The constructive form too has shortcomings. Are so difficult to performance of a flute in roller end faces under installation of protective covers. Would be to apply in a bearing product with consolidations more technologically and to provide other ways of protection. The flute under a persistent ring also of a trudnoispolnim also demands the special tool. It would be desirable to toughen landings and to do without ring by means of plugs.
Preparation of a detail - hire (Crewe. It is caused by conditions of production (small-scale, it is close to single). However in the conditions of a mass production would be to produce a detail stamping more technologically.
On operation 015 when processing outer diameter and torets the through passage unbent cutter with a triangular plate from a firm alloy of T15K6, on boring operations - boring with a corner and the plan 45 is applied.