Description Compact steel sleeve Two Torque-Resistant Compact Linear Bushings One ball guide groove for diameter shafts 12 and 16 mm Two ball guide grooves for diameter shafts 20 mm and higher Keyway for torque transmission Features Torque-transmitting, hardened steel bearing plates set to zero clearance ex works Stability against cocking loads 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 0.32 0.4 0.95 1.5 2.3 3.5 7.3 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 20 40 60 140 272 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) Ø 3.9 lubricating hole b) Depth t. For washer key A... DIN 6885 c) Concentricity tolerance Dimensions Ød mm 12 16 20 25 30 40 50 b P9 mm 5 6 8 D h6 mm 32 36 48 56 65 80 100 D1 mm 22 26 32 40 47 62 75 L h11 mm 76 84 104 130 152 176 224 L1 mm 20 22 28 36 40 45 63 l 1) mm 400 500 600 t mm 3 3.5 4 1) R.... ... 85: l = 900 mm, R.... ... 87: l = 1200 mm, R.... ... 88: l = 2000 mm 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. General mounting instructions Installation Linear sets with torque-resistant compact linear bushings 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 tandem Linear Set: on-shaft via recirculating lubricating groove in middl
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