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Dictionary


ball' bear'ing



Mach.
1. a bearing consisting of a number of hard balls running in grooves in the surfaces of two concentric rings, one of which is mounted on a rotating or oscillating shaft or the like.
2. any of the balls so used.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

ballataball boy
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