center wheel

noun

, Horology.

1. the wheel driving the minute and hour hands of a timepiece.

Word History and Origins

Origin of center wheel¹

First recorded in 1880–85

Example Sentences

The center wheel must revolve once in each hour, which is 61⁄2 times faster than the barrel.

From Project Gutenberg

The chief business of the third wheel is to make the fourth turn in the same direction as the center wheel.

From Project Gutenberg

Center StaffThe arbor attached to the center wheel which carries the minute hand.

From Project Gutenberg

Third WheelThe wheel in the train between the center wheel and the fourth wheel.

From Project Gutenberg

This uniformity of freedom will be found absent in cheaper watches; for instance, a center wheel may have 0.02 mm.

From Project Gutenberg