Description Low-cost Linear Bushing for high requirements Steel bearing plates with machined ball guide grooves and optimized ball lead-in chamfers for outstandingly smooth travel and a long service life Without self-alignment feature for transferring lower tipping force along the axial direction High travel speed (5 m/s) Integrated wiper seals, external seals or no wiper seals Features Ball retainer and outer sleeve made of PA or POM Balls made of rolling bearing steel No initial lubrication Technical data General technical data Ø d mm 10 12 16 20 25 30 40 50 amax m/s² 150 vmax 1) m/s 3 m kg 0.017 0.023 0.028 0.061 0.122 0.185 0.36 0.58 FR 2) N 0.5 0.8 1 1.5 2 2.5 3 4 Breakaway force 3) N 1 1.5 2 3 4.5 6 8 10 μ 4) 01 ... 025 Rows of balls 5 6 Shaft radial clearance h6/bore H7 µm + 9 + 36 + 38 + 10 + 43 + 11 + 50 + 12 Shaft radial clearance h6/bore K7 µm + 21 - 6 + 23 - 5 + 25 - 7 + 29 - 9 Shaft radial clearance h6/bore M7 µm + 15 - 12 + 17 - 11 + 18 - 14 + 20 - 18 Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +80 °C 1) Speeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. Tests have shown total travel from 50 • 105 m to 100 • 105 m without failure. 2) 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. 3) One wiper seal: Multiply by a factor of 0.5. 4) Friction coefficients of unsealed Linear Bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load. Load capacities and load moments Ød mm 10 12 16 20 25 30 40 50 Cmin N 600 830 1020 2020 3950 4800 8240 12060 Cmax N 820 1140 1400 2470 4820 5860 10070 14730 C0min N 330 420 530 1050 2180 2790 4350 6470 C0max N 480 620 780 1340 2790 3570 5570 8280 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 Cmax Maximum dynamic load rating N Cmin Minimum dynamic load rating N C0max Maximum static load rating N C0min Minimum static load rating N FR Friction force N m Mass kg vmax Maximum permissible speed m/s μ Friction coefficient Impact of load direction on load rating of closed Linear Bushings 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 shaft is less than that of the supe
Бесплатная доставка по РФ при заказе от 50 000 р.
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