Description Lightweight precision tandem housing (aluminum) Two compact Linear Bushings KBC-NR Integrated wiper seals Normal radial clearance Initial lubrication with Dynalub 510 Technical data General technical data Ø d mm 12 16 20 25 30 40 50 amax m/s² 150 vmax m/s 5 m kg 0.17 0.24 0.31 0.57 0.8 1.54 2.45 FR 1) N 0.8 1 1.5 2 2.5 3 4 Breakaway force N 1.5 2 3 4.5 6 8 10 Shaft radial clearance h6 µm + 32 0 + 33 - 1 + 36 0 + 42 - 1 Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +80 °C 1) Frictional drags generated by Linear Bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication. Load capacities and load moments Ød mm 12 16 20 25 30 40 50 C 1) N 920 1180 1610 3330 4385 7260 8170 C0 1) N 780 920 1440 3120 4460 7440 8560 ML0 Nm 13 18 21 59 103 204 271 1) The load ratings apply for the main direction of loading. If the load direction is not the main direction of loading, the load ratings must be multiplied by the following factors: Ø d 12 and 16: f = 0,90, f0 = 0.86, Ø d 20 to 50: f = 0.79, f0 = 0.68 The load ratings are based on a total travel of 100, 00 m. When based on 50 000 m, the values in the table need to be multiplied by 1.26. Legend Symbol Description Unit Ød Shaft diameters mm amax Maximum acceleration travel m/s2 C Dynamic load capacity N C0 Static load capacity N FR Friction force N m Mass kg ML0 Static longitudinal moment load capacity Nm vmax Maximum permissible speed m/s2 Effect of load direction on load rating The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used. Reduced load capacity with short stroke In case of short stroke, the service life of the shafts is less than that of Linear Bushings. The load ratings C specified in the tables must therefore be multiplied by the factor f.s . 1) fs = factor 2) s = stroke Definition of dynamic load ratings Dimensions Dimensions Ød mm 12 16 20 25 30 40 50 D mm 19 24 28 35 40 52 62 A mm 40 45 53 62 67 87 103 E1 29 mm ±0.15 34 mm ±0.15 40 mm ±0.15 48 mm ±0.15 53 mm ±0.15 69 mm ±0.15 82 mm ±0.15 E2 35 mm ±0.15 40 mm ±0.15 45 mm ±0.15 55 mm ±0.15 70 mm ±0.15 85 mm ±0.15 100 mm ±0.15 H mm 17 19 23 27 30 39 47 Tolerance for H 1) µm + 24 0 + 25 0 + 26 0 + 14 - 12 H1 mm 33 38 45 54 60 76 92 H4 mm 11 13 15 17 19 24 30 L mm 60 65 85 105 125 145 N1 mm 16 18 22 26 29 38 46 N2 mm 11 13 18 22 26 S 2) mm 4.3 5.3 6.6 8.4 10.5 S1 M5 M6 M8 M10 M12 1) In relation to Ø d. 2) Fixing screws ISO 4762-8.8 Legend Symbol Description Unit Ød Shaft diameters mm C/C0 Main direction of loading ML0 Static torsional moment laod capac
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