cannon box

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English

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Noun

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cannon box (plural cannon boxes)

  1. (mechanical engineering) A type of enclosure for axle bearings.
    • 1959 June, “The first "Peak" class 2,300 h.p. diesel-electric locomotive for B.R.”, in Trains Illustrated, page 296:
      The outermost non-driven axle forms a pony truck within the bogie frame, with its bearings in a cannon box.