Sab saum toj 7 Daim Ntawv Thov ntawm Deep Groove Ball Bearings hauv Kev Lag Luam Niaj Hnub Nimno

Kev Taw Qhia

Thoob plaws hauv kev lag luam niaj hnub no, cov kabmob sib sib zog nqus yog qhov kev xaiv tseem ceeb rau txhua qhov chaw uas cov tshuab yuav tsum khiav tau zoo, ua haujlwm tau zoo, thiab ntseeg tau hauv qab cov khoom sib xyaw. Lawv cov qauv yooj yim, kev sib txhuam tsawg, thiab lub peev xwm ceev ceev ua rau lawv haum rau txhua yam los ntawm cov cav hluav taws xob me me mus rau cov khoom siv loj. Tsab xov xwm no qhia txog xya daim ntawv thov tseem ceeb uas cov kabmob no muab cov txiaj ntsig zoo, thaum tseem qhia tias vim li cas cov kws ua haujlwm nyiam lawv dua li cov kev xaiv tshwj xeeb hauv ntau qhov xwm txheej ua haujlwm. Thaum kawg, cov nyeem ntawv yuav muaj kev nkag siab zoo dua txog qhov twg siv cov kabmob sib sib zog nqus, qhov kev ua tau zoo uas lawv xav tau, thiab lawv tus qauv tsim txhawb nqa kev ruaj khov, kev ceev, thiab kev ua haujlwm tsim nyog.

Vim Li Cas Cov Pob Bearings Sib Sib Zog

Cov kabmob sib sib zog nqus yog lub hauv paus ntawm cov qauv kev sib hloov niaj hnub, suav txog kwv yees li 70% txog 80% ntawm kev siv cov kabmob thoob ntiaj teb. Lawv txoj kev siv dav dav yog los ntawm kev tsim qauv uas muaj peev xwm ua tau ntau yam uas xa cov kev sib txhuam qis heev thaum ua raws li cov qauv thauj khoom nyuaj. Tsis zoo li cov kabmob tshwj xeeb uas txwv rau cov zog ib leeg, cov qauv sib sib zog nqus tswj kev ruaj khov ntawm ntau yam kev ua haujlwm, ua rau lawv tsis tseem ceeb hauv cov ntawv thov xws li micro-mechanics mus rau cov tshuab hnyav.

Qhov ua tau zoo ntawm cov khoom no yog tsav los ntawm qhov kev sib hloov meej - qhov sib piv ntawm lub vojvoog ntawm txoj kab sib tw rau lub pob txoj kab uas hla - uas feem ntau nyob ib puag ncig 51.5% txog 52%. Qhov kev sib haum xeeb nruj ntawm cov khoom dov thiab txoj kab sib tw no txo ​​qhov kev ntxhov siab thaum ua kom muaj kev sib hloov zoo tshaj plaws. Yog li ntawd, cov kws ua haujlwm vam khom qhov kev faib tawm ntawm cov kabmob no kom ua tiav cov hom phiaj siv hluav taws xob zoo thiab txuas ntxiv lub sijhawm nruab nrab ntawm kev ua tsis tiav (MTBF) hauv kev siv tas mus li.

Lub Peev Xwm Thauj Khoom thiab Qhov Sib Npaug Ceev

Qhov zoo tshaj plaws ntawm kev teeb tsa qhov tob tob yog nws lub peev xwm los sib npaug radial thiab axial load peev xwm yam tsis muaj kev cuam tshuam rau qhov ceev ntawm kev sib hloov. Txawm hais tias tsim los rau cov radial loads, cov raceways tob uas tsis muaj kev cuam tshuam tso cai rau cov kabmob los txhawb cov axial loads nruab nrab hauv ob qho kev taw qhia. Hauv cov qauv ib kab, qhov tso cai axial load tuaj yeem ncav cuag txog li 50% ntawm qhov ntsuas radial load static (C0), yog tias qhov ceev ua haujlwm tseem nyob hauv cov kev txwv thermal.

