Coupling size DELFLEX Speed (RPM) 500 600 720 750 900 1000 1200 1500 1800 LF1 2390 2185 1980 1930 1750 1650 1470 1300 1140 LF2 2770 2515 2260 2235 2000 1880 1680 1450 1320 LF4 2950 2690 2440 2390 2190 2060 1850 1630 1500 LF8 3400 3070 2795 2720 2460 2310 2060 1780 1630 LF12 3400 3070 2795 2720 2460 2310 2060 1780 1630 LF16 3660 3275 2970 2900 2610 2440 2160 1830 1650 LF22 3660 3275 2970 2900 2610 2440 2160 1830 1650 LF25 3910 3505 3125 3050 2690 2490 2110 1630 1470 LF28 3910 3505 3125 3050 2690 2490 2110 1630 1470 LF30 4270 3835 3400 3330 2920 2690 2290 1730 1500 LF50 4395 3990 3630 3530 3200 3020 2670 2340 2100 LF80 4395 3990 3630 3530 3200 3020 2690 2340 2100 LF90 4495 3940 3400 3300 2720 2390 1750 965 860 LF140 4750 4290 3835 3730 3300 3070 2640 2100 1860 Coupling size DELFLEX Nominal torque Bore diameter Element Flange Hub Span Y BT FT TD [Nm] B2 OD FOD LTB L ET Rubber Min. Max. Rubber Rubber LF1 10 8 25 56 56 24 * 13 5 7 30 24 LF2 20 12 38 85 85 28 * 14 5 8 40 24 LF4 50 15 45 100 100 30 * 16 5 8 45 28 LF8 100 18 55 120 120 42 * 18 5 10 60 32 LF12 140 18 55 122 120 42 * 18 5 10 60 32 LF16 200 20 70 150 150 50 * 24 5 12 70 42 LF22 275 20 70 150 150 50 * 24 5 12 70 42 LF25 315 20 85 170 170 55 * 26 5 14 85 46 LF28 420 20 85 170 170 55 * 26 5 14 85 46 LF30 500 25 100 200 200 66 * 33 5 16 100 58 LF50 700 25 100 200 200 66 * 33 5 16 100 58 LF80 900 25 100 205 200 66 * 34.5 5 16 100 65 LF90 1.100 30 110 260 260 80 * 39 5 19 125 70 LF140 1.700 30 110 260 260 80 * 39 5 19 125 70 LF250 3.000 40 130 340 340 100 * 46 10 19 160 85 Coupling size DELFLEX Max. speed (RPM) MIN Max. span L (mm) (Short spans only) Span L (mm) at 1750 RPM Model 3 Model 3 (All versions) Model 3 Model 3B LF1 1500 6000 79 1140 1320 LF2 1500 6000 79 1320 1475 LF4 2900 6000 92 1500 1575 LF8 2900 6000 106 1625 1830 LF12 2900 6000 106 1625 1830 LF16 2900 6000 138 1650 1955 LF22 2900 6000 138 1650 1955 LF25 2900 5000 152 1475 2130 LF28 2900 5000 152 1475 2130 LF30 2500 4000 190 1500 2310 LF50 2500 4000 190 2100 2310 LF80 2500 4000 190 2100 2310 LF90 1500 3600 230 865 2515 LF140 1500 3600 230 1855 2515 LF250 1500 3000 274 2185 2970 Model 3, 3B & 3S dimensions (mm) Torque Limiting Couplings LF Torsional Coupling Supplement www.jbj.co.uk/torque-limiting-couplings.html 29 #DriveLineHarmony *Please specify distance between shaft ends L. Refer to table below for max. and min. values. Model 3, 3B & 3S Maximum speed and length data Model 3 (rubber) Max. span L (mm) at various speeds* * Longer spans for given speeds are possible with Model 3B.
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