Coupling torque rating does not match application requirements?

2022-06-25 09:00

Insufficient consideration of torque factor in sizing often results in a coupling not performing adequately. When designing and selecting, not only the torque in the steady state of the system should be considered, but also the peak torque should be taken into account, especially when the torque changes greatly during the start-stop phase. Torsional compliance factors may also be considered in some cases to absorb shock loads and handle peak torques. Different design types of flexible couplings have different static torque ratings. For example, a double-diaphragm coupling will typically provide 15-20% more static torque rating than an acetal Oldham coupling, all other application conditions being equal and met.

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