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1. The processes of cylindrical rollerBlank forming - burring or band - soft grinding the raceway surface - soft grinding double - heat treatment - before the coarse grinding roller surface - coarse grinding double - after roughing rolling surface to eventually double end face grinding, fine, end mill rolling surface to super finishing rolling surface, cleaning, drying and final inspection group - oil packing appearance, size.2. The technological process of the tapered rollerBlank forming - burring or band - soft grinding the raceway surface - soft grinding double - heat treatment - coarse grinding roller surface grinding balls - fine grinding roller surface - base - end mill rolling surface - super finishing rolling surface to clean, dry, final inspection group - oil packing appearance, size.The above two kinds of roller crown shape bus bar rolling surface can make it, if convex metric is less than 0.005 mm, generally can be directly in the super finishing rolling surface process;If a convex metric is greater than 0.005 mm, can generally be in the last final rolling surface process grinding out the crown, then superfinishing.3. The technological process of the needleBlank forming - burring - heat treatment - thick, thin, end mill roll surface - super finishing rolling surface polishing or sawdust.For flat and cone head needle, such as blank shape is difficult to guarantee the length size tolerance, it can increase the double end face grinding in the mill rolling process.If you need crown shape bus bar rolling surface, can be directly in the super finishing rolling surface or channeling light process.