Cov hom kev hnav hauv cov chaw ua haujlwm feem ntau suav nrog kev hnav khaub ncaws hnav, hnav tawv tawv, hnav khaub ncaws hnav, thermal hnav, theem hloov hnav thiab hydrodynamic hnav.
Khiav-nyob rau hauv hnav yog hnav ntawm machinery nyob rau hauv ib txwm load, ceev thiab lubrication tej yam kev mob. Hom kev hnav no feem ntau txhim kho qeeb thiab tsis tshua muaj txiaj ntsig rau kev ua haujlwm zoo nyob rau lub sijhawm luv.
Cov khoom siv tawv tawv yog vim cov khoom abrasive poob los ntawm qhov nws tus kheej los yog cov khoom nyuaj nkag mus rau hauv lub tshuab cuab yeej los ntawm sab nraud, sib xyaw rau hauv qhov chaw ua haujlwm, thiab raug rau cov neeg kho tshuab txiav lossis sib tsoo, ua rau muaj kev puas tsuaj rau cov khoom, uas muaj qhov hnyav. cuam tshuam rau kev ua haujlwm zoo.
Nrhiav rau pem hauv ntej rau koj qhov kev sab laj yog tias koj muaj lwm yam lus nug