Balance wheel and Swing of the pendulum

Balance wheel noun - A wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat.

Swing of the pendulum and balance wheel are semantically related. In some cases you can use "Swing of the pendulum" instead a noun phrase "Balance wheel".

Balance wheel and swing of the pendulum are semantically related. You can use "Balance wheel" instead a noun phrase "Swing of the pendulum".