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drylin  linear technology | Curved rails and profiles                                                                    drylin  linear technology | Design rules
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        drylin  curved linear guide profiles                                                                                     Installation of curved guides
              ®
        igus  provides customised curved rails for the drylin  W                                                                  The floating bearing side should always be located on the
            ®
                                                      ®
        product range. This is especially for the requirements in                                                                inner guidance when bending in a curve. This is due to the
        operating ergonomics, e.g. guiding monitors and control                                                                  fact that the rail is compressed on the inside and requires
        systems in a radius to ensure safe and easy accessibility.                                                               a larger bearing diameter. The fixed bearing can be easily
        New standards can be set in design and construction with                                                                 identified by the bearing housings, which are attached with
        a drylin  curved guide.                                                                                                  four screws. The floating bearings are also marked on the
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                             ®
        ● 	Lubrication-free drylin  W carriages for curved rails                                                                 bearing element.
           u Page 103
        ● 	Variable profile directions
        ● 	Torque-resistant alternative to curved tube profiles
        ● 	Bending option depending on the radius, rail length,
           bearing/carriage and mounting
        ● 	Customised project service








                                                                Bending options                                                                                                          Floating            Fixed
                                                                                                                                                                                         bearing             bearing







                                                                Bending direction 1 = convex






        Curved drylin  linear technology - for ergonomic                                                                                            L                    S = min.
                     ®
        operation and optimal field of view                                                                                                                                1 mm
                                                                Bending direction 2 = concave
        Bending can give rise to surface changes (anodising,
        torsion) as a result of the deformation. Rail profiles with clear
        anodised (CA) surfaces that are undersized by up to 0.15                                                                                     R = xxx
        below nominal diameters are used to improve the surface
        finish of the curved rails. We recommend a bend radius of
        no less than 300mm and would like to point out that the   Bending direction 3 = curved bending
        surface finish quality after the bending process depends
        on the material quality. It may vary from batch to batch.

                                                                                                                                 With the concave/convex rails, the length (L) of the carriage
                                                                                                                                 is decisive for the desired radius. If the radius decreases
                                                                                                                                 and the sliding distance (L) increases, the gap (S) shrinks.
                                                                Bending direction 4 = curved bending
                                                                                                                                 The gap must be at least 1mm wide to prevent the rail
                                                              Different radii and bending directions available upon              from colliding with the carriage even after the wear limit
               Curved rail profiles                           request                                                            has been reached.
               u Page 98


               More Information and checklist online
               u www.igus-asean.com/curved                                                                         ASEAN 09/2023  ASEAN 09/2023

        48     Online tools and more information u www.igus-asean.com                                                                                3D CAD files, prices and delivery time online u www.igus-asean.com              49
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