TORSIONAL COUPLINGS LM TECHNICAL DATA - SILICONE (50 Shore A) 38 Temperature Factor St2SI for continuous vibratory torque Tkw and allowable power loss Pkv Coupling Size Nominal Torque Rating Tkn (Nm) *Maximum Torque1 Tkmax1 (Nm) *Maximum Torque2 Tkmax2 (Nm) Continuous Vibratory Torque Tkw (Nm) Allowable Power Loss Pkv (W) *** Dynamic Torsional Stiffness Ctdyn (Nm/rad) Relative Damping < 10% Tkn 25% Tkn 50% Tkn 75% Tkn 100% Tkn LM800 700 1050 1400 280 105 2200 2400 2800 3500 4600 1.15 LM1200 1000 1500 2000 400 150 3600 3900 4500 5600 7400 LM1600 1450 2200 2900 580 220 4800 5200 6000 7500 9900 LM2400 2000 3000 4000 800 300 8000 8700 10000 12500 16500 LM2800 2800 4200 5600 1120 360 21000 2300 25000 32500 42500 LM3500 3200 4800 6400 1280 450 12800 13900 16000 20000 26500 * Tmax1 indicates the maximum allowable value for transient torque spikes during the normal work cycle, eg. from accelerating through a resonance during starting and stopping or clutching. ** Tmax2represents the absolute maximum peak torque allowable during rare occasions such as during a short circuit of a ge-set or incorrect synchronization. *** The silicone material creates a progressive stiffness characteristic dependent on load. These values have tolerance of + or -15%. #DriveLineHarmony www.jbj.co.uk/torsional-couplings.html 0
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