Description Lightweight precision tandem housing (aluminum) Precision steel shaft with one ball guide groove Two torque-resistant Linear Bushings Torque-transmitting, hardened steel bearing plates set to zero clearance ex works Stability against cocking loads Features External seals Relubricatable Technical data General technical data Ø d mm 12 16 20 25 30 40 50 amax m/s² 150 vmax m/s 3 m kg 0.29 0.43 0.8 1.5 2.2 4 6.9 m (shaft) kg/m 0.89 1.57 2.45 3.8 5.5 9.8 15.3 Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +80 °C Load capacities and load moments Ød mm 12 16 20 25 30 40 50 C 1) N 1040 1260 2500 4900 6000 10200 15000 C0 1) N 840 1060 2100 4360 5580 8700 12940 Mt Nm 3.2 5.5 12 24 37 86 167 1) Load rating when both Linear Bushings are under equal load. The load ratings indicated are minimal values as the load direction cannot always be clearly defined. 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 m Mass kg m (shaft) Weight (shaft) kg/m Mt Dynamic torsional moment load capacity Nm vmax Maximum permissible speed m/s Reduced load capacity with short stroke In case of short stroke, the service life of the shaft is less than that of the torque-resistant Linear Bushing. The dynamic load ratings C in the tables must therefore be multiplied by the factor fs . 1) fs = factor 2) s = movement path Service life, shaft straightness, stabilized installation Definition of dynamic load ratings Dimensions a) Lubricating hole M8 sealed with plastic cap Dimensions Ød mm 12 16 20 25 30 40 50 D mm 22 26 32 40 47 62 75 B mm 42 50 60 74 84 108 130 E1 mm 64 70 88 110 130 148 194 E2 mm 30 36 44 54 62 80 100 H mm 18 22 25 30 35 45 50 Tolerance for H 1) µm + 13 - 22 H1 mm 35 42 50 60 70 90 105 L mm 76 84 104 130 152 176 224 l mm 400 500 600 N mm 12 15 18 20 S 2) mm 5.3 6.6 8.4 10.5 13.5 S1 M6 M8 M10 M12 M16 1) Two or more Linear Sets on one shaft are machined to the same dimension H while installed. Dimension H is reduced by 0.5 mm. 2) Fixing screws ISO 4762-8.8 Project planning information Life expectancy calculation Mounting Installation The Linear Sets come preassembled and set to zero clearance. When pulling out the shaft, the adjusting screws must be loosened and the torque-resistant Linear Bushing reset. Installing torque-resistant linear bushings General mounting instructions Commissioning Initial lubrication Torque-resistant Linear Bushings do not come with initial lubrication. Grease Linear Bushings before use, see "Initial lubrication" in the "Lubrication" section. Service life data is based on initial lubrication and relubricated Linear Bushings. Lubricating a Linear Set with a torque-resistant compact Linear Bushing: on-shaft via Ø = 3.9 lubricating hole until lubricant seeps out. Lubricating a tan
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