When used in applications such as sliding doors, monitors or even panels, linear systems need to be able to cope with forces lateral to the intended movement. A novel linear system developed by igus and available from Treotham Automation incorporates hybrid bearings that provide low-friction adjustment with polymer rollers and tribo-polymer slide elements.
When combined with an easy-to-fit rail adapted to the new roller bearings, this hybrid linear system offers a cost-effective and visually appealing solution.
Igus drylin linear guides have been widely used in packaging machinery, furniture and even in machine tools. On tribologically optimised liners, the linear carriages slide on the rail, ensuring precise and long-lasting adjustment.
In cases where a low driving force is required for manual adjustments, rollers are used in the bearing element. However, where lateral forces are present, the position of the rollers for the force absorption is crucial. The new hybrid roller bearings overcome this, providing smooth adjustment with low drive forces and maximum support at the same time.
There are two versions: the WJRM-41-10 has two offset polymer rollers with optimised alignment for better force absorption and easier rolling. The WJRM-31-10 has a single roller, matching the supporting bearing on the opposite side. By using the two roller bearings, the user can minimise the coefficient of friction by half and increase the service life of the application.
Both bearings incorporate sliding elements made from iglidur J low-friction tribopolymer, which provides lubrication-free and maintenance-free operation.
With the addition of a top plate, the two new roller bearings can be expanded to a linear carriage. And igus has developed a new low-profile hybrid roller rail to accommodate this with a special geometry optimised for the hybrid roller bearing.
The rail has a simple design without visible holes and can be attached from the back with sliding blocks.
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