www.jbj.co.uk/couplings.html #DriveLineHarmony Technical Characteristics ® SITEX Gear Couplings Selection For a proper sizing a safety factor k = 1,3 – 1,6 must be considered in accordance to the application. Or, the coupling nominal torque must be greater than or equal to the engine torque multiplied by k: TKN ≥ TN ∙ k TKN = coupling nominal torque TN = engine side torque k = safety factor selected in accordance with the use Applications k factor Tandem rollers 1.6 Asphalt processing machines 1.4 Agricultural machines 1.4 Fork lift trucks 1.6 Concrete Mixer 1.3 Self-propelled cranes 1.4 Excavators 1.4 Farm tractors 1.4 Road working machines 1.4 9 Misalignment Torque Weight / Moment of inertia Dynamic torsional rigidity +60 °C dampening factor [Ψ] = 0.4 SAE SITEX® FL Flange Axial Angular Radial Nominal Max Reversible Hub [Nm/rad] (mm) (°) (mm) TKN Tkmax TKW 6-1/2” 7-1/2” 8” 10” 11-1/2” 0.25 TKN 0.50 TKN 0.75 TKN 1.00 TKN Kg 0.68 0.39 0.455 0.565 0.8 - 3 3 3 3 42 2 1° 0,2 240 600 120 33 x 10 78 x 10 110 x 10 130 x 10 2 Kgm 0.0006 0.003 0.004 0.006 0.011 - Kg 0.75 0.4 0.52 0.5 0.75 - 3 3 3 3 48 2 1° 0,2 250 620 125 33 x 10 78 x 10 110 x 10 130 x 10 2 Kgm 0.0007 0.003 0.004 0.006 0.011 - Kg 0.85 0.4 0.52 0.5 0.75 - 3 3 3 3 48 P 1 1° 0,2 310 780 155 38 x 10 88 x 10 125 x 10 148 x 10 2 Kgm 0.0007 0.003 0.004 0.006 0.011 - Kg 1.4 - 0.45 - - - 3 3 3 3 55 1 1° 0,2 500 1250 250 50 x 10 140 x 10 175 x 10 200 x 10 2 Kgm 0.0019 - 0.0035 - - - Kg 2.4 - - 0.8 0,93 1.08 3 3 3 3 65 2 1° 0,3 660 1650 330 58 x 10 142 x 10 205 x 10 250 x 10 2 Kgm 0.005 - - 0.009 0.015 0.023 Kg 2.45 - - 0.8 0.93 1.08 3 3 3 3 65 P 1 1° 0,2 800 1950 400 76 x 10 185 x 10 270 x 10 330 x 10 2 Kgm 0.005 - - 0.009 0.015 0.023 Kg 5.1 - - - - 1.13 3 3 3 3 80 2 1° 0,3 1300 3100 650 190 x 10 420 x 10 590 x 10 710 x 10 2 Kgm 0.015 - - - - 0.023
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