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The balance spring or hairspring in mechanical watches is a fine, spiral-shaped torsion spring that pushes the balance wheel back toward its center position as it rotates back and forth. The balance wheel and spring function similarly to the torsion pendulum above in keeping time for the watch.
A torsion spring is a spring that works by twisting; when it is twisted about its axis by an angle, it produces a torque proportional to the angle. A torsion spring's rate is in units of torque divided by angle, such as N·m/rad or ft·lbf/degree. The inverse of spring rate is compliance, that is: if a spring has a rate of 10 N/mm, it has a ...
It is a weighted wheel that rotates back and forth, being returned toward its center position by a spiral torsion spring, known as the balance spring or hairspring. It is driven by the escapement , which transforms the rotating motion of the watch gear train into impulses delivered to the balance wheel.
The balance spring is a fine spiral or helical torsion spring used in mechanical watches, alarm clocks, kitchen timers, marine chronometers, and other timekeeping mechanisms to control the rate of oscillation of the balance wheel. The balance spring is an essential adjunct to the balance wheel, causing it to oscillate back and forth.
The Lake Erie city of Ashtabula, Ohio, near the Pennsylvania border had 27 inches. Parts of Pennsylvania saw more than 20 inches of snow over the weekend. Gabe Hauari is a national trending news ...
Mangione's writings, obtained by ABC News, claimed that the U.S. has the most expensive health care system in the world, but ranks about No. 42 in life expectancy.
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