What is (a) An axle box, journal box, journal bearing, or bushing. (b) A chamber or section of tube in which a valve works; the bucket of a lifting pump called?

box — (Mach) (a) An axle box, journal box, journal bearing, or bushing. (b) A chamber or section of tube in which a valve works; the bucket of a lifting pump. (Webster's 1913.)

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