Bearings Is a support shaft bearing parts, which can lead axis of rotation, can withstand the idle shaft parts, bearings can be divided into
Rolling and plain bearings, in general, refers to the rolling bearing
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Definition of rolling bearings
The operation of the shaft and the sliding friction between the shaft seat into rolling friction, thereby reducing the friction loss of a precision mechanical components
, Called the rolling bearing.
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Characteristics of rolling bearings
Advantages: 1 small frictional resistance, small power consumption, high mechanical efficiency, easy to start;
2, size standard, interchangeable, easy installation and removal, maintenance;
3, compact, light weight, the axial dimension is more narrow;
4, high accuracy, high speed abrasion, long service life;
5, part of the self-aligning bearing with the performance;
6, suitable for mass production, reliable quality, high efficiency
Disadvantages: 1, noise 2, the bearing structure is more complex 3, the high cost of
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The basic structure of rolling bearings
Generally bearing inner ring, outer ring, rolling elements and cage, of which the role of the inner shaft is compatible with, and together with the axis of rotation, the role and the bearing outer ring match, play a supportive role, rolling is with the roll cage of the body evenly distributed between the inner and outer rings, the shape and size and number of direct impact on the performance and life of rolling bearings, roller cage allows uniform distribution, to prevent rolling off, scroll to guide lubricate the body rotation
