drive wallpaperProviderpixabayResolution4000 × 5070Aspect ratio0.79:1AuthorThomasWolterSourceOpen original page Download wallpaper Available sizesPreview118 × 150Web505 × 640Large4000 × 5070Tagsdrivegeargearstechnologyorganizationindustrytransmissioncollectivetechnical devicesmechanical