Bearings that rely on rolling friction to work are called rolling bearings. A typical rolling bearing is usually composed of 4 components: inner ring, outer ring, rolling element and cage. The inner ring is installed on the journal, and the outer ring is installed in the bearing hole of the frame. Usually the inner ring rotates with the journal and the outer ring is fixed, but there are also cases where the outer ring rotates and the inner ring is fixed. When the inner and outer rings rotate relative to each other, the rolling elements roll in the raceways of the inner and outer rings. The function of the cage is to evenly space the rolling elements. The rolling element is an indispensable part to form rolling friction in the bearing. Commonly used rolling elements are balls, short cylindrical rollers, long cylindrical rollers, spiral rollers, tapered rollers, spherical rollers and needle rollers.
Rolling bearings are easy to use and maintain, reliable in operation, good in starting performance, and high in carrying capacity at medium speeds. Compared with sliding bearings, rolling bearings have larger radial dimensions, poorer shock absorption capacity, lower life at high speeds, and louder noises.
The failure forms of rolling bearings are fatigue pitting and plastic deformation. To prolong its service life and maintain its rotation accuracy, the bearings should be maintained in time during the operation of the centrifugal pump, reasonable lubrication and sealing should be adopted, and the lubricating oil and sealing should be checked frequently .
Suzhou Xinhao Bearing Co., Ltd. has been focusing on bearings for more than 30 years. The company mainly produces and sells various radial needle roller bearings and thrust needle roller bearings, one-way bearings, solid ring bearings, stamping ring bearings and other series of products and their parts. Products are currently widely used in automotive air-conditioning compressors, automotive gearboxes, automotive engine rocker arms, automotive gearboxes, intelligent logistics and construction machinery and other fields.
