Ball bearing
a bearing consisting of a number of hard b-lls running in grooves in the surfaces of two concentric rings, one of which is mounted on a rotating or oscillating shaft or the like.
any of the b-lls so used.
historical examples
so that they cannot be injured by waste oil from the ball bearing, or by water or snow.
the traveling engineers’ -ssociation anonymous
the man spun around as if mounted on a ball bearing and pulled by strings.
pursuit lester del rey
the same principle has been applied to mechanics in the ball bearing.
farm engines and how to run them james h. stephenson
the work, which is the cone for a ball bearing, is shown at a by the dotted lines and also by the detail view to the right.
turning and boring franklin d. jones
when you get into the movement of a ball bearing disk, your body is free to move.
warren commission (5 of 26): hearings vol. v (of 15) the president’s commission on the -ss-ssination of president kennedy
a pilot box-tool for finishing another type of ball bearing cone is shown at b.
turning and boring franklin d. jones
it is a board that is on a pivot, a ball bearing, and it has a tendency to give you certain exercises in twisting your body.
warren commission (5 of 26): hearings vol. v (of 15) the president’s commission on the -ss-ssination of president kennedy
oil the sweeper regularly about once a month by putting one drop of oil on the ball bearing on the hub of each wheel.
mechanical devices in the home edith louise allen
noun
a bearing consisting of a number of hard steel b-lls 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
a metal ball, esp one used in such a bearing
ball bearing
a ring-shaped track containing hard metal b-lls that roll freely, used to reduce friction where a rotating element (such as an axle) is attached to a fixed point.
a hard ball used in such a track.
Read Also:
- Ball-carrier
the offensive player having the ball and attempting to gain ground. historical examples then ball-carrier remembered his parents and went back to them. the brown fairy book andrew lang now ever since ball-carrier’s death the family had been very poor, and often could not get enough to eat. the brown fairy book andrew lang the […]
- Ball cock
a device for regulating the supply of water in a tank, cistern, or the like, consisting essentially of a valve connected to a hollow floating ball which by its rise or fall shuts or opens the valve. historical examples on top of the generator is a tipping water-bucket i supplied with water through a ball […]
- Ball foot
a ball-like turned foot, used especially in the 16th and 17th centuries. historical examples the bow-legged chair, often with claw and ball foot, came into use in the beginning of the eighteenth century. customs and fashions in old new england alice morse earle there were also several variations on the claw and ball foot. furnishing […]
- Ball fern
a feathery fern, davallia trichomanoides, of malaysia, having rhizomes covered with toothed scales.
- Ballflower
a medieval english ornament suggesting a flower of three or four petals enclosing and partly concealing a ball. noun (architect) a carved ornament in the form of a ball enclosed by the three petals of a circular flower