TORSIONAL COUPLINGS LM COUPLING INSTALLATION INSTRUCTIONS 42 Standard Types SB, SCA, SCB Drop Out Types SBE, SCE Coupling Size LM240 LM400 LM800 LM1600 LM2800 LM1200 LM2400 LM3500 Screw Size M8 x 20 M8 x 20 M10 x 20 M12 x 25 M16 x 40 DIN 912 Class 8.8 8.8 8.8 8.8 10.9 Tightening Torque TA1 (Nm) 25 25 50 85 310 Quantity 8 8 8 8 8 Tightening Torque - Inner Hub Screws TA1 for standard types SB, SCA, SCB Tightening Torque - Inner Hub Screws TA3 for special types SBE, SCE Coupling Size LM240 LM400 LM800 LM1600 LM2800 LM3500 LM1200 LM2400 LM3500 Screw Size M8 x 25 M8 x 25 M10 x 30 M12 x 30 M16 x 40 M16 x 50 DIN 912 Class 10.9 10.9 10.9 10.9 10.9 10.9 Tightening Torque TA3 (Nm) 35 35 70 120 310 310 Quantity 12 16 16 16 8 8 Tightening Torque - Flywheel Adaptor Flange Screws* TA2 for all LM types SAE Size 6½ 7½ 8 10 11½ 14 16 18 21 24 Metric Screws DIN 912 class 8.8 (Nm) M8 M8 M10 M10 M10 M12 M12 M16 M16 M18 25 25 50 50 50 90 90 220 220 290 Inch Screws SAE grade 5 (Nm) (ft/lb) 5/16-18 5/16-18 3/8-16 3/8-16 3/8-16 1/2-13 1/2-13 5/8-11 5/8-11 3/4-10 25 25 40 40 40 110 110 205 205 375 19 19 30 30 30 80 80 150 150 275 * We do not supply these screws #DriveLineHarmony www.jbj.co.uk/torsional-couplings.html
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