Description Steel precision housing Precision steel shaft with two ball guide grooves Torque-Resistant Linear Bushing Torque-transmitting, hardened steel bearing plates set to zero clearance ex works Stability against cocking loads Features External seals Technical data General technical data Ø d mm 20 25 30 40 50 amax m/s² 150 vmax m/s 3 m kg 1 1.5 2.7 5 8.7 m (shaft) kg/m 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 20 25 30 40 50 C 1) N 1550 3030 3680 6320 9250 C0 1) N 1050 2180 2790 4350 6470 Mt Nm 12 24 37 86 167 1) 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 Dimensions Ød mm 20 25 30 40 50 D mm 32 40 47 62 75 B mm 60 74 84 108 130 E1 mm 39 48 58 64 84 E2 mm 44 54 62 80 100 H mm 25 30 35 45 50 Tolerance for H 1) µm + 13 - 22 H1 mm 50 60 70 90 105 L mm 55 68 80 92 114 l 2) mm 500 600 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) 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. 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 tandem Linear Set: on-shaft via recirculating lubricating groove in middle of outer diameter until lubricant seeps out. Lubricating a flanged Linear Set: on-shaft via funnel-type lube nipple recessed on the end face until lubricant seeps out. Maintenance Lubrication Accessories Wiper seals
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