13
Sep
Sep
ROTEX®DFN
Product characteristics
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General description
ROTEX® - couplings are torsionally flexible and designed for; positive torque transmission. They are fail-safe. Operational vibrations; and shocks are efficiently dampened and reduced. The two congruent; coupling halves with concave claws on the inside are periphally offset; in relation to one another by half a pitch.
In addition, they are designed in such a way as to enable an involute spider to be located between them.
The teeth of the spider are crowned to avoid edge pressure if the shafts are misaligned.
ROTEX® couplings are capable of compensating for axial, radial and angular displacements of the shafts to be connected.
Performance
In contrast to other flexible couplings, the intermediate members; of which are subject to bending stress and are therefore prone to; earlier wear, the flexible teeth of ROTEX couplings are subject to; pressure only. This gives the additional advantage of the individual; teeth being able to accept considerably higher loads.The elastomer parts; show deformation with load and excessive speeds. Sufficient space for; expansion should be ensured (see drawing – deformation with load).
The maximum torsion angle with ROTEX couplings of any size amounts to 5°. They can be fitted both horizontally and vertically.
Explosion-proof use
ROTEX® couplings are suitable for power transmission in drives in; hazardous areas. The couplings are certified and confirmed according to; EC standard 94/9/EC (ATEX 95) as units of category 2G/2D and thus; suitable for the use in hazardous areas of zone 1, 2, 21 and 22. Please; read through our information included in the respective Type Examination; Certificate and the operating and mounting instructions.