FIELD: transportation.
SUBSTANCE: spinner system in the first version contains shaft spinner installed with possibility to rotate around rotation axis and rotation prevention system mounted on shaft spinner. Spinner system in the second version contains upper spinner, lower spinner, shaft spinner and passive rotation protection system mounted on shaft spinner to minimise uncontrolled spinner rotation around rotation axis. Spinner system in the third version contains upper spinner, lower spinner, shaft spinner and active rotation protection system mounted on shaft spinner to adjust azimuthal location of shaft spinner around rotation axis.
EFFECT: decrease in shaft spinner resistance.
23 cl, 17 dwg
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