Self-adjusting adj. (Mach.) Capable of assuming a desired position or condition with relation to other parts, under varying circumstances, without requiring to be adjusted by hand; said of a piece in machinery.
Self-adjusting bearing (Shafting), a bearing which is supported in such a manner that it may tip to accomodate flexure or displacement of the shaft.
... the head, C, combined with the magnet so as to be self-adjusting in relation to the armature, substantially as ... — Scientific American, Vol. 17, No. 26 December 28, 1867 • Various
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