Description Precision housing with side opening (steel) Radial Linear Bushing Two wiper seals Relubricatable Product description Significant reduction in load capacity must be factored in if open Linear Bushings are loaded counter to the direction of opening. This Linear Set allows a radial Linear Bushing to be installed on the side to ensure full utilization of the high dynamic load ratings. Technical data General technical data Ø d mm 30 40 50 60 80 amax m/s² 50 vmax m/s 2 m kg 7.8 15 27.5 48 105 FR N 8 11 14 16 20 Breakaway force N 24 32 40 48 60 Radial clearance Comes with an h5 shaft (lower limit) and set to zero clearance Operating conditions Permissible ambient temperature (min ... max) 1) -20 °C ... +80 °C 1) 100 °C for a short period Load capacities and load moments Ød mm 30 40 50 60 80 C 1) N 8500 13900 20800 29500 54800 C0 1) N 9520 16000 24400 34100 61500 1) The load ratings apply for the main direction of loading in arrow direction FH1 or FH2. 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 Definition of dynamic load ratings Rigidity Combining a radial Linear Bushing with a continuously supported guide shaft ensures a precise, rigid design. The following figure shows load-dependent spring. The diagram applies for installation: Without preload With zero clearance (no preload) for load direction ρ = 0° – 90° and 270° – 360° Radial Linear Bushing rigidity Installing with preload reduces spring. Additional spring in all parts of a linear guide (housing, shaft, shaft support rail) depends on the load direction. Guideline values for total spring with R1076 and R1010 elements: load direction factor multiplied by spring ∂ (from right diagram). 1) F = load N 2) ∂ = spring mm Overall deflection depending on the load direction Load direction ∂ 0° 90° 180° 270° Overall deflection 1 • ∂ 1,8 • ∂ 3,5 • ∂ 1,8 • ∂ Effect of load direction on load rating The load ratings C and C0 specified for Radial Linear Bushings apply for load direction ρ = 0°. If the external load is at an angle ρ = 90° – 270°, a reduced load capacity must be factored in. The dynamic load rating is then determined by multiplying the specified dynamic load rating C or C0 by the load direction factors fρ or fρ0. This reduced load capacity can be avoided by careful installation of the radial Linear Bushings. Diagrams/characteristic curves Load direction factors Dimensions a) Lubricating hole sealed with plastic cap b) Maximum acceptable loads: Dimensions Ød mm 30 40 50 60 80 D mm 60 75 90 110 145 A js16 mm 110 135 165 200 265 A1 js16 mm 83 100 125 150 200 A2 js16 mm 27 35 40 50 65 E2 mm 110 142 180 215 275 E3 mm 28 40 50 60 75 E4 mm 65 76 95 115 155 H mm 48 60 70 85 110 Tolerance for H 1) µ
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