For full journal bearings impulse capacity, as “consumed” typically during the “dominant quasi-squeeze interval” of severe duty cycles, has proved itself a design criterion much more significant than the conventional one of maximum or time-averaged load capacity. This is first shown for assumedly perfectly rigid bearing/journal systems which, however, are rather unrealistic. Thereupon the author proceeds with illustrating the promising potentialities for promoting impulse capacity that are inherent in “flapping action”, the generalized kind of squeezing engendered by the elastic and pulsating distortion of the circumferential contour of the bearing surface.

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