Описание For self-supporting, torsionally stiff guides with only one shaft Torque-Resistant Linear Bushings with adjusting screw come set to zero clearance Shafts machined to customer specification Precision steel shaft with two ball guide grooves for transferring torque Ball retainer and outer sleeve made of PA or POM Features Hardened steel bearing plates Balls made of rolling bearing steel Hardened steel adjusting screw Steel lock nut Technical data General technical data Ø d mm 20 25 30 40 50 amax m/s² 150 vmax m/s 3 m kg 0.064 0.135 0.21 0.39 0.68 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 Описание 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 1) mm 32 40 47 62 75 B mm 45 58 68 80 100 M M10x1 M12x1 M16x1,5 M1 22 mm +0.1 26 mm +0.1 34 mm +0.1 N1 mm 21.5 28.5 32 44 52 N2 mm 8 9.5 12.5 1) Recommended installation bore: DJS7. Project planning information Life expectancy calculation Mounting General mounting instructions Commissioning Initial lubrication Linear bushings do not come with initial lubrication. Grease the Linear Bushings before use. Service life data is based on initial lubrication and relubricated Linear Bushings. Maintenance Lubrication Accessories Wiper seals for Torque-resistant Linear Bushings, type 2 Wiper seals for Torque-resistant Linear Bushings, type 2 Galvanized metal case Elastomer wiper seal Not product-specific documents Catalog Instructions Service CAD data Certification Directives and standards Safety Instructions Notes Ordering codes Material numbers Ød Part number Lubrication Raceway Shaft Shaft length Short product name CAD data Buy mm 20 R069632089 No initial lubrication 2 ball guide grooves With solid shaft Shaft length cut to size KBDR2-20-WV-K R069632079 With X90 stainless steel shaft KBDR2-20-WV-X90-K 25 R069632589 With solid shaft KBDR2-25-WV-K R069632569 With Tubular Shaft KBDR2-25-WO-K R069632579 With X90 stainless steel shaft KBDR2-25-WV
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