www.jbj.co.uk/couplings.html#flender 3 #DriveLineHarmony ELPEX-B Series Introduction Highly Flexible Couplings The permitted shaft misalignment depends on the operating speed. As the speed increases, lower shaft misalignment values are permitted. The correction factors for different speeds are specified in the following table. Themaximum speed for the respective coupling sizemust be noted. With flexible couplings the manufacturing process of the rubber elements and their aging primarily influence the stiffness value C . For this reason Tdyn calculation must be made with a tolerance for the dynamic stiffness of ±20%. The specified damping coefficient Ψ is a minimum value with the result that the damping performance of the coupling corresponds at least to the specified value. 500 1000 1500 3000 Restorative forces on request. Correction factor FKV 1.2 1.1 1.0 0.7 The damping coefficient isΨ= 0.9 Torsional stiffness depends on the ambient temperature and the frequency and amplitude of the torsional vibration excitation. More precise torsional stiffness and damping parameters on request. ΔKperm= ΔK1500 ⋅ FKV The restorative force (including in the axial direction) depends on speed, system torque and shaft misalignment. The technical data for the elastic tires made of natural rubber and chloroprene rubber are virtually identical. Torsional Stiffness andDamping Speed in rpm Permitted Shaft Misalignment
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