Lub peev xwm ceev kuj tseem ceeb ib yam nkaus. Vim lawv cov kinematics qis-friction, tus qauvcov kabmob sib sib zog nqusnrog cov tooj dag ua los ntawm tshuab lossis polyamide cages tuaj yeem yooj yim tuav tau qhov ceev tig tshaj 30,000 txog 50,000 RPM hauv cov qauv siab tshwj xeeb. Qhov ceev txwv yog nyob ntawm qhov kev siv lubrication thiab cov khoom siv tawb, nrog rau cov roj-cua mist systems thawb cov ciam teb kinematic siab dua li cov roj-packed lwm txoj hauv kev.

Cov Qauv Tseem Ceeb rau Kev Ua Tau Zoo

Kev xaiv cov kabmob rau cov ntawv thov kev lag luam muaj kev pheej hmoo siab yuav tsum tau soj ntsuam xyuas cov qauv kev ua tau zoo, uas tswj hwm los ntawm ISO 281 rau kev ntsuas dynamic load (C) thiab ISO 76 rau kev ntsuas static load (C0). Cov ntsuas no qhia txog lub neej ntsuas yooj yim L10h, uas sawv cev rau cov sijhawm ua haujlwm uas 90% ntawm cov pejxeem kabmob yuav ua tiav ua ntej pib ntawm kev qaug zog hlau.

Tshaj li qhov ntsuas qhov hnyav, cov pa tawm suab thiab kev co yog cov cim qhia txog qhov zoo tseem ceeb. Cov kabmob raug faib ua pawg los ntawm kev co ceev (piv txwv li, V1 txog V4) thiab suab nrov (Z1 txog Z4). Piv txwv li, lub pob sib sib zog nqus V3/Z3 yog qhov yuav tsum tau ua raucov cav hluav taws xob ceev ceevqhov twg cov kev co me me tuaj yeem ua rau muaj kev tsis sib npaug ntawm lub rotor ua ntej lub sijhawm. Kev ntsuas kev sib txhuam torque kuj ua lub luag haujlwm tseem ceeb, cuam tshuam ncaj qha rau qhov sib npaug ntawm lub tsev thiab qhia txog qhov tsawg kawg nkaus viscosity ntawm cov roj nplua nyeem xaiv.

Cov Kev Siv Sab Saum Toj ntawm Cov Pob Bearings Sib Sib Zog

Qhov kev siv ntau yam ntawm cov kabmob sib sib zog nqus tau pom tseeb tshaj plaws los ntawm lawv txoj kev xa mus thoob plaws xya lub lag luam tseem ceeb. Hauv cov ntawv thov no, cov kabmob raug kev nyuaj siab ntau yam, xws li kev kub hnyiab heev mus rau kev ua qias tuaj ntawm cov khoom me me. Cov txheej txheem kub ua haujlwm feem ntau yog los ntawm -30 ° C txog + 120 ° C, txawm hais tias cov kev hloov pauv kub tshwj xeeb (xws li S0 lossis S1 rings) thawb cov qib no mus rau 150 ° C thiab 200 ° C, raws li.

Cov Tsav Tsheb Hluav Taws Xob thiab Cov Kiv Cua

Hauv cov tshuab hluav taws xob (Daim Ntawv Thov 1) thiab cov kiv cua lag luam (Daim Ntawv Thov 2), qhov yuav tsum tau ua tseem ceeb yog kev txiav txim siab ntawm lub suab thiab kev ua haujlwm ceev ceev. Cov tshuab hluav taws xob vam khom rau 6200 thiab 6300 series bearings, feem ntau teev nrog C3 radial internal clearance. Qhov kev nce ntxiv no pab txhawb rau qhov thermal expansion ntawm lub nplhaib sab hauv los ntawm kev hloov pauv cua sov los ntawm lub rotor shaft. Yog tsis muaj qhov kev tshem tawm no, cov kabmob yuav raug kev txom nyem los ntawm qhov kev tshem tawm sab hauv tsis zoo, ua rau muaj kev puas tsuaj loj heev ntawm thermal runaway.

