www.jbj.co.uk/couplings.html#flender N-Bipex Series General Information Torsionally Flexible Jaw Couplings 2 #DriveLineHarmony The hubs are connected to the respective shafts via finished bores with parallel keyway connection or taper clamping bushes. N-BIPEX couplings are positive-locking and torsionally flexible thanks to the thermoplastic polyurethane coupling element. Coupling materials Coupling element: TPU 92 ShoreA; -50 °C to +100 °C without any restrictions An additional size marking has been provided on the outer surface of the coupling element to be able to determine the size of the N-BIPEX even when it is in the assembled state wi thout having to use any addi t ional aids. The coupling is suitable for use at ambient temperatures between -50 °C and +100°C without any restrictions on the rated torque as a result of temperature factors. Design andConfigurations In the case of part 4 the Taper clamping bush is inserted from the machine housing side. If there is insufficient space, the Taper clamping bush cannot be fitted from this side. Besides space for fitting the Taper clamping bush, space for the fitting tool (offset screwdriver) must be taken into consideration. In the case of part 3, the Taper clamping bush is screwed in from the shaft end face side. The hub must be fitted before the machines to be connected are pushed together. Function The torque is transmitted to the hub at the drive end via the shaft-hub connection, which is mostly designed as a keyway connection, and is transmitted to the hub on the output side via the coupling element. This hub then further transmits the torque to the driven machine or a gear unit placed in between. The special coupling element design helps to keep the compression-loaded coupling 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. The N-BIPEX coupling of type BWN comprises two identical hub parts connected by a coupling element of elastomer material. Hubs: EN-GJS-400-15 TPU 95 ShoreA; -50 °C to +100 °C without any restrictions TPU 64 ShoreD; -50 °C to +100 °C without any restrictions. The coupling comprises the following: Coupling element 2 hub parts with identical drive teeth. The hub parts are designed with a bore and keyway to DIN 6885-1 or with a taper bore for mounting a taper clamping bush. Fitting the clamping bush connects the hub firmly to the machine shaft. N-BIPEX coupling types BWNCoupling: as a shaft-shaft connection with drilled and grooved hubs. BWTCoupling: as a shaft-shaft connection with taper clamping bushes. BNT Coupling: as a shaft-shaft connection with drilled and grooved hubs and a taper clamping bush.
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