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Another example of tribologically optimised plastic solutions is the hybrid linear bearing for safe guiding of sliding magazine doors. All machine tools or machining centres are equipped with such sliding doors. The magazine casings are completely dismantled for transport, including all guides, and reassembled at the customer's premises with as little adjustment work as possible. The customer's request is that the sliding doors should not be too smooth-running. At the same time, however, the amount of force required to push it on must not be too great. It is in these so-called subordinate movements that hybrid linear bearings demonstrate their strength. They must not tilt, should be quiet and also be lubrication-free and maintenance-free.
The new "drylin WJRM" hybrid linear bearings reduce drive force, especially for manual adjustment of doors, safety doors, sliding doors and locks. They combine the specific advantages of sliding and rolling movements. The main load is on the roller bearing, which reduces the required drive torque. The plastic sliders absorb potential radial loads. In this application, too, the main emphasis is on the roller when moving the working door. In addition, there is an extremely confined installation space. The hybrid linear bearing measures only 18 mm in height. It is used as a single rail in the sliding magazine doors. The aluminium profile, which is part of the system, pays for itself when changes are made. It can be reworked very easily, holes can be set or cut to length.
