www.jbj.co.uk/couplings.html#flender 3 #DriveLineHarmony N-Eupex Series Introduction Torsionally Flexible Couplings Pocket part (part 1, 10) Cam part (part 3, 4, 7) G_MD10_EN_00176 The wear indicator must be attached to the outside diameter of the coupling after the coupling has been fitted. » The technical data and part numbers do not include the flexible variants NBR low-backlash, HNBR high temperature and NR low temperature. » Technical data, prices and part numbers on request. Types of N-EUPEX pin coupling Type Description A Fail-safe, 3-part B Fail-safe, 2-part D Fail-safe, 3-part, flange variant E Fail-safe, 2-part, flange variant H Fail-safe, with adapter O Fail-safe, 2-part, with brake drum P Fail-safe, 3-part, with brake drum EBD Fail-safe, 2-part, with brake disk DBD Fail-safe, 3-part, with brake disk DBDR Fail-safe, 3-part, with brake disk, brake disk radially dismountable ADS Non-fail-safe, 3-part BDS Non-fail-safe, 2-part HDS Non-fail-safe, with adapter Types of N-EUPEX pin coupling on request Type Description AT Fail-safe, 3-part, with Taper clamping bush BT Fail-safe, 2-part, with Taper clamping bush G Fail-safe, 2-part, with intermediate shaft F Fail-safe, 3-part, with intermediate shaft K Fail-safe, 3-part, with brake drum to customer's requirement L Fail-safe, 2-part, with brake drum to customer's requirement M Fail-safe, 2-part, with flange dimensions to SAE J620d Further application-related coupling types are available. Dimension sheets for and information on these are available on request. Function The motor torque is transmitted to the hub on the drive side via the shaft-hub connection, which is mostly designed as a keyway connection. The torque is transmitted to the hub on the output side with the aid of elastomer elements. The hub on the output side further transmits the torque to the driven machine or a gear unit placed in between. Because of the primarily compression-loaded elastomer elements, the coupling has a progressive torsional stiffness. In the case of the N-EUPEXDS coupling series, the elastomer element is subjected to bending and compression loads. In the event of overload or advanced wear, the coupling disconnects positively and the elements are irreparably damaged. The metal parts then rotate without touching one another. After new elastomer elements are fitted, the N-EUPEXDS coupling is oncemore operable. N-EUPEX DS couplings are maintenance-free, even in potentially explosive environments, so long as the possible torque interruption does not lead to an unacceptable disruption of the production process. Wear indicator for N-EUPEX couplings (optional) The wear indicator for N-EUPEX couplings enables the condition of the element to be easily assessed. The wear condition can also be ascertained with the aid of a stroboscope while the coupling is rotating. The production process can therefore continue undisturbed. If the stroboscope is to be used in a potentially explosive environment, please contact jbj Techniques technical office telephone: +44 (0)1737 767493 or email: info@jbj.co.uk for information about the equipment.
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