Solution
Today, iglidur plastic bearings are used in the robot instead of metal bearings. The high-performance iglidur plastics enable the device to work in the difficult environment without interacting with the magnetic field.
They drive the translation and rotation axes of the robot. In addition,
lead screws and nuts from the drylin portfolio as well as
drylin SLW linear systems and
easytube linear units are used. The bearing components are also used in the application to generate a smooth and low-friction shaft rotation to drive the robot's joints. This is because the MRI-compatible motors used developed a relatively low torque, which also generated friction when propelling the heavy payload.