Cov kiv cua kev lag luam muaj ntau yam teeb meem sib txawv, feem ntau xav tau cov bearings los txhawb cov ncej ntev, uas ua rau muaj qhov tsis sib xws me me. Txawm hais tias cov bearings pob sib sib zog nqus tsuas yog ua rau muaj qhov tsis sib xws ntawm lub kaum sab xis li ntawm 2 txog 10 feeb ntawm arc, lawv lub xub pwg nyom ua rau lawv tswj tau lub zog gyroscopic thiab axial thrust tsim los ntawm cov impellers loj thaum pib.

Cov Khoom Siv Tsheb thiab Kev Lag Luam

Cov khoom siv hauv tsheb (Daim Ntawv Thov 3) thiab cov tshuab conveyor (Daim Ntawv Thov 4) xav tau kev ruaj khov tshwj xeeb hauv qab cov xwm txheej thauj khoom tsis ruaj khov. Piv txwv li, cov tshuab hloov pauv tsheb, ua rau cov bearings raug kev nruj ntawm txoj siv sia (radial load), cov qauv kev nrawm nrawm, thiab qhov kub hauv qab uas feem ntau tshaj 130 ° C. Cov chaw no xav tau cov bearings pob sib sib zog nqus uas muaj cov roj polyurea kub thiab cov foob fluorocarbon (FKM) tiv thaiv kom tsis txhob puas tsuaj ntawm cov roj nplua nyeem.

Hauv cov gearboxes kev lag luam (Daim Ntawv Thov 5) thiab cov menyuam conveyor, cov bearings feem ntau ua haujlwm hauv qhov chaw muaj kuab paug heev. Cov idlers conveyor siv cov bearings sib sib zog nqus groove los thaiv cov hmoov av mining lossis cov khib nyiab tsim khoom nkag mus. Cov bearings hauv cov kab ke no tau ua kom zoo rau lub peev xwm thauj khoom zoo li qub thiab kev tiv thaiv kev poob siab, kom ntseeg tau tias cov khoom hnyav, faib tsis sib npaug tsis ua rau muaj kev sib tsoo hauv zos thaum nres tam sim ntawd.

Cov Khoom Siv Hauv Tsev thiab Cov Twj Tso Kua Mis

Cov khoom siv hauv tsev, tshwj xeeb yog cov tshuab ntxhua khaub ncaws (Daim Ntawv Thov 6), yog ib qho ntawm cov neeg siv khoom siv ntau tshaj plaws. Cov kabmob nruas tseem ceeb yuav tsum txhawb nqa cov khoom hnyav, dynamic unbalanced thaum lub sijhawm tig uas feem ntau ncav cuag 1,200 txog 1,600 RPM. Cov kabmob no tau teev tseg thoob ntiaj teb nrog cov foob sib txuas ob chav hnyav (2RS lossis 2RSH) los tiv thaiv dej thiab tshuaj ntxuav nkag, uas yuav ua rau cov roj lithium-based emulsify sai.

Ib yam li ntawd, cov twj tso kua dej centrifugal (Daim Ntawv Thov 7) vam khom cov kabmob sib sib zog nqus kom tswj tau qhov sib cuam tshuam ntawm cov zog radial los ntawm lub impeller thiab axial thrust los ntawm cov kua dej sib txawv. Hauv cov twj tso kua dej ntau theem, cov kabmob sib sib zog nqus feem ntau yog ua ke nrog cov kabmob sib cuag angular, ua haujlwm ua cov kabmob nrhiav kom ruaj khov qhov chaw ntawm tus ncej thaum ua kom haum rau qhov deflection ntawm tus ncej thiab tswj hwm kev sib khi ua haujlwm nruj.

