Raws li ib qho tseem ceeb ntawm lub zog cia tivthaiv, kauv springs yog dav siv nyob rau hauv daim ntaub ntawv uas yuav tsum tau du zog thiab compact qhov chaw. Nyob rau hauv precision machinery, lawv muab ib tug tas mus li tsav torque rau lub sij hawm mechanisms, xyuas kom meej lub sij hawm ceev; nyob rau hauv cov khoom siv kev nyab xeeb, lawv ua hauj lwm raws li qhov chaw tsav xwm ceev, ua rau lub tshuab ua haujlwm tam sim ntawd thaum muaj hluav taws xob tsis ua hauj lwm lossis lwm yam ua haujlwm tsis zoo; thiab nyob rau hauv ntau yam servo mechanisms, lawv yog siv los sib npaug loads, compensate rau backlash, los yog muab qhov nro tas li.
Lawv tus nqi yog nyob rau hauv lawv txoj haujlwm ntsiag to thiab txhim khu kev qha nyob rau hauv "kev ua haujlwm sab hauv" ntawm cov khoom siv, hloov cov khoom siv hluav taws xob sib cuam tshuam mus rau hauv cov zis tas mus li, lossis ib ntus khaws cia ntau dhau rau cov kev xav tau uas tsis tau pom dua. Qhov kev muaj peev xwm rov faib hluav taws xob nyob rau lub sijhawm tso cai rau kev yooj yim ntawm cov qauv thiab kev txhim kho kev ua haujlwm ntawm ntau lub tshuab tshuab.
