Description Precision housing (lamellar graphite cast iron/steel) Standard Linear Bushing with wiper seals Secured with locating screw Product description Linear sets with standard Linear Bushings, open, for zero-clearance or preloaded guides. Technical data General technical data Ø d mm 20 25 30 40 50 60 80 amax m/s² 100 50 vmax m/s 2.5 2 m kg 0.38 0.74 1.12 2.2 3.11 5.72 13.09 FR 1) N 6 7 8 11 14 16 20 Breakaway force N 16 19 24 32 40 48 60 Radial clearance Comes clamped to h5 shaft (lower limit) and set to zero clearance Operating conditions Permissible ambient temperature (min ... max) -10 °C ... +80 °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. Load capacities and load moments Ød mm 20 25 30 40 50 60 80 C 1) N 1280 2270 2890 5280 8470 11800 21500 C0 1) N 970 1750 2390 4000 6900 9780 17400 1) The load ratings apply for the main direction of loading. 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 For load in the direction of opening, please refer to the loading diagrams (see "Diagrams" section). Impact of load direction on load rating of open Linear Bushings The load ratings C and C0 apply for the main direction of loading ρ = 0°. For all other load directions, the load ratings must be multiplied by the factors fρ (dynamic load rating C) or fρ0 (static load rating C0). Installing specific Linear Bushings can prevent reductions in load capacity (see Linear Set with side opening). Definition of dynamic load ratings Dimensions Dimensions Ød mm 20 25 30 40 50 60 80 D mm 32 40 47 62 75 90 120 α ° 60 50 54 A 1) mm 60 74 84 108 130 160 200 B mm 42 1) 54 1) 60 1) 78 1) 70 1) 92 1) 122 1) B1 mm 28 40 48 56 72 95 125 E1 45 mm ±0.15 60 mm ±0.15 68 mm ±0.2 86 mm ±0.2 108 mm ±0.2 132 mm ±0.25 170 mm ±0.5 E2 32 mm ±0.15 40 mm ±0.15 45 mm ±0.2 58 mm ±0.2 50 mm ±0.2 65 mm ±0.25 90 mm ±0.25 H mm 25 30 35 45 50 60 80 Tolerance for H 2) µm + 5 - 19 + 4 - 21 + 8 - 25 + 8 - 26 + 7 - 28 H2 1) mm 42 51 60 77 88 105 140 L mm 45 58 68 80 100 125 165 S mm 4.5 5.5 6.6 9 11 13.5 SW mm 2.5 3 4 5 6 8 V 1) mm 8 9 10 12 14 15 22 W 3) mm 10 12.5 16.8 21 27.2 36.3 1) Tolerance ISO 8062-3 - DCTG 9. 2) Clamped (fastened) in relation to Ø d. 3) Minimum size in relation to Ø d. Project planning information Life expectancy calculation Mounting Radial clearance The radial clearance values shown in the table have been determined from statistics and correspond to values expected in practice. The R1066, R1068 and R1072 Linear Sets come clamped to an h5 shaft (lower limit) and set to zero clearance. Vertical dimension The tolerance values for the vertical dimension "
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