Because the types, structural types, tolerance grades, technical requirements, materials and batches of rolling bearings are different, their basic production processes are not exactly the same. 1. Processing technology of main parts of various bearings: 1. Processing technology of rings: the processing of inner and outer rings of bearings varies according to the forms of raw materials or blanks, among which the pre-turning process can be divided into the following three types. The whole processing process is as follows: bar or pipe (some bars need forging, annealing and normalizing)-turning-heat treatment-grinding-fine grinding or polishing-final inspection of parts-rust prevention-warehousing (to be assembled). The process before heat treatment can be divided into the following two types. The whole processing process is as follows: cold stamping of bars or wires (some bars need punching annealing after cold stamping)-cutting, rough grinding, soft grinding or polishing-heat treatment-hard grinding-fine grinding-fine grinding or grinding-final inspection. 3. Processing technology of roller The processing of roller is different according to different raw materials, and the process before heat treatment can be divided into the following two types. The whole processing process is as follows: lathing bar or cold heading wire, soft grinding of endless belt string-heat treatment-soft spot string-rough grinding of outer diameter-rough grinding of end face-final grinding of end face-fine grinding. 4. According to the design structure and different raw materials, the processing technology of the cage can be divided into the following two categories: (1) sheet metal → shearing → blanking → stamping → shaping → pickling or shot blasting or crosshair → final inspection → rust prevention, packaging → warehousing (to be assembled) (2) processing technology of the solid cage: processing the solid cage according to the raw materials. Among them, before turning, it can be divided into the following four blank types. The whole processing process is: bar, pipe, forging, casting-turning inner diameter, outer diameter, end face, chamfering-drilling (or hole drawing or boring)-pickling-final inspection-antirust packaging.