Bearing

[1] The area of a unit in which the contacting surface of a revolving part rests in order to minimize wear and friction between two surfaces.
[2] The horizontal angle between any survey line and a given reference direction
[3] Angle of direction in horizontal plane in degrees from true north, e.g., of an arriving radio wave as determined by a direction-finding system. Also azimuth.
[4] An antifriction reducing device that is usually found between two moving parts. The babbitt bearings found between the connecting rod and the crankshaft are lubricated and cushioned with oil, and the front wheel bearings must be repacked with grease at regular intervals. Bearings can be ball or roller type.
See also angle bearing, antifriction bearing, ball bearing, big-end bearing, bridge bearing, camshaft bearing, carrier bearings, clutch pilot bearing, clutch release bearing, clutch throwout bearing, clutch thrust bearing, connecting rod bearing, con rod bearing, friction bearing, insert bearing, jet bearing, main bearing support, main bearing, needle bearing, pilot bearing, plain bearing, precision insert bearing, quill-type bearing, quill bearing, radial bearing, re-metalling the bearings, release bearing, rod bearing, roller bearing, rolling bearing, sealed bearing, shell bearing, sleeve bearing, small end bearing, spigot bearing, split bearing, tapered roller bearing, throw-out bearing, throwout bearing, thrust bearing, timken bearing, timken roller bearing, wheel bearings