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1 . Ferrule process : the bearing inner and outer rings of the processing of raw materials or blank forms depending differ , which processes the car before processing can be divided into the following three types , the whole process is: bar or tube feeding ( subject to some bar forging and annealing , normalizing ) ---- car ---- grinding heat treatment processing ---- ---- lapping or polishing ---- Part final inspection ---- rust ---- storage ---- ( to be fit suit with >

    2 . Ball of the process , according to the state of the ball in the processing of raw materials also differ , which processes setback before the cut or ball of light can be divided into the following three , before the heat treatment process can be divided into the following two kinds , the whole process is: cold red bar or wire ( red zone and need some bar annealed cold punch ) ---- setback cut , coarse , soft grinding or ball of light ---- Heat Treatment - --- hard grinding mill ---- ---- ---- lapping or polishing final inspection group ---- rust , packaging ---- warehousing < suit to be combined with > .

    3 . Roller roller machining process according to different raw materials vary , which before the heat treatment process can be divided into the following two , the whole process is: bar car after processing or cold heading wire string annulus and Polishing ---- Heat Treatment ---- string soft spots ---- coarse outer diameter ---- roughing end face ---- end face grinding ---- finely grind the outer diameter of the outer diameter ---- final ---- final inspection group ---- rust , packaging ---- storage ( subject to co- suit with > .

    4 . The process maintain the retainer cage depending on the process design of the structure and materials can be divided into the following categories:

    ( 1 ) sheet metal stamping → ??cutting → ??punching → ??→ → shaping and finishing pickling or shot or string light rust → → final inspection , packing → ??warehousing (to be combined with packages )
    ( 2 ) the entity to keep the process frame : solid frame to keep working , according to raw materials or a bad hair differ , of which the first process can be divided into the following four cars rough type, the whole process is: bar, tubing, forgings , castings ---- car inside diameter , outside diameter , face, chamfer ---- drilling ( or broaching , boring ) ---- pickling ---- final inspection ---- rust , packaging ---- warehousing < pending suit together with > .