FLENDER Standard Couplings Coupling Preselection and Options © Siemens AG 2015 Selection of the coupling series ■ Selection and ordering data The coupling series is frequently determined by the driven ma- chine and the design of the drive train. Common selection crite- ria are listed below and assigned to coupling properties, which are used to select the coupling series. Additionally, the price of the coupling and availability are important criteria for determin- ing the coupling series to be used. The FLUDEX coupling cannot compensate for shaft misalign- ment and is therefore designed in combination with a displace- ment coupling, a cardan shaft or a belt drive.
The displacement coupling may be selected in accordance with the criteria de- scribed below. 3 The FLUDEX series operates positively and transmits the torque with the aid of a flowing oil or water filling. FLUDEX cou- plings are used to reduce starting and/or overload torques. Dur- ing starting, the motor may, for example, run up within a very short time; because of the FLUDEX coupling, the drive train with the driven machine may accelerate after a delay and without in- creased torque load. – Not possible 3/2 Siemens MD 10.1 · 2015 Selection criterion ZAPEX ARPEX N-EUPEX N-EUPEX DS RUPEX N-BIPEX ELPEX-B ELPEX-S ELPEX Torque range Rated coupling torque TKN in Nm 850 ... 92 ... 19 ... 19 ...
200 ... 12 ... 24 ... 330 ... 1600 ...
7200000 1450000 62000 21200 1300000 4650 14500 63000 90000 Speed range Peripheral speed vmax = DA ⋅nmax/19100 60 100 36 36 60 45 35 66 60 Torque load uniform non uniform rough – – very rough – – – – Installation and alignment Rigid installation, well aligned Rigid installation, roughly aligned – – – – – Flexible installation – – – – – Torsional stiffness Torsionally rigid – – – – – – – Torsionally flexible – – – – Highly flexible – – – – – – Torque transmission Free of torsional backlash – – – – – Low torsional backlash – – – – – Overload withstand capability – – Assembly Plug-in assembly – – – with Taper clamping bushes – – – – – Maintenance Wear parts easily dismountable – Maintenance-free – – – – – – – Low-maintenance - interval 1 year – Environment ATEX Approval – – Operating temperature range -20 ...
-40 ... -50 ... -30 ... -50 ... -50 ... -50 ... -40 ... -40 ... +80 °C +280 °C +100 °C +80 °C +100 °C +100 °C +70 °C +120 °C +80 °C Chemically aggressive Coupling material Cast iron – – Steel – – – Stainless steel – – – – – – Add-on parts / types Adapter – Brake disk – – Brake drum – – Axial backlash limiter – – – – Shiftgear – – – – Flange type – – Flange to SAE J620d – – Standard On request