Bearings are an important part of contemporary machinery. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Its accuracy, performance, longevity and reliability play a decisive role in the accuracy, performance, longevity and reliability of the mainframe.
According to the friction properties of moving components, bearings can be divided into rolling bearings and sliding bearings. Among them, the rolling bearing has been standardized and serialized, but its radial size, vibration and noise are larger than the sliding bearing, and the price is also high.
Rolling bearings generally consist of an outer ring, an inner ring, a rolling element and a cage. According to the shape of the rolling element, the rolling bearing is divided into two categories: ball bearing and roller bearing.
The needle roller bearing is equipped with a thin and long roller, so the radial structure is compact, its inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest, especially suitable for radial mounting size limited support structure.
Needle roller bearings can be selected from bearings without inner rings or needle roller and cage assemblies depending on the application. The journal surface and the housing hole surface that match the bearing directly serve as the inner and outer rolling surfaces of the bearing to ensure the load capacity. The running performance is the same as that of the ferrule bearing. The hardness of the shaft or shell hole raceway surface, machining accuracy and surface quality should be matched with the bearing ring.
We are one of the leading bearing manufacturers and suppliers in China. The high quality bearing with competitive price is acceptable from our factory. Also, customized service is available.
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