The wheels were made like chariot wheels; their axles, rims, spokes, and hubs were all of cast metal.
KJV
And the work of the wheels [was] like the work of a chariot wheel: their axletrees, and their naves, and their felloes, and their spokes, [were] all molten.
ASV
And the work of the wheels was like the work of a chariot wheel: their axletrees, and their felloes, and their spokes, and their naves, were all molten.