ball-bearing
1ball 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]… …
2ball bearing — ► NOUN 1) a bearing in which the parts are separated by a ring of small metal balls which reduce friction. 2) a ball used in such a bearing …
3ball bearing — ball bearings also ball bearing N COUNT Ball bearings are small metal balls placed between the moving parts of a machine to make the parts move smoothly …
4ball bearing — n. 1. a bearing in which the moving parts revolve or slide on freely rolling metal balls so that friction is reduced 2. any of such metal balls …
5ball bearing — n 1.) small metal balls that move in a ring, to make a part inside a machine turn more easily 2.) one of these metal balls …
6ball bearing — ball ,bearing noun count one of several small hard metal balls that are used between moving parts of a machine to help the parts move smoothly …
7Ball bearing — For individual balls that are sometimes called ball bearings , see Ball (bearing). Working principle for a ball bearing …
8ball bearing — noun bearings containing small metal balls • Syn: ↑needle bearing, ↑roller bearing • Hypernyms: ↑bearing * * * noun, pl ⋯ ings [count] 1 : a part of a machine in which another part (such as a metal pole) turns easily ◇ A ball bearing is made up… …
9ball bearing — UK / US noun [countable] Word forms ball bearing : singular ball bearing plural ball bearings one of several small hard metal balls that are used between moving parts of a machine to help the parts move smoothly …
10ball-bearing — see ball bearing …
