FIELD: transport.
SUBSTANCE: invention relates to machine building, particularly, to automotive brakes. Brake disc comprises one-piece body composed of friction circular rim and hub transmitting torque to the entire disc. Circular rim comprises multiple grooves arranged radially relative to disc centre. Preset-width section is located in every said groove. Said sections are located in one plane with the other circular rim part so that path from OD edge to ID edge is composed between two parts located between two opposite sides of circular rim. Every said section in every said groove is defined by web to make a continuous circular path.
EFFECT: reduced wear of brake souse, simplified design, better heat removal.
2 cl, 5 dwg
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