High speed coil-forming headstock which works at speeds up to and over 150/180 metres a second and comprises a stator (11) and a rotor (12), a planetary ring (16) being included at the position of greatest reciprocal diameter of the stator (11) and rotor (12) and comprising at least one first bearing (14) towards the rotor (12) and at least one second bearing (15) towards the stator (11), the planetary ring (16) being able to idle and having a limited lengthwise extent and bearing a plurality of pinions (19) arranged in a ring with their axis parallel to the axis of the rotor (12), the pinions (19) meshing with peripheral inner (17) and outer (18) teeth included on the stator (11) and rotor (12) respectively.
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