Description High torque capacity Top rigidity in all load directions All metal parts are made from corrosion-resistant steel Best sealing action of end seals Greater side loads permitted For mounting from below Ball Guide Rail as well as all steel parts made of corrosion-resistant steel according to DIN EN 10088 Observe the notes for mounting! Please request the "Mounting instructions for Ball Rail Systems" and "Mounting instructions for cover strip". Features Top rigidity in all load directions High torque capacity No extra space needed at rail ends Product description Ball rails can be cut to the length required by the customer. The maximum lengths for one-piece guide rails can be found in the "Technical data" chapter. If longer rails are required, Bosch Rexroth supplies them as composite ball guide rails. Corrosion resistance and conditions of use Ball Guide Rails Resist NR II as well as all steel parts are made of corrosion-resistant steel as per DIN EN 10088, strip clamps are made of aluminum. Ball Guide Rails Resist NR II are especially suited for use in wet environments, heavily diluted acids, alkali or saline solutions. These linear guides are ideally suited for use at relative humidities above 70% and temperatures exceeding 30°C. Such conditions are mainly found in cleaning plants, electroplating and pickling plants, steam degreasing plants, and also refrigeration machines. Since additional corrosion protection is not required, Ball Rail Systems Resist NR II are especially suitable for use in clean rooms and printed circuit board production in general. Other possible areas of application include the pharmaceutical and food industries. Ball guide rail with temperature control Product description of Ball Rail Systems Selection of a linear guide acc. to DIN 637 Technical data General technical data Size 15 20 25 30 35 m kg/m 1.4 2.4 3.2 5 6.8 Lmax mm 1856 3836 Material NRII Operating conditions Size 15 20 25 30 35 Permissible ambient temperature (min ... max) 1) 0 °C ... +80 °C 1) Up to 100 °C permissible for short periods. For operation at negative temperatures, please consult us. Legend Symbol Description Unit Lmax Maximum length mm m Mass per meter kg/m Accuracy classes Dimensions Dimensions Size 15 20 25 30 35 A2 mm 15 20 23 28 34 H2 mm 16.2 20.55 24.25 28.35 31.85 N7 mm 7.5 9 12 15 S7 mm M5 M6 M8 T mm 60 80 T1 min mm 10 12 T1 s mm 28 1) 38 1) T1 max mm 50 68 nB 30 64 48 1) Preferred dimension T1S Recommended with tolerances ± 0.75. Legend Symbol Description Unit T1 min Minimum distance mm T1 max Maximum distance mm T1 s Preferred dimension mm T Spacing of guide rail mm nB Maximum number of holes Project planning information See the section on Ball Runner Blocks Resist NR II for the recommended Ball Runner Blocks for the Ball Guide Rails Resist NR II Combinations of different accuracy classes Combining Ball Guide Rails and Ball Runner Blocks of different accuracy classes results in different tolerances for the dimensions H and A3 (see
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