FLENDER Standard Couplings Highly Flexible Couplings — ELPEX-B Series © Siemens AG 2015 General information ■ Technical data Power ratings Torsional stiffness and damping The damping coefficient is Ψ = 0.9 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. The maximum speed for the respective coupling size must be observed! Permitted shaft misalignment The technical data for the elastic tires made of natural rubber and chloroprene rubber are virtually identical.
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. Δ K perm = Δ K 1500 ⋅ FKV With elastic couplings the manufacturing process of the rubber elements and their aging primarily influence the rigidity value C Tdyn . For this reason calculation must be made with a tolerance for the dynamic rigidity of ± 20 %. The specified damping coeffi- cient Ψ is a minimum value with the result that the damping per- formance of the coupling corresponds at least to the specified value.
Correction factor FKV 1.2 1.1 1.0 0.7 10 The restorative force (including in the axial direction) depends on speed, system torque and shaft misalignment. Restorative forces on request. 1) The maximum speed of the respective type must be noted. For further information on permissible shaft misalignment, please see the operating instructions.
10/4 Siemens MD 10.1 · 2015 Size Rated torque Maximum torque Overload torque Fatigue torque Maximum speed Dynamic torsional stiffness for 100 % load Permitted shaft misalignment at speed n = 1500 rpm 1) Axial Radial Angle TKN TKmax TKOL TKW nKmax CTdyn ΔKa ΔKr ΔKw Nm Nm Nm Nm rpm Nm/rad mm mm Degrees 105 135 165 190 210 235 255 280 315 360 400 470 510 560 630 Speed in rpm 500 1000 1500 3000