A, all kinds of bearing main parts processing technology:
1. Processing technology of the ring: the processing of the inner ring and the outer ring of the bearing is different according to the different forms of raw materials or blanks, and the pre-turning process can be divided into the following three types. The whole processing process is: bar or tube (some bars need forging, annealing and normalizing)-turning-heat treatment-grinding.
2. The processing of steel balls is also different according to the state of raw materials. Among them, the process before chipping or polishing can be divided into the following three types, and the process before heat treatment can be divided into the following two types. The whole processing process is: cold stamping of bars or wires (some bars need to be punched and annealed after cold stamping)-chipping, rough grinding, soft grinding or polishing.
3. Processing technology of roller The processing of roller varies according to different raw materials, and the processes 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. Processing technology of cage The processing technology of cage can be divided into the following two categories according to the difference of design structure and raw materials:
(1) Sheet metal → shearing → punching → punching → shaping → pickling or shot blasting or cross polishing → final inspection → rust prevention, packaging → warehousing (to be assembled and assembled).
(2) Processing technology of solid cage: The processing of solid cage varies according to different raw materials or hairiness. 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 broaching and boring)-.
Second, the rolling bearing assembly process:
Rolling bearing parts such as inner ring, outer ring, rolling body and cage. After passing the inspection, enter the assembly workshop for assembly. The process is as follows: demagnetization cleaning of parts → grouping selection of internal and external rolling grooves → sleeve fitting → clearance inspection → riveting cage → final inspection → demagnetization cleaning → antirust packaging → entering the finished product warehouse (boxed and shipped).