Machining method for outer ring of self-aligning roller bearing

The invention relates to a bearing ring machining method, in particular to a self-aligning roller bearing outer ring machining method. The method comprises the steps of soft turning, primary machining of threads and flange end face grooves, sharp edge burr passivation, heat treatment, thread softening, end face rough grinding, flange outer diameter grinding, hard turning of the outer diameter, a roller path and a sealing groove, sharp edge burr passivation, first flaw detection, additional tempering, end face final grinding and outer diameter fine grinding. The machining method comprises the steps of flange and root chamfering, roller path fine grinding, thread final machining, sharp edge burr passivation, positioning groove machining, sharp edge burr passivation, flange end face groove final machining, sharp edge burr passivation and outer diameter final grinding. The end face of one side with the flange is ground; sharp edge burr passivation is carried out; flaw detection is carried out for the second time;