Description Pillow Block Housing made of reinforced PA Segmental Linear Bushing Lightweight, stable and affordable Two interchangeable wiper seals Radial clearance adjustable Features A2 stainless steel bolt, washer and nut Technical data General technical data Ø d mm 12 16 20 25 30 40 amax m/s² 150 vmax m/s 3 m kg 0.041 0.063 0.077 0.158 0.277 0.47 FR 1) N 1.5 2 2.5 3 4 5 Breakaway force 2) N 3 4.5 5 7 9 12 Radial clearance Comes clamped to h5 shaft (lower limit) and set to zero clearance Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +65 °C 1) 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. 2) Frictional drags generated by Linear Bushings with seals on both ends when not under radial load. This depends on speed and lubrication. Load capacities and load moments Ød mm 12 16 20 25 30 40 C 1) N 240 360 510 820 1200 1940 C0 1) N 330 490 690 1090 1570 2610 1) The load ratings indicated are minimal values as the orientation and direction of load 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 FR Friction force N m Mass kg vmax Maximum permissible speed m/s 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 capacity with short stroke In case of a short stroke, the service life of the shaft is less than that of the segmental Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s . Definition of dynamic load ratings Dimensions Dimensions Ød mm 12 16 20 25 30 40 A mm 55 66 69 87 97 124 B mm 20 22 23 30 36 48 E 43 mm ±0.15 53 mm ±0.2 58 mm ±0.25 72 mm ±0.25 80 mm ±0.3 103 mm ±0.3 H 1) 18 mm ±0.05 22 mm ±0.05 25 mm ±0.08 30 mm ±0.08 35 mm ±0.1 45 mm ±0.1 H1 mm 35 42 50 60 70 90 L mm 31 35 38 46 55 67 L1 mm 24 28 30 37 44 56 L1 24 mm 28 mm 30 mm 37 mm 44 mm 56 mm S mm 4.4 5.5 6.6 8.6 V mm 8 9.5 10.5 11.5 13 17 1) In relation to nominal shaft dimension "d" Project planning information Selection guide for operation under difficult conditions For constantly humid or damp conditions caused, for instance, by water-based coolants/lubricants, we recommend the stainless steel Linear Bushing with parts made of steel in accordance with ISO 683-17 / EN 10088. Life e
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