roller bearing

American  

noun

Machinery.

1. a bearing consisting of cylindrical or tapered rollers running between races in two concentric rings, one of which is mounted on a rotating or oscillating part, as a shaft.

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roller bearing British  

noun

1. a bearing in which a shaft runs on a number of hardened-steel rollers held within a cage

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Etymology

Origin of roller bearing

First recorded in 1855–60

Example Sentences

Third, do you know the average timelife of a turbine's roller bearing ?

From New York Times • Sep. 13, 2014

Saltigas feature 14 ball bearings and a roller bearing, which provide the smooth operation necessary to deal with big fish.

From Time Magazine Archive

This box is designed to use the top as the work surface and uses roller bearing drawer slides with a 75-pound capacity each.

From Time Magazine Archive

Henry Holiday Timken Jr., Harvard senior, son of the roller bearing maker, took his first flight in a $70,000 Ford tri-motor plane, the gift of his father.

From Time Magazine Archive

Where the engine and dynamo are on different levels, and the latter is a fixture, recourse must be had to a roller, bearing against the upper part of the belt and capable of screw adjustment.

From Wrinkles in Electric Lighting by Stephen, Vincent