Description Low-cost Linear Bushing for general requirements Small outer dimensions and highly compact construction High dynamic load rating and long service life due to hardened segmental load-bearing plates with ball conformity in the track. Stainless steel for the medical, chemistry and food industries: Segmental load bearing plates comprising 1.4037 balls made from 1.3541 Integrated wiper seals, external seals or no wiper seals Features Normal radial clearance Not greased High travel speed (5 m/s) Simple mounting: Just press on – no additional securing needed Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life Pockets collect any dirt that may have worked its way in to prevent the Linear Bushing from jamming. Integrated metal holding rings about 0.1 mm larger than outer diameter (shaft diameters 12 to 50) for secure fit in housing bore Technical data General technical data Ø d mm 8 10 12 14 16 20 25 30 40 50 amax m/s² 150 vmax m/s 5 m kg 0.011 0.014 0.016 0.018 0.025 0.028 0.058 0.08 0.14 0.17 FR 1) 2) N 0.4 0.5 0.8 0.9 1 1.5 2 2.5 3 4 Breakaway force 1) N 0.8 1 1.5 1.8 2 3 4.5 6 8 10 μ 3) 01 ... 04 Rows of balls 4 5 6 Shaft radial clearance h6/bore H7 µm + 25 + 2 + 32 0 + 33 - 1 + 36 0 + 42 - 1 Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +80 °C 1) One wiper seal: Multiply by a factor of 0.5. 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) 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 8 10 12 14 16 20 25 30 40 50 Cmin N 350 420 510 530 660 780 1630 2140 3520 3970 Cmax N 410 500 610 630 780 990 2050 2700 4470 5030 C0min N 280 330 340 400 480 1050 1510 2510 2890 C0max N 400 480 500 580 720 1560 2230 3720 4280 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 Effect of load direction on load rating 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 ca
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