FIELD: machine tool manufacture. SUBSTANCE: head comprises body 1, thrust center loaded by spring 16, drive pins 3 self-aligned with driven shaft end portion in axial direction by means of hydroplast 4 which fills recesses 5, space 13 disposed between disc 9 and internal surface of body, and channels 14. Angular orienting of drive pins is achieved by making disc recesses in the form of radial slots 8 whose sides are in contact with diametrically opposite flats 7 provided on ends of drive pins. EFFECT: improved design. 2 dwg
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