Mill bearing manufacturing technology

Development of oil film Four-Row Taper Roller Bearing main parts, began in the late 1950s, in the case of a no pattern, nor information, three non-proprietary equipment carried. Development of oil film bearing the main parts, and easy, from material selection, process route, processing methods to special tooling design and manufacturing has a set of procedures. From the choice of materials, taking into account the friction pairing sleeve material, drogue process of forging, steel sleeve and liner combination of process steel sleeve friction material; from the process line, to meet the cone, bush of the technical requirements, but also use the existing processing equipment, which in itself requires a good combination of theory and practice, for example, the inner surface of the steel jacket of how physical (including machining) and chemical treatment in order to increase the binding force ; in the processing method, we know, it is the civilian liner sleeve and the highest precision, surface roughness sleeve Ra0.05μm (bush is Ra0.2μm), high precision geometric deformation is difficult to control, surface roughness low, the need for super-finishing, the surface does not allow multiple prism, spiral, chatter and the like; design and manufacture of special tooling, is also very important, it is to achieve processing methods to ensure that critical machining accuracy.
Early 1960s, completed the development of the film Four-Row Cylindrical Roller Bearing the main parts of general machine tools manufacturing. The late 1960s, Taiyuan Heavy Machinery Factory built a rolling mill oil film bearing specialized production workshop, and began manufacturing rolling mill oil film bearing of the whole of the New.