considerably. Today, BJ-Gear supplies customised gearboxes for several movements in NRT’s X-ray systems, including solutions for patient table and telescope positioning. For the Celex X-ray system, different BJ-Gear gearbox configurations have been adapted specifically to NRT’s requirements, combining high precision, low backlash and reliable performance with application-specific mechanical designs.

Benefits

High precision and low backlash

The gearboxes provide the precise and controlled movements required in advanced X-ray equipment, with a strong focus on accuracy, low backlash and consistent performance.

Customised to the application

Gearbox configurations are adapted to NRT’s specific requirements with solutions such as special side flanges, increased gear ratios, extended or dual output shafts and complete gearmotor assemblies.

Long-term technical partnership

More than four decades of collaboration provide a strong foundation for solving technical challenges quickly and developing gearbox solutions that support the requirements of NRT’s medical equipment.

Company profile

Company profile

NRT X-RAY is a Danish manufacturer of advanced X-ray systems for hospitals and healthcare providers worldwide.

The company develops and manufactures specialised medical imaging equipment, including X-ray systems for applications that require precise and controlled positioning. NRT combines in-house development and production with specialised technology to compete in the international medical imaging market.

Problem Statement

Medical X-ray equipment places demanding requirements on the components responsible for positioning and movement. Gearboxes must provide precise and repeatable motion while meeting the high standards associated with medical equipment.

For NRT, standard gearbox configurations could not always provide the exact combination of mechanical interfaces, gear ratios, shaft configurations and performance required for the different movements in its X-ray systems.

NRT therefore needed a gearbox supplier capable of adapting proven gearbox technology to the specific requirements of each application.

Solution

BJ-Gear developed customised gearbox configurations based on the requirements of NRT’s X-ray systems.

For the Celex system, several different BJ-Gear gearboxes are used. Depending on the application, the gearboxes have been adapted with special side flanges, increased gear ratios, extended or dual output shafts and complete assemblies. Several configurations are also supplied with motors.

BJ-Gear gearboxes are also used for positioning movements in NRT’s RSA equipment, including movement of the patient table and telescopes.

The combination of adaptable gearbox designs, precision manufacturing and close technical cooperation enables NRT to integrate transmission solutions tailored to the mechanical and performance requirements of its medical equipment.

NRT X-RAY A/S — solution
Technical drawing 1 Technical drawing 2 Technical drawing 3

“We are pleased with the collaboration with BJ-Gear A/S. BJ-Gear is very responsive and if there are any technical challenges, they take it seriously and are quick and effective to problem solving. This means that we can deliver top quality products and the best service without delays”

Production Manager Jimmy Søegaard Obel