51Թ

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ball bearing

noun

Machinery.
  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.


ball bearing

noun

  1. 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. a metal ball, esp one used in such a bearing
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ball bearing

  1. A ring-shaped track containing hard metal balls that roll freely, used to reduce friction where a rotating element (such as an axle) is attached to a fixed point.
  2. A hard ball used in such a track.
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Other 51Թ Forms

  • -𲹰iԲ adjective
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51Թ History and Origins

Origin of ball bearing1

First recorded in 1880–85
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Example Sentences

Examples have not been reviewed.

They also found an air pistol, an SS-style skull mask, goggles and a respirator, fighting gloves with hardened knuckles, pellets, ball bearings, and hunting tips for crossbow arrows.

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They said that a slingshot and ball bearings were found on his property, which was on the same block where the crimes were carried out.

From

For about 10 years, police said in a statement, King terrorized the neighborhood by shooting metal ball bearings with a slingshot, breaking house windows, car windshields and nearly striking neighbors themselves.

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The 81-year-old man is accused of firing ball bearings from a slingshot at dozens of local homes, breaking windows and narrowly missing people.

From

Residents of North Enid Avenue in Azusa, Calif., would find a broken window in their house or car and a telltale ball bearing nearby.

From

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