Are used to reduce friction and wear while supporting rotating elements. For a motor it must provide a relatively rigid support for the output shaft. The bearing acts as the connection point between the rotating and stationary elements of a motor. There are various types such as roller, ball, sleeve (journal), and needle. The ball bearing is used in virtually all types and sizes of electric motors. It exhibits low friction loss, is suited for high speed operation and is compatible in a wide range of temperatures. There are various types of ball bearings such as open, single shielded or sealed. Reliance Electric offers a unique PLS bearing system.
Similar to Bushings, but with moving parts Airsoft AEGs contain Bushings that hold the axle for each gear in the gearbox. These standard nylon bushings are usually not very strong and can be replaced with Bearings that will provide less friction, less resistance and more speed in the AEG gearbox. Bearings can be quite expensive though and the 7mm bearings are more reliable then the standard 6mm bearings.
Sleeve: Common in home-appliance motors. Ball Bearings: Used when high shaft load (radial or axial thrust load) capacity is required. Ball bearings are usually used in industrial and agricultural motors. Occasionally, roller bearings may be used on larger horsepower motors for maximum radial load capacity.
Directions in three Dimensional space such as 230 on 123--- 230 being the horizontal direction (azimuth) in degrees (0-360) and the second number is the vertical angle or Zenith expressed in 0-360 degrees.