16 COUPLINGS, CLUTCHES, AND BRAKES – Basic
2021-7-29 · Rigid couplings should be used only when the alignment of the two shafts can be maintained very accurately, not only at the time of installation but also during operation. If significant angular, radial or axial misalignment occurs, stresses that are difficult to predict and that may lead to early failure due to fatigue will be induced in the shafts.
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