Transcription of GEAR COUPLINGS - Universal Technical Services
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GEAR COUPLINGS - Universal Technical Services
ORGANI DI TRASMISSIONE270 DGEAR COUPLINGSORGANI DI TRASMISSIONEA1 MAINA gear COUPLINGS - INTRODUCTIONThe full-flex gear COUPLINGS are employed to mechanically connect two rotating shafts which have to transmit a torque in a torsionally rigid way. The torque is transmitted from hub to sleeve and vice-versa by the working gear teeth, and between the connecting flanges of the two hubs by the set gear COUPLINGS are flexible to compensate the misalignment of the shafts to be connected. They compensate both the initial misalignment (support clearances, dimensional and geometrical tolerances of the equipment, alignment imperfections), and further alignment modifications (settling and support wear) and/or temperature (expansion).The gear COUPLINGS are flexible because their working gear teeth must be able to float and slide, in order to compensate misalignments. Floating is performed by engaging outer spherical gear teeth with inner cylindrical ones, both having proper tangential clearance.
MAINA gear couplings are obtained from forged steel ingots, machined and heat treated. Gear couplings can be made of different types of steel, as AISI 1045, AISI 4140, Nitralloy N/135/135M which are hardened and tempered before being machined. To increase the …
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