DELFLEX LF Torsional performance data Coupling Size DELFLEX Nominal Torque Maximum Torque Max. speed (RPM) Allowable Continuous Vibratory Torque MAX. allowable misalignment** CTdyn Rubber 60 Shore A Rubber 50 Shore A Angular (Degrees) Parallel Axial (end float) T T KN K max nmax TKW (Standard) (Optional) ∆Kw ∆Kr Standard ∆Ka S-Style*** LF1 10 Nm 25 Nm 10.000 5 Nm 140 Nm/rad 90 Nm/rad 3 1.5 mm +/-2 mm +4.6 mm/-2 mm LF2 20 Nm 60 Nm 8000 10 Nm 290 Nm/rad 180 Nm/rad 3 1.5 mm +/-3 mm +3 mm/-3 mm LF4 50 Nm 125 Nm 7000 20 Nm 850 Nm/rad 550 Nm/rad 3 1.5 mm +/-3 mm +4.3 mm/-3 mm LF8 100 Nm 280 Nm 6500 40 Nm 1500 Nm/rad 900 Nm/rad 3 2 mm +/-4 mm +5 mm/-4 mm LF12 140 Nm 360 Nm 6500 50 Nm 4400 Nm/rad 2700 Nm/rad 2 2 mm +/-3 mm +5 mm/-4 mm LF16 200 Nm 560 Nm 6000 80 Nm 3400 Nm/rad 2000 Nm/rad 3 2 mm +/-5 mm +5.8 mm/-5 mm LF22 275 Nm 750 Nm 6000 100 Nm 9000 Nm/rad 6100 Nm/rad 2 2 mm +/-3 mm +5.8 mm/-5 mm LF25 315 Nm 875 Nm 5000 125 Nm 4500 Nm/rad 2800 Nm/rad 3 2 mm +/-5 mm +6.6 mm/-5 mm LF28 420 Nm 1200 Nm 5000 150 Nm 12000 Nm/rad 7500 Nm/rad 2 2 mm +/-3 mm +6.6 mm/-5 mm LF30 500 Nm 1400 Nm 4000 200 Nm 7800 Nm/rad 4800 Nm/rad 3 2 mm +/-5 mm +6.6 mm/-5 mm LF50 700 Nm 2100 Nm 4000 300 Nm 19000 Nm/rad 12000 Nm/rad 3 2 mm +/-5 mm +6.6 mm/-5 mm LF80 900 Nm 2100 Nm 4000 320 Nm 25000 Nm/rad 16000 Nm/rad 2 1.5 mm +/-5 mm +6.6 mm/-3 mm LF90 1100 Nm 3150 Nm 3600 450 Nm 16000 Nm/rad 10500 Nm/rad 3 2 mm +/-5 mm +8.6 mm/-5 mm LF140 1700 Nm 4900 Nm 3600 700 Nm 40000 Nm/rad 26500 Nm/rad 2 2 mm +/-5 mm +8.6 mm/-5 mm LF250 3000 Nm 8750 Nm 3000 1250 Nm 67000 Nm/rad 43000 Nm/rad 2 2 mm +/-5 mm +10 mm/-5 mm Coupling size DELFLEX Wind up (angle of twist) Static stiffness at NOM torque (Degrees) at MAX torque (Degrees) Axial Ca Radial Cr Angular Cw LF1 6 17 38 N/mm 150 N/mm 0.3 Nm/deg LF2 6 17 22 N/mm 150 N/mm 0.3 Nm/deg LF4 5 12 75 N/mm 500 N/mm 2.4 Nm/deg LF8 5 14 75 N/mm 500 N/mm 3.6 Nm/deg LF12 3 7.5 250 N/mm 1000 N/mm 9.0 Nm/deg LF16 5 14 100 N/mm 500 N/mm 5.0 Nm/deg LF22 3 7.5 500 N/mm 1300 N/mm 12.0 Nm/deg LF25 5 14 140 N/mm 600 N/mm 7.0 Nm/deg LF28 3 7.5 550 N/mm 1400 N/mm 17.0 Nm/deg LF30 5 14 190 N/mm 750 N/mm 9.0 Nm/deg LF50 3 7.5 650 N/mm 2200 N/mm 26.0 Nm/deg LF80 3 7.5 850 N/mm 2900 N/mm 34.0 Nm/deg LF90 5 14 220 N/mm 1000 N/mm 17.0 Nm/deg LF140 3 7.5 650 N/mm 2300 N/mm 38.0 Nm/deg LF250 3 7.5 1150 N/mm 4100 N/mm 68.0 Nm/deg Torque Limiting Couplings LF Torsional Coupling Supplement www.jbj.co.uk/torque-limiting-couplings.html 26 #DriveLineHarmony
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