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Belflex™ bellows couplings are an assembly of two
aluminum hubs and a uniform, thin walled stainless steel bellows. The
use of aluminum hubs with a bellows results in a coupling with very low
inertia, a feature that is very important in today’s highly responsive
systems. The characteristics of bellows make them an ideal method for
transmitting torque in motion control applications. The bellows allow
the coupling to bend easily under loads caused by the three basic types
of misalignment between shafts (angular, parallel, axial motion). Among
servo couplings, bellows type couplings are one of the stiffest
available, making them ideal in high performance applications that
require a high degree of accuracy and repeatability.
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