1 High hnav tsis kam

Thaum lub dov bearing ua haujlwm ib txwm, ntxiv rau kev sib txhuam dov, nws kuj tseem nrog zawv zawg kev sib txhuam.Qhov tseem ceeb ntawm zawv zawg kev sib txhuam yog: qhov chaw sib cuag ntawm lub dov lub caij thiab txoj kev sib tw, qhov chaw sib cuag ntawm lub dov lub caij thiab lub tawb hnab tshos, nruab nrab ntawm lub tawb thiab lub nplhaib qhia tav, thiab cov menyuam kawg nto thiab lub nplhaib qhia tos nruab nrab ntawm cov phab ntsa.Qhov muaj nyob ntawm zawv zawg kev sib txhuam hauv dov bearings inevitably ua rau hnav ntawm cov kabmob.Yog tias qhov hnav tsis kam ntawm cov kabmob steel tsis zoo, cov kabmob dov yuav poob nws qhov tseeb ntxov ntxov vim hnav lossis txo qhov kev sib hloov raug, uas yuav ua rau muaj kev vibration ntawm cov kabmob thiab txo nws txoj sia.Yog li ntawd, cov bearing steel yuav tsum muaj siab hnav tsis kam.

2High contact fatigue zog

Kev tiv thaiv kev qaug zog tsis ua haujlwm yog daim ntawv tseem ceeb ntawm kev coj tus kheej tsis ua haujlwm.Thaum lub rolling bearing nyob rau hauv lub lag luam, lub ntsiab dov dov ntawm cov raceways ntawm lub puab thiab sab rings ntawm cov kabmob, thiab qhov chaw sib cuag bears ib ntus alternating loads, uas muaj peev xwm ncav cuag ntau pua txhiab zaus ib feeb.Nyob rau hauv qhov rov ua dua ntawm kev hloov pauv kev ntxhov siab, qhov sib cuag ntawm qhov Fatigue peeling tshwm sim.Thaum cov kabmob dov pib tev tawm, nws yuav ua rau cov kabmob vibrate thiab ua kom lub suab nrov.Kev ua haujlwm kub yuav nce siab, ua rau cov kabmob puas.Hom kev puas tsuaj no hu ua hu rau qaug zog puas tsuaj.Yog li ntawd, cov hlau rau dov bearings yog yuav tsum tau muaj kev sib cuag qaug zog zog.

3 siab elastic txwv

Thaum cov kabmob dov ua haujlwm, vim tias qhov chaw sib cuag ntawm cov khoom siv dov thiab cov kev sib tw ntawm lub nplhaib me me, qhov kev sib cuag ntawm qhov chaw sib cuag yog qhov loj heev thaum cov kabmob yog nyob rau hauv load, tshwj xeeb tshaj yog thaum nws nyob rau hauv ib tug loj load.Txhawm rau tiv thaiv cov yas deformation ntau dhau nyob rau hauv kev sib cuag nrog kev ntxhov siab, poob ntawm cov kabmob raug lossis cov kab nrib pleb, cov kabmob hlau yuav tsum muaj kev txwv siab.

4 haum hardness

Hardness yog ib qho tseem ceeb qhia ntawm dov bearings.Nws muaj kev sib raug zoo nrog cov khoom sib cuag qaug zog, hnav tsis kam, thiab elastic txwv, thiab cuam tshuam ncaj qha rau lub neej ntawm dov bearings.Lub hardness ntawm cov kabmob feem ntau yog txiav txim los ntawm tag nrho cov teeb meem ntawm cov kabmob load hom thiab qhov loj, bearing loj thiab phab ntsa thickness.Lub hardness ntawm dov bearing steel yuav tsum tsim nyog, loj dhau los yog me me yuav cuam tshuam rau lub neej kev pab cuam ntawm cov kabmob.Raws li peb txhua tus paub, lub ntsiab tsis ua hauj lwm hom ntawm dov bearings yog hu rau qaug zog kev puas tsuaj thiab poob ntawm bearing raug vim tsis zoo hnav tsis kam los yog dimensional instability;Yog hais tias cov bearing qhov chaw tsis muaj ib tug tej yam kev mob ntawm toughness, lawv yuav tshwm sim los ntawm brittle puas thaum raug rau loj tej yam loads.Kev puas tsuaj ntawm cov kabmob.

Yog li ntawd, qhov hardness ntawm cov kabmob yuav tsum tau txiav txim siab raws li qhov xwm txheej tshwj xeeb ntawm cov kabmob thiab txoj kev puas tsuaj.Rau qhov poob ntawm bearing raug vim qaug zog spalling los yog tsis zoo hnav tsis kam, siab dua hardness yuav tsum tau xaiv rau bearing qhov chaw;rau cov kabmob uas muaj kev cuam tshuam loj dua (xws li dov mills: bearings, railway bearings thiab qee lub tsheb bearings, thiab lwm yam), lawv yuav tsum raug txo kom tsim nyog rau cov hardness yog tsim nyog los txhim kho lub toughness ntawm cov kabmob.

5 tej yam toughness

Ntau cov dov bearings yuav raug rau qee yam kev cuam tshuam thaum siv, yog li cov kabmob steel yuav tsum muaj qee yam toughness los xyuas kom meej tias cov kabmob tsis raug puas vim muaj kev cuam tshuam.Rau cov kabmob uas tiv taus qhov hnyav hnyav, xws li dov zeb bearings, railway bearings, thiab lwm yam, cov ntaub ntawv yuav tsum muaj kev cuam tshuam loj heev thiab tawg toughness.Qee qhov ntawm cov kabmob no siv cov txheej txheem bainite quenching tshav kub, thiab qee qhov siv cov khoom siv hlau carburized.Xyuas kom meej tias cov bearings no muaj kev cuam tshuam zoo.

6 Zoo dimension stability

Rolling bearings yog precision mechanical qhov chaw, thiab lawv qhov tseeb yog xam hauv micrometers.Nyob rau hauv cov txheej txheem ntawm kev khaws cia ntev thiab siv, kev hloov pauv hauv lub koom haum sab hauv lossis kev hloov hauv kev ntxhov siab yuav ua rau muaj kev hloov pauv ntawm qhov loj ntawm cov kabmob, uas ua rau poob ntawm qhov tseeb ntawm cov kabmob.Yog li ntawd, txhawm rau kom ntseeg tau qhov tseeb qhov tseeb ntawm cov kabmob, cov kabmob steel yuav tsum muaj qhov ruaj khov zoo.

7 Kev ua haujlwm zoo tiv thaiv xeb

Rolling bearings muaj ntau cov txheej txheem ntau lawm thiab lub voj voog ntau lawm ntev.Qee qhov semi-tiav lossis tiav lawm yuav tsum tau khaws cia ntev ua ntej sib dhos.Yog li ntawd, cov khoom siv bearing yog ib qho kev txhim kho corrosion thaum lub sijhawm tsim khoom lossis hauv kev khaws cov khoom tiav: tshwj xeeb tshaj yog nyob rau hauv huab cua ntub.Yog li ntawd, cov kabmob steel yuav tsum muaj cov xeb zoo.

8 Cov txheej txheem ua tau zoo

Nyob rau hauv cov txheej txheem ntawm dov bearings, nws cov khoom yuav tsum mus los ntawm ntau yam txias thiab kub ua txheej txheem.Qhov no yuav tsum tau hais tias cov kabmob steel yuav tsum muaj cov txheej txheem zoo, xws li txias thiab kub tsim cov khoom, txiav, sib tsoo kev ua haujlwm thiab kev kho cua sov, thiab lwm yam, kom ua tau raws li qhov xav tau ntawm cov kabmob dov loj, kev ua haujlwm siab, tus nqi qis thiab kev tsim khoom zoo. .

Nyob rau hauv tas li ntawd, rau bearings siv nyob rau hauv tshwj xeeb kev ua hauj lwm tej yam kev mob, ntxiv rau cov saum toj no-hais yooj yim yuav tsum tau, coj tshwj xeeb kev kawm yuav tsum tau muab tso rau pem hauv ntej rau cov hlau siv, xws li kub tsis kam, siab ceev kev ua tau zoo, corrosion kuj thiab antimagnetic kev ua tau zoo.