FIELD: machine-building.
SUBSTANCE: invention related to machine-building and can be used in bearing production industry for doubled or tripled press forming manufacturing from one-row conical roller bearing external rings. Execute a one piece bar completion by conical diametre. Define a hole diametre form D3 correlation: D3 = D1 + 2 tg β1 (c + b). D1 - one-row conical roller bearings, two neighbouring external rings conical hole minimum diametre, β1 - the smallest form external rings hole cone angle, c - neighbouring ring height, b - distance between neighbouring rings sides. The mentioned above distance is equal to cut off blade width and lathe machining allowance of the neighbouring rings both sides, after their splitting and the following polishing.
EFFECT: increase in production rate, metal consumption ratio and pressed fitting endurance.
2 cl, 3 dwg, 1 ex, 1 tbl
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