Rotary seal ring

The utility model belongs to the technical field of it is sealed. Set up the axial reinforcing structure that is higher than sealing ring friction terminal surface of circumference equipartition on sealing ring friction terminal surface, improve the the stiffness of sealing ring and the ability of resisting heat altered shape, realize separation between sealing ring and sealed slot, effectively avoid the friction terminal surface friction of sealing ring, reduce the friction temperature rise, reduce sealing ring heat altered and appear. The utility model relates to a rotary seal ring, its characterized in that: on friction terminal surface (2) of sealing ring (1) circumference equipartition n axial trompil (3), mate protrusion in reinforcing structure (4) of sealing ring friction terminal surface, the trompil of embedding axial, n is for being not less than 4 natural number. The utility model relates to a rotary seal ring for rotary gap under the high PV value is sealed, simple structure, and the designability is strong, and frictional resistance is little, and long service life is applicable to fluid tight technical field, specially adapted wet clutch high -pressure system.