Kev tsim kho cov menyuam Bearings
Cov menyuam bearings feem ntau muaj cov hauv qab no cov ntsiab lus, uas ua haujlwm ua ke kom xa cov kev txhawb nqa kev sib hloov: Sab hauv thiab Sab Nraud Cov Kabmob: Cov qauv tsim ntawm cov nplhaib puab thiab sab nrauv tau teeb tsa raws li hom dov lub caij lawv haum xws li cylindrical, conical, lossis spherical. Qee hom, zoo li lub cylindrical roller bearings, muaj flange formations ntawm lub nplhaib kom steer lub rollers nrog rau kev txhawb nqa axial loads. Rolling Elements and Cage: Rollers: Lawv yog cov dov cov ntsiab lus nyob nruab nrab ntawm sab hauv thiab sab nrauv raceways, thiab yog cov thauj khoom thauj. Lawv tuaj yeem raug teeb tsa hauv ntau daim duab, suav nrog cylindrical, conical, nruas, thiab koob tsim. Cage: Khaws cov chais los ntawm tilting lossis npog ib leeg, thiab coj lawv mus rau qhov xav tau. Cov ntaub ntawv muab rau lub tawb tuaj yeem yog cov hlau stamped, machined tooj dag, lossis qee hom engineering yas.
Qhov chaw / Floating End Design (Tshwj xeeb): Rau qee hom, xws li cov menyuam cov kabmob cylindrical, cov nplhaib sab hauv thiab sab nrauv feem ntau tsim los ua cov qauv sib cais (xws li N lossis NU hom), tso cai rau cov txheeb ze axial hloov chaw. Cov no ua haujlwm raws li ntab kawg (dawb kawg) hauv lub cev kom nqus cov thermal expansion.
Clearance: Qhov no yog qhov muaj peev xwm txheeb ze txav ntawm lub nplhaib sab hauv thiab sab nraud thaum tsis tau teeb tsa cov kabmob. Nyob rau hauv cov ntaub ntawv ntawm cov menyuam bearings, kev kho kom raug ntawm qhov clearance yog qhov tseem ceeb rau kev tsim ib tug elastic hydrodynamic lubrication zaj duab xis.
Cov Lus Nug Txog Cov Menyuam Bearings (FAQ)
Q1: Ua li cas cov menyuam bearings txawv ntawm pob bearings?
Vim yog lawv txoj kab sib cuag, cov menyuam bearings yog li muaj peev xwm muaj peev xwm thauj khoom ntau dua thiab muaj kev tiv thaiv ntau dua. Lawv yog cov haum rau hnyav loads thiab hnyav hnyav tab sis muaj qis limiting speeds thiab rhiab heev rau angular misalignment. Pob bearings muaj qhov taw tes sib cuag, tsis tshua muaj kev sib txhuam, siab txwv ceev, thiab tus nqi qis dua. Lawv haum rau nruab nrab thiab lub teeb loads thiab siab -kev siv ceev.
Q2: Dab tsi yog qhov 'qhov kawg' thiab 'floating kawg' hauv kev npaj cov kabmob?
Qhov chaw qhov kawg (taag kawg) bearing yog positioned axially nyob rau hauv ob qho tib si cov lus qhia, thiab yog li yog siv los txhais lub axial txoj hauj lwm ntawm tus ncej nrog kev hwm rau axial bearing loads nyob rau hauv ob qho tib si cov lus qhia. Lub floating kawg (dawb kawg) bearing tso cai rau axial hloov chaw ntawm tus ncej txheeb ze rau cov kabmob vaj tse. Qhov no yog li cov kabmob tsis txeeb thiab ua kom haum rau tus ncej lub axial thermal expansion thiab contraction vim qhov kub thiab txias. Piv txwv li, lub cev muaj zog uas muaj ib qho kawg nrog NJ- hom cylindrical roller bearing (qhov chaw) thiab lwm qhov kawg nrog NU- hom (floating) bearing.
Q3: Kuv yuav tsum xav txog dab tsi thaum xaiv N, NU, NJ, thiab NUP kev faib tawm ntawm cylindrical roller bearings? Yog tias tsuas yog yuav tsum muaj kev txhawb nqa radial thiab axial txav ntawm lub ncej yog tsim nyog nyob rau hauv ob qho tib si cov lus qhia: xaiv NU lossis N- hom (floating kawg).
Rau ib qho -txoj kev axial positioning: xaiv NJ- hom (ib zaug- kev taw qhia tsau).
Rau ob -txoj kev axial positioning (ib leeg kabmob): xaiv NUP- hom (taw kawg).
Ob -txoj kev tso chaw tuaj yeem ua tiav los ntawm kev sib txuas NJ- hom nrog HJ- hom thrust nplhaib.