Cov Bearings Sib Sib Zog Sib Npaug vs Lwm Hom Bearing

Txawm hais tias cov kabmob sib sib zog nqus yog qhov ua tau ntau yam, kev tsim kho qhov tseeb yuav tsum tau phim cov qauv ntawm cov kabmob rau qhov xav tau kinematic ntawm lub kaw lus. Cov kws ua haujlwm yuav tsum feem ntau ntsuas qhov zoo ntawm cov qauv sib sib zog nqus piv rau lwm txoj hauv kev zoo li cylindrical.cov kabmob rau cov menyuam, cov kabmob sib cuag angular, thiab cov kabmob tapered roller. Qhov sib txawv tseem ceeb yog nyob rau hauv qhov geometry sib cuag: qhov sib cuag taw tes hauv cov kabmob pob ua rau muaj kev sib txhuam qis dua 20% txog 30% piv rau qhov sib cuag kab pom hauv cov kabmob menyuam ntawm qhov sib npaug.

Thaum Twg Yuav Tsum Xaiv Cov Bearings Sib Sib Zog Groove

Cov kabmob sib sib zog nqus yog qhov kev xaiv zoo tshaj plaws thaum daim ntawv thov muab qhov tseem ceeb rau kev sib hloov ceev siab,suab nrov ua haujlwm tsawg, thiab kev saib xyuas tsawg kawg nkaus dhau ntawm lub peev xwm thauj khoom hnyav heev. Lawv tau txais kev nyiam tshwj xeeb thaum lub nra hnyav axial siv tsawg dua 50% ntawm lub nra hnyav radial. Yog tias lub nra hnyav axial tshaj qhov txwv no, qhov sib cuag ellipse ntawm lub pob thiab raceway yuav txiav ntawm lub xub pwg nyom raceway, ua rau kev thauj khoom sai thiab spalling.

Ntawm qhov tod tes, yog tias lub kaw lus muaj cov khoom siv radial ntshiab, hnyav nrog xoom lub zog axial, yuav tsum tau teev tseg ib lub cylindrical roller bearing. Txawm li cas los xij, cov qauv tsim qhov tob tseem yog qhov qub rau cov xwm txheej sib dhos tsis pom kev lossis cov chaw bearing tsis nyob qhov twg qhov kev teeb tsa yooj yim thiab kev saib xyuas tsis muaj, kev teeb tsa kaw rau lub neej yog qhov xav tau.

Kev Sib Piv ntawm Qhov Ceev, Radial Load, thiab Axial Load

Txhawm rau ntsuas qhov kev ua tau zoo, cov engineers siv cov matrices sib piv los ntsuas cov kev txwv kinematic. Cov bearings roller zoo heev hauv kev ruaj khov thiab lub peev xwm radial tab sis raug kev txom nyem nyob rau hauv kev txwv ceev vim yog lub tawb swb sib txhuam thiab cov menyuam skewing. Angular contact bearings muab kev ruaj khov axial zoo dua tab sis yuav tsum tau mounted hauv preloaded khub kom ua haujlwm kom raug.

Cov qauv sib piv no qhia tau tias vim li cas cov kabmob sib sib zog nqus groove ball bearings thiaj li tseem ceeb rau cov tshuab dav dav: lawv muab cov txheej txheem kev ua tau zoo tshaj plaws yam tsis tas yuav tsum muaj cov txheej txheem ua ntej lossis cov txheej txheem lubrication tshwj xeeb.

Cov Lus Qhia Tshwj Xeeb, Kev Siv Lubrication, thiab Kev Ua Raws Cai

Kev ua tiav lub neej voj voog ntawm lub pob sib sib zog nqus L10h theoretical yuav tsum tau ua tib zoo qhia txog nws cov geometry sab hauv, cov txheej txheem sealing, thiab cov khoom siv hlau. Kev ua raws li cov qauv thoob ntiaj teb, xws li ISO 15 dimensional plan, ua kom muaj kev sib pauv thoob ntiaj teb, tab sis kev ntseeg siab ua haujlwm tiag