Three new N-Eupex couplings and optimised flexible parts

Flender is expanding the portfolio of its flexible coupling sequence N-Eupex by introducing three new types. Steps enable users additional flexibility of their systems without shedding the compact design and excessive load capacity of a pin coupling.
The new N-Eupex ERN is provided with a torque limiter, which provides even more
safety within the drivetrain in lots of purposes. The coupling variant allows customers to
specify a most torque so that crucial torques for the motor and output machine
are not transmitted. Machines and methods are shielded from overload and
harm, thus significantly increasing system availability.
With the N-Eupex B plus clamping element, Flender introduces a second new
coupling that ensures frictionally engaged clamping connections. In this case, the
plain, cylindrical machine shaft finish is linked to the coupling hub via a clamping
connection and not using a feather key and repair ability is increased. For instance,
meeting or alternative of worn elastomers can be carried out much more easily.
No connecting machine elements should be moved, the time required is halved
and so is the downtime of the machine.
With the N-Eupex DKS, a model new double-cardanic coupling is launched as a “short
version” into Flender’s modular system. While the DK sort, which was launched in
2020, addresses the pump market with standard enlargement items for normed shaft
distances, the DKS is the shortest possible double-cardanic answer for the market.
The shortened overall size allows cost-optimized use with a small shaft distance
dimension without shedding the benefits of a double-cardanic coupling connection.
New elastomers for the pin couplings round off the modular extensions. In addition
to the beforehand used rubber parts made of NBR, Flender now additionally presents
elastomers manufactured from thermoplastic polyurethane (TPU). Following the torque
increase for all N-Eupex couplings with NBR packings in 2020, the use of TPU
packings allows the facility density to be increased by another 20 p.c on
common. For sizes 300 and above, the acquainted NBR elastomer is mixed with
fabric inserts and the torque capacity is again raised.
“With a view to the long tradition of cam couplings, our development engineers are
systematically working on growing the number of combos even further. The
2022 enhancements give our customers a variety of sustainable options for
optimizing their machines and techniques much more and reducing maintenance,”
explains André Artmann, Head of Coupling Sales.
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