A device for controlling the turning of an object , said device comprising - a shaft having a hollow cylindrical shape with a central axis and a circumferential wall enclosing a first space , - a sleeve having a hollow cylindrical shape with a circumferential wall , said sleeve being arranged so that at least a portion of its circumferential wall encloses said shaft along at least a portion of the axial extension of said shaft , forming a second space between said shaft and said sleeve , said sleeve being axially displaceable and rotationally locked in relation to said shaft , and axially and rotationally lockable in relation to said object to be turned , whereby movement of the sleeve is transmittable to movement of the object , - a housing comprising means for rotating the shaft about the central axis , said shaft being axially locked in relation to said housing , said housing further comprising at least one inlet for a lubricant , - a lubricant collector for collecting said lubricant , wherein said circumferential wall of said shaft has at least a first through hole , extending from said first space to said second space , and said circumferential wall of said sleeve has at least a second through hole , for providing the second space in fluid communication with the lubricant collector , wherein said housing is in fluid communication with said second space , so that the lubricant can flow from the housing to said second space , and wherein said first space is pressurizeable, for causing the lubricant in said second space to be displaced through said second through hole , and collected in said lubricant collector . - a shaft having a hollow cylindrical shape with a central axis and a circumferential wall enclosing a first space , - a sleeve having a hollow cylindrical shape with a circumferential wall , said sleeve being arranged so that at least a portion of its circumferential wall encloses said shaft along at least a portion of the axial extension of said shaft , forming a second space between said shaft and said sleeve , said sleeve being axially displaceable and rotationally locked in relation to said shaft , and axially and rotationally lockable in relation to said object to be turned , whereby movement of the sleeve is transmittable to movement of the object , - a housing comprising means for rotating the shaft about the central axis , said shaft being axially locked in relation to said housing , said housing further comprising at least one inlet for a lubricant , - a lubricant collector for collecting said lubricant , wherein said circumferential wall of said shaft has at least a first through hole , extending from said first space to said second space , and said circumferential wall of said sleeve has at least a second through hole , for providing the second space in fluid communication with the lubricant collector , wherein said housing is in fluid communication with said second space , so that the lubricant can flow from the housing to said second space , and wherein said first space is pressurizeable, for causing the lubricant in said second space to be displaced through said second through hole , and collected in said lubricant collector . <EOS>