iron wheel

abstract aggregate axle background bearings boxcar brown cargo chassis corroded corrosion decay decayed derail detail equipment frame grunge grungy heavy hubs industrial industry iron junk machine machinery maintenance mechanical metal motor old oxidation oxidized parts patterns rail railroad railroads railway ready repair round rust rusted rusting rusty scrap scrapyard spare sprocket steel stock storage stored surface textured textures timeworn track tracks train trains transportation unit vertical waiting weathered wheel wheels work workshop worn yard