ball bearing

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ball bearing

n. Abbr. bb
1. A friction-reducing bearing consisting essentially of a ring-shaped track containing freely revolving hard metal balls against which a rotating shaft or other part turns.
2. A hard ball used in such a bearing.

ball bearing

n
1. (Mechanical Engineering) a bearing consisting of a number of hard steel balls rolling between a metal sleeve fitted over the rotating shaft and an outer sleeve held in the bearing housing, so reducing friction between moving parts while providing support for the shaft
2. (Mechanical Engineering) a metal ball, esp one used in such a bearing

ball′ bear′ing


n.
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.
2. a ball so used.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ball bearing - bearings containing small metal ballsball bearing - bearings containing small metal balls
bearing - a rotating support placed between moving parts to allow them to move easily
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In his other 'crush' videos, which drew millions of views, his machine has obliterated a mighty bearing ball, silver coins, two repelling neodymium magnets, non-Newtonian fluid and reinforced sand, among others.
The sideshaft design is based around opposing S-curve bearing ball tracks that allow steering angles of up to 50[degrees], with an option for 52[degrees] for vehicles in need of a tighter turning circle.
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