Abstract: The present invention relates to a rotating mechanism with lockable gear that provides safer and more functional mobility within the vehicle for the mechanisms for the display systems mechanism placed in wheeled or tracked military vehicle. The present invention particularly relates to a rotating mechanism with lockable gear comprised of a vertical axial rotating mechanism (100), which rotates display systems placed in wheeled or tracked military vehicles around the vertical axis Y, a horizontal axial rotating mechanism (200), which rotates display systems placed in wheeled or tracked military vehicles around the horizontal axis X and a locking mechanism (300), which immobilizes movement of the display systems by preventing its mobility.