With today's announcement, she has 'set the wheels in motion' for a run for the presidency. [=she has begun to run for president]
You could almost see the 'wheels' turning in his head. [=you could almost see him thinking about how to do something]
They hoped that the tax cuts would 'grease the wheels' of the economy. [=would help the economy work better]
(..) But I... Move it prisoner, we're losing daylight. I agree. Now, we need to find the best set of wheels. I've got a better idea. Follow me! Okay. So we do here is we get the target with a quick fly over. We just the trajectory in the land (..)2008 Bolt