IPA: /ˈwiːlˌwɜːrk/
KK: /ˈwiːlˌwɜrk/
A system of gears and wheels that work together in a machine or device to create movement or perform a function.
The clock's wheelwork is intricate and allows it to keep accurate time.
Wheelwork → The word is formed from "wheel" (from Old English "hwēol", meaning a circular object that revolves) and "work" (from Old English "weorc", meaning activity or labor). Together, these parts describe the mechanism or system of wheels working together.
Think of a circular object ('wheel') that is involved in some kind of activity or labor ('work') — that's what wheelwork refers to.
No commonly confused words.