There are single row radial Deep groove ball bearing, double row spherical, radial thrust, thrust and thrust to the heart and other structural types. ① single row radial ball bearings: compact, easy to use, and wide application. Mainly used to bear radial load, it can withstand a certain amount of axial load. In the high-speed device, it can also be used to replace the thrust bearing. This Order of the friction is small, extreme high speed, suitable for rigid large double bearing axis.
Structure and composition
Ball bearings are mainly made up of four basic elements: ball, inner ring, outer ring and the cage or retainer. Ball and ring usually high chromium steel, Rockwell hardness of between about 61-65. While maintaining the low hardness compared to the balls and the ring, which material has a metal or metalloid. ball bearing rotation than the ball bearing friction is small, and therefore at the same speed, temperature and friction will be relatively low.
Must pay attention to the slewing bearing.
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