balance-wheel

The watchmaker carefully adjusts the balance-wheel inside the timepiece.

Definition

1. Noun:
   • Horology: A "balance wheel" is a wheel that regulates the beat in a mechanical timepiece, such as a watch or clock. It oscillates back and forth to control the movement of the gears and ensure accurate timekeeping.
   • Mechanical engineering: In certain machines, a "balance wheel" is a flywheel or rotating mass used to steady motion or reduce vibration by counterbalancing irregularities.

Usage Examples

• Horology:

  • The watchmaker carefully adjusted the balance wheel to improve the watch's accuracy. (The oscillating wheel that controls the timing mechanism.)
  • A broken balance wheel can cause a clock to run too fast or too slow. (A damaged regulating component.)

• Mechanical engineering:

  • The engine's balance wheel reduces vibrations during operation. (A rotating mass that stabilizes motion.)

Advanced Usage

• "Balance wheel of society": A metaphorical use referring to a stabilizing or moderating force within a community or system.
  • The middle class acts as a balance wheel of society, preventing extreme political swings. (A stabilizing element.)

Variants and Related Words

• Balance (n): a state of equilibrium; also a device for weighing.
  • She maintained her balance on the tightrope. (Physical stability.)
• Wheel (n): a circular object that revolves on an axle.
  • The wheel of the cart was made of wood. (A rotating component.)

Synonyms

• Regulator: a device that controls or maintains a steady rate.
  • The regulator in a clock ensures even timekeeping. (Similar to a balance wheel.)
• Flywheel: a heavy rotating wheel used to store energy and smooth out motion.
  • The flywheel in an engine reduces fluctuations in speed. (Mechanically similar.)

Related Idioms

• "Put a spoke in someone's wheel": to obstruct or hinder someone's plans.
  • His sudden resignation put a spoke in the project's wheel. (It caused a delay or problem.)