Basic Knowledge of Rolling Bearings

      Rolling bearings are precision mechanical components that convert sliding friction between a rotating shaft and its housing into rolling friction, thereby reducing frictional losses. A typical rolling bearing consists of four main parts: the inner ring, the outer ring, the rolling elements, and the retainer. The inner ring is designed to fit snugly onto the shaft and rotates together with it; the outer ring fits into the bearing housing and provides support. The rolling elements, held in place by the retainer, are evenly distributed between the inner and outer rings. Their shape, size, and number directly affect the performance and service life of the rolling bearing. The retainer ensures that the rolling elements are evenly spaced, prevents them from falling out, guides their rotation, and provides lubrication.

I. In the specialized manufacturing of rolling bearing components, a large number of bearing-specific machines are employed. For example, steel balls are processed using grinding machines and lapping machines. The specialization is also evident in the production of individual bearing components—for instance, there are specialized steel ball companies that focus exclusively on producing steel balls, as well as miniature bearing factories that specialize in manufacturing tiny bearings. Due to the large-scale production requirements of bearings, it is feasible to utilize advanced machine tools, fixtures, and manufacturing processes, such as CNC machine tools, three-jaw floating chucks, and protective-atmosphere heat treatment. The specialization of automated bearing production has created favorable conditions for the automation of the entire manufacturing process. In production, fully automatic and semi-automatic dedicated and non-dedicated machine tools are widely adopted, and automated production lines are gradually being introduced and expanded. Examples include automated heat treatment lines and automated assembly lines. II. According to their structural types, rolling bearings can be classified as follows: deep groove ball bearings, needle roller bearings, angular contact bearings, self-aligning ball bearings, self-aligning roller bearings, thrust ball bearings, thrust self-aligning roller bearings, cylindrical roller bearings, tapered roller bearings, spherical plain bearings with seats, and many others. Hongyuan Bearing primarily manufactures cylindrical roller bearing series, tapered roller bearings, and thrust angular contact ball bearing series turntable bearings HKLDF.