The invention discloses a
processing method of an inner ring of a short cylindrical
roller bearing with a
flange-free outer ring, relates to a
processing method of a bearing inner ring, and aims to solve the problem that the stability, the consistency and the
bearing surface quality of the conventional
processing method of the short cylindrical
roller bearing with the
flange-free outer ring cannot meet the requirements of a user on the bearing quality. The method comprises the following steps: carrying out rough turning and fine turning on a bearing inner ring in sequence, and then turning a raceway, an inner chamfer and an outer chamfer, turning an oil groove and drilling two rows of oil holes; heat treatment is conducted, then coarse
grinding is conducted firstly, then fine
grinding is conducted,
tempering is supplemented at high temperature, then oil grooves and oil holes are cleaned, an inner raceway is subjected to final
grinding, acid
pickling is conducted,
hydrogen removal is conducted, and the outer
diameter of the inner ring and the inner
diameter are subjected to final grinding; and respectively carrying out
abrasive flow
machining on the outer surface and the inner surface of the bearing inner ring, then carrying out flaw detection, finely grinding an inner raceway, and submitting inspection. By the adoption of the
machining method, the precision scatter difference of the obtained bearing inner ring is controlled within 0.5
micrometer, the consistency and stability of the
machining method are good, and the machining method is applied to the field of bearings.