Found 2 items, similar to Ball bearings.
English → English
Definition: ball bearing
n : bearings containing small metal balls [syn: needle bearing
English → English
Definition: Ball bearings
(b[add]l), n. [OE. bal, balle; akin to OHG. balla,
palla, G. ball, Icel. b["o]llr, ball; cf. F. balle. Cf. 1st
, n., Pallmall
1. Any round or roundish body or mass; a sphere or globe; as,
a ball of twine; a ball of snow.
2. A spherical body of any substance or size used to play
with, as by throwing, knocking, kicking, etc.
3. A general name for games in which a ball is thrown,
kicked, or knocked. See Baseball
, and Football
4. Any solid spherical, cylindrical, or conical projectile of
lead or iron, to be discharged from a firearm; as, a
cannon ball; a rifle ball; -- often used collectively; as,
powder and ball. Spherical balls for the smaller firearms
are commonly called bullets
5. (Pyrotechnics & Mil.) A flaming, roundish body shot into
the air; a case filled with combustibles intended to burst
and give light or set fire, or to produce smoke or stench;
as, a fire ball; a stink ball.
6. (Print.) A leather-covered cushion, fastened to a handle
called a ballstock; -- formerly used by printers for
inking the form, but now superseded by the roller.
7. A roundish protuberant portion of some part of the body;
as, the ball of the thumb; the ball of the foot.
8. (Far.) A large pill, a form in which medicine is commonly
given to horses; a bolus. --White.
9. The globe or earth. --Pope.
Move round the dark terrestrial ball. --Addison.
10. (Baseball) A pitched ball, not struck at by the batter,
which fails to pass over the home plate at a height not
greater than the batter's shoulder nor less than his knee
(i.e. it is outside the strike zone). If the pitcher
pitches four balls before three strikes are called, the
batter advances to first base, and the action of pitching
four balls is called a walk.
[Webster 1913 Suppl. +PJC]
10. a testicle; usually used in the plural. [vulgar]
11. pl. courage; nerve. [vulgar]
Ball and socket joint
, a joint in which a ball moves within
a socket, so as to admit of motion in every direction
within certain limits.
, a mechanical device for lessening the
friction of axle bearings by means of small loose metal
, a cartridge containing a ball, as
distinguished from a blank cartridge, containing only
, a faucet or valve which is opened or closed by
the fall or rise of a ball floating in water at the end of
, a pivot of a spherical form, which permits
lateral deflection of the arbor or shaft, while retaining
the pivot in its socket. --Knight.
, the lever used in a ball cock.
Ball of the eye
, the eye itself, as distinguished from its
lids and socket; -- formerly, the pupil of the eye.
(Mach.), a contrivance by which a ball, placed
in a circular cup with a hole in its bottom, operates as a
(Mining), a sort of iron ore, found in loose
masses of a globular form, containing sparkling particles.
, or Three golden balls
, a pawnbroker's sign
on the ball
alert; competent and knowledgeable.
to carry the ball
to carry on the task; to assume the
to drop the ball
to fail to perform as expected; to fail to
live up to a responsibility.
Syn: See Globe
1. The manner in which one bears or conducts one's self;
mien; behavior; carriage.
I know him by his bearing. --Shak.
2. Patient endurance; suffering without complaint.
3. The situation of one object, with respect to another, such
situation being supposed to have a connection with the
object, or influence upon it, or to be influenced by it;
hence, relation; connection.
But of this frame, the bearings and the ties,
The strong connections, nice dependencies. --Pope.
4. Purport; meaning; intended significance; aspect.
5. The act, power, or time of producing or giving birth; as,
a tree in full bearing; a tree past bearing.
[His mother] in travail of his bearing. --R. of
(a) That part of any member of a building which rests upon
its supports; as, a lintel or beam may have four
inches of bearing upon the wall.
(b) The portion of a support on which anything rests.
(c) Improperly, the unsupported span; as, the beam has
twenty feet of bearing between its supports.
(a) The part of an axle or shaft in contact with its
support, collar, or boxing; the journal.
(b) The part of the support on which a journal rests and
8. (Her.) Any single emblem or charge in an escutcheon or
coat of arms -- commonly in the pl.
A carriage covered with armorial bearings.
(a) The situation of a distant object, with regard to a
ship's position, as on the bow, on the lee quarter,
etc.; the direction or point of the compass in which
an object is seen; as, the bearing of the cape was W.
(b) pl. The widest part of a vessel below the plank-sheer.
(c) pl. The line of flotation of a vessel when properly
trimmed with cargo or ballast.
. See under Ball
To bring one to his bearings
, to bring one to his senses.
To lose one's bearings
, to become bewildered.
To take bearings
, to ascertain by the compass the position
of an object; to ascertain the relation of one object or
place to another; to ascertain one's position by reference
to landmarks or to the compass; hence (Fig.), to ascertain
the condition of things when one is in trouble or
Syn: Deportment; gesture; mien; behavior; manner; carriage;
demeanor; port; conduct; direction; relation; tendency;