BPFO

(redirected from Ball Pass Frequency Outer)
AcronymDefinition
BPFOBall Pass Frequency Outer (ball bearings)
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References in periodicals archive ?
BSF, BPFO, and BPFI stand for ball spin frequency, ball pass frequency outer ring, and ball pass frequency inner ring, respectively, in the figure.
m BPFI Ball pass frequency outer. Hz BPFO Ball pass frequency inner.