working parts
Gears and levers
The working parts of a machine or system are its components that move or function to accomplish the task—gears, pistons, levers, circuits.
The phrase often appears when explaining how something operates: Let me show you the working parts.
Figuratively, it describes the essential elements that make anything function: She understands the working parts of a political campaign.
- machinePower-driven working device
- componentsConstituent parts
- gearsToothed rotating machine parts
- cogsProjections on a wheel
- gear trainSeries of meshed cogs
mechanism · pistons · engine block · engineering · shafts · nuts and bolts · assembly · actuators · organs · body systems · integral · valves · neurons · nerve endings · springs · drivetrain · belts · rotors
- machineryengine, machinery, industrial machinery, motors, engines