© Siemens AG 2015 FLENDER Standard Couplings Flexible Couplings — N-BIPEX Series General ■ Function The torque is transmitted to the hub at the drive end via the shaft- hub connection, which is mostly designed as a keyway connec- tion, and is transmitted to the hub on the output side via the cam ring. This hub then further transmits the torque to the driven ma- chine or a gear unit placed in between. The special cam design helps to keep the compression-loaded cam ring elements in their defined position under all operating conditions and to keep them evenly loaded. This results in a long lifetime of the flexible elements.
A long lifetime is also guaranteed by the hub parts which ensure maximum operational reliability even under harsh operating conditions. ■ Design The N-BIPEX coupling of type BWN comprises two identical hub parts connected by a cam ring of elastomer material. The hubs are connected to the respective shafts via finished bores with parallel keyway connection. N-BIPEX couplings are positive-locking and torsionally flexible thanks to the thermoplastic polyurethane cam ring. Coupling materials G_MD10_XX_00235 Hubs: EN-GJS-400-15 Cam ring:
• TPU 92 ShoreA -50 °C to +100 °C without any restrictions • TPU 95 ShoreA -50 °C to +100 °C without any restrictions • TPU 64 ShoreD -50 °C to +100 °C without any restrictions 9 9/3 Siemens MD 10.1 · 2015 Size Un- drilled Preferred bores from stock with cylindrical finished bores ∅ in mm H7, parallel keyway according to DIN 6885-1 JS9 and set screw 10 11 12 14 15 16 17 18 19 20 22 24 25 28 30 32 35 38 40 42 45 48 50 55 60 65 70 75 80 85 90 100 110 120 19 24 28 38 42 48 55 65 75 90 Preferred bores