Balance wheel and Handwheel

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.

Handwheel and balance wheel are semantically related in flywheel topic. In some cases you can use "Handwheel" instead a noun phrase "Balance wheel", when it comes to topics like fly wheel.

Handwheel noun - A wheel worked by hand.

Balance wheel and handwheel are semantically related in flywheel topic. You can use "Balance wheel" instead a noun "Handwheel", if it concerns topics such as fly wheel.