balance staff

American  

noun

Horology.

1. a pivoted axle or shaft on which the balance is mounted.

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Etymology

Origin of balance staff

First recorded in 1880–85

Example Sentences

The company acknowledged it was an "emotive topic" but said it had to balance staff and shareholder needs.

From BBC • Jan. 13, 2022

Next acknowledged it was an "emotive topic" but said it had to balance staff and shareholder needs.

From BBC • Jan. 13, 2022

Five jewels are found in most instances, two cap jewels and two hole jewels for the balance staff and a jeweled impulse pin.

From The Auburndale Watch Company First American Attempt Toward the Dollar Watch by Battison, Edwin A.

New balance staff, hole jewel, cap jewel, glass, and cleaned.

From Rules and Practice for Adjusting Watches by Kleinlein, Walter J.

The early escapements were all frictional escapements, i.e., the balance staff was never free from the influence of the train.

From Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology by Anonymous