What are the structure NMB bearing cage? Install what technical requirements?

What are the structure NMB bearing cage? Install what technical requirements? NMB bearing is now one of the most widely used bearing in industrial products, they typically bear radial load, and can only carry axial load very few, suitable for high speed working environment. In case some require low speed ( Such as precision instruments) NMB bearings need to improve the accuracy to meet the requirements. NMB bearing cage structure: NMB bearings commonly used cage has a crown retainers and stamping steel ribbon cage, including crown bearing cage for smaller size, wave form cage for large size bearings, made of synthetic resin or plastic cage is commonly used in ultra high speed applications. In recent years, plastic crown retainer, because of the advantages of low torque and low noise is applied to all kinds of miniature bearing. 1, the ribbon cage: made up by claws and no claw, most of the 304 or 316 stainless steel material is qualitative, suitable for medium speed operation occasion. 2, crown cage: steel ball assembly load special ball mouth, low-speed operation environment has the starting torque is small, the advantages of flexible rotation at low speed. 3, phenolic cage: suitable for high speed, has the self-lubricating function, widely used in dental drill bearings and other high-speed products. NMB bearing installation technical requirements: 1, with the code of the end face of the rolling bearing shall be installed along the direction of visible and so that to be the time when replacement model check. 2, the steps of the journal or shell hole arc radius should be less than the radius of the circular arc of the corresponding to the bearing. 3, bearing installed on the shaft and bearing hole, should not be skewed. 4, in the coaxial two bearings, there must be a bearing with axial thermal produced when axis movement. 5, rolling bearing assembly, it must be strictly prevent dust foreign body into the bearing. 6, after assembly, the bearing should be flexible rotation, low noise, working temperature is generally not more than 65 ° C.