Preparation of bearing routine inspection
Preparation of bearing routine inspection
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Briefly describes the needle roller bearing characteristic
by：Waxing
2020-05-23
Briefly describes needle roller bearing features named origin of the needle roller bearing is because it is composed of needle roller bearings, and what is a needle?
Needle is smaller in diameter, but the length of the roller, a long feature is very fine is very long and the length is more than three times the diameter of the above.
Because the needle of the special structure, so lead to needle roller bearing radial cross section is very small, compared to other bearings, inner structure is definitely want more tightly.
Needle roller bearing is characterized by its equipped with fine and long roller, so the radial structure is compact, its diameter and load capacity at the same time, with other types of bearing outside diameter to a minimum, especially suitable for the limited size of the radial installation supporting results.
Secondly, according to the use of different occasions, can be used without inner ring of the bearing or needle roller and cage components, at this time to suit the bearing surface of the surface of the shaft and the shell hole directly as inner and outer rolling bearing surface, in order to ensure the load capacity and operation performance and you have the same ring bearing, axis or shell hole hardness on the surface of the raceway, the machining accuracy and surface quality should be as a bearing ring raceway.
These bearings can bear radial load only.
All in all, different needle roller bearing, its characteristic and the operation is not the same, we only have full understanding and mastering the characteristic and operation principle, the use of its power to get better and more effective.
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