Lineární vedení Schneeberger MINIRAIL - EN

24 7 0 200 400 600 800 1000 1200 18.0 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 G3 G1 C D E C D E MINIRAIL Product Overview 7.2.4 Running Accuracy In terms of tolerances, the running of the carriage on a guideway can take on either a linear or wave-like shape. The maximum permissible deviation is limited by the accuracy class of the guideway. As shown on the following diagram, the tolerance is determined by the rail length and by accuracy class G1 or G3. Example according to the diagram: A rail length of 600 mm and accuracy class G1 results in a maximum permissible deviation of 4.0 µm The parallelism deviations result from the manufacturing tolerances of the guide rails. The upper diagram shows the maximum parallelism deviation ∆ (µm) in operation, depending on the guide rail length. A prerequisite for validity is an ideal installation of the respective guideway. 7.2.5 Preload Classes The preload classes are defined as a fraction of the dynamic load capacity C (see chapter 17). The amount of preload is generally based on the intended use of the guideways. An increased preload … … increases the rigidity … increases the displacement resistance … reduces the service life Preload class Preload corresponding accuracy class V0 slightly play up to 0.01 • C G3 V1 0 to 0.03 • C G1 or G3 Running accuracy ∆ (μm) Rail length (mm) Reference side