Unducted fan for turbine engine

An unducted fan for a turbine engine, comprising:

• fan blades mounted to turn about their respective axes in radial housings of an annular rotor element, each blade including a root with a cylindrical body engaged from outside in a radial housing and guided to turn about its axis in the housing by first and second rolling bearings,
• wherein the first bearing is carried by an annular rim of the radial inner end of the housing,
• the second bearing is carried by an annular segment of a cylindrical skirt mounted in a groove of the cylindrical body and by a locknut screwed onto the cylindrical skirt of the segment and forming a spacer bearing against the first bearing, the second bearing being covered on the outside by a ring surrounding the cylindrical body of the blade root and including outer dog-clutch teeth co-operating with inner dog-clutch teeth of the housing to retain the ring axially in the housing, and
• blocking means are engaged between the dog-clutch teeth of the housing and between the dog-clutch teeth of the ring to prevent the ring from turning and being extracted axially from the housing.