Meaning of BALL BEARING in English

BALL BEARING

— ball-bearing , adj.

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.

[ 1880-85 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .