Thaum cov cuab yeej yuav tsum tau tiv thaiv ob qho tib si radial thiab axial loads ib txhij, angular contact pob bearings feem ntau yog tus kws tshaj lij kev xaiv. Txawm li cas los xij, xaiv tus qauv zoo tsuas yog thawj kauj ruam xwb; cov txheej txheem installation, mating Cheebtsam, thiab cov tswv yim txij nkawm txhua tus ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov ua tau zoo kawg.
Vim li cas angular contact pob bearings yog qhov kev xaiv zoo tshaj rau cov khoom siv siab -precision?
Hauv cov ntawv thov uas xav tau kev tswj xyuas qhov tseeb, axial load - nqa peev txheej txheem sib sib zog nqus -groove pob bearings feem ntau poob qis. Nyob rau hauv sib piv, precision angular hu rau pob bearings feature ib tug tshwj xeeb raceway tsim uas tsim ib tug ruaj tiv lub kaum sab xis ntawm cov npas thiab lub puab thiab sab rings. Cov txheej txheem kev teeb tsa no muaj peb qhov txiaj ntsig tseem ceeb:
- Combined load peev: Sib cuag cov ces kaum xws li ntawm 15℃mus rau 40℃tso cai rau cov kabmob rau ib txhij lis radial rog thiab unidirectional axial rog.
- Precision retention: Preloaded installation zoo txo qis axial ncej hloov chaw, ua rau lawv zoo tagnrho rau precision daim ntaub ntawv xws li tshuab cuab tam spindles.
- Siab- muaj peev xwm ceev: Piv nrog rau cov kabmob tapered rau cov menyuam, cov kabmob muaj peev xwm ua rau qis qis dua, ua rau lawv zoo dua rau kev siv siab -ceev angular hu.
Rau qhov chaw - txwv tsis pub siv- xws li cov pob qij txha neeg hlau lossis cov cuab yeej kho mob - nyias- ntu angular hu rau pob bearings tuaj yeem txo qhov kev teeb tsa hneev taw yam tsis muaj kev cuam tshuam kev ua haujlwm. Lub kaum sab xis loj dua tuaj yeem txhim kho axial load peev xwm tab sis ua rau muaj qhov sib npaug qis qis dua.
Dab tsi yog qhov zoo ntawm cov angular hu rau pob bearings?
Tsis zoo li cov kev sib tw symmetrical pom nyob rau hauv cov qauv bearings, lub load-cov yam ntxwv ntawm cov kabmob no zoo ib yam li cov kabmob ntawm lub kaum sab xis; Thaum siv cov axial load, lub zog raug txiav mus rau hauv radial thiab axial Cheebtsam ntawm lub kaum sab xis. Hauv kev xyaum, lawv muab peb qhov zoo sib xws:
- Adjustable rigidity: Los ntawm kev sib txuas mounting thiab preload hloov kho, lawv tuaj yeem hloov mus rau ntau qhov chaw vibration.
- Kev pab cuam lub neej ntev: Cov nplhaib tawv tawv ua ke nrog siab - cov pob zoo ua kom muaj zog tiv taus hlau qaug zog.
- Kev khiav hauj lwm ntau yam: Qee cov qauv siv cov cag ntoo, ua rau lawv tiv taus qhov kub thiab txias.
Rau corrosive ib puag ncig, stainless hlau angular hu rau pob bearings muaj superior xeb kuj piv rau cov txheej txheem plated txheej, ua rau lawv tshwj xeeb tshaj yog haum rau kev ua zaub mov los yog cov khoom siv tshuaj.
Ib - kab lossis ob - kab? Yuav ua li cas xaiv txoj cai angular hu rau pob bearing rau txawv scenarios? Kev xaiv qhov tseem ceeb suav nrog kev ntsuas peb qhov ntev: thauj khoom, kev sib hloov ceev, thiab qhov chaw. Feem ntau configuration
cov tswv yim muaj xws li:
- High-precision, lub teeb-load daim ntawv thov (piv txwv li, optical instruments)
- Ua ntej ib qho - kab qauv tsim kom txo qis kev sib txhuam kub.
- Xaiv lub kaum sab xis hauv qab 25℃kom ntseeg tau tias muaj kev txwv ntau dua.
- Siv phenolic resin cages kom txo tau kev co.
- Hnyav-duty, ua ke-load daim ntawv thov (piv txwv li, gearboxes)
- Xaiv ob - kab angular hu rau pob bearings lossis rov qab -rau - rov qab ua khub.
- Kev tiv thaiv lub kaum sab xis ntawm 30℃-40℃raug pom zoo.
- Steel cages muaj kev cuam tshuam zoo dua.
- Lwm yam kev xav.
- Siv tus kheej -aligning pob bearings yog tus kheej -aligning peev xwm yuav tsum tau.
- Xav txog tapered cov menyuam bearings rau siab heev axial loads.
Thaum ob - kab bearings muab siab load-nrog peev xwm, lawv ua nruj me ntsis raws li qhov yuav tsum tau ua ntawm parallelism ntawm mounting nto.
Thaum xaiv cov kabmob, yuav tsum xaiv cov khoom sib xyaw ua ke li cas kom tsis txhob cuam tshuam kev ua haujlwm?
Kev yuav cov kabmob yog qhov pib xwb; Cov mating Cheebtsam no cuam tshuam ncaj qha rau kev ntseeg siab:
- Cage xaiv: Resin tawb yog tsim rau kev kub ceev, thaum hlau tawb muaj kev cuam tshuam. Xyuas kom muaj kev sib raug zoo ntawm lub tawb nqa khoom thiab cov roj nplua nyeem kom tiv thaiv cov khoom siv.
- Lub tswv yim lubrication: Siv cov roj hluavtaws rau siab - daim ntawv thov ceev thiab siab - roj viscosity rau hnyav - lub luag haujlwm. Khoom noj khoom haus-qib ib puag ncig yuav tsum tau NSF- cov ntawv pov thawj cov roj nplua nyeem.
- Cov khoom siv pabcuam: Cov vaj tse tsis txaus tuaj yeem ua rau qhov tsis sib xws, thiab cov ntsaws ruaj ruaj muaj peev xwm tso cai rau cov kab mob nkag mus rau -cov kev tsis muaj zog zais cia no feem ntau ua rau tsis ua haujlwm ntau dua li cov kabmob nws tus kheej.
Txwv cov roj sau rau 30% -50% ntawm cov kabmob sab hauv; overfilling ua tau nce frictional tshav kub.
Cov ntsiab lus ntawm kev teeb tsa dab tsi tuaj yeem txo qhov kev pab cuam lub neej ntawm angular hu rau pob bearings?
Txawm hais tias thaum siab - cov kabmob zoo raug xaiv, cov kev ua haujlwm hauv qab no tseem tuaj yeem ua rau tsis ua haujlwm ntxov:
- Rough installation: Tawm lub nplhaib sab nraud ncaj qha nrog rauj ua rau txoj kev sib tw; cov cuab yeej hydraulic lossis induction cua sov yog cov kev xaiv txhim khu kev qha.
- Kev ua tsis zoo preload: Ntau dhau preload ua rau hnav, thaum tsis txaus preload ua rau kev co; torque wrenches yuav tsum tau siv rau kev tswj kom meej.
- Misalignment: Eccentricity tshaj 0.05 mm ho shortens kev pab cuam lub neej.
- Kev tshem tawm txoj kev: Siv cov cuab yeej tshwj xeeb tshem tawm kom tsis txhob muaj cov qhab nia ntawm daim ntawv teev npe.
Ntsuas qhov ntev ntawm cov ncej thiab cov kabmob ua ntej kev teeb tsa; qhov tshwm sim haum (kev cuam tshuam / tshem tawm) yog qhov tseem ceeb tshaj qhov tseem ceeb ntawm txoj kev xav.
Los ntawm kev xaiv thrust angular contact pob bearings los xaiv cov cuab yeej tsim nyog, lub hauv paus ntsiab lus tseem ceeb yog ib txwm ua raws li kev ua haujlwm tiag tiag - tsis muaj qhov "zoo" lossis "phem," tsuas yog tsim nyog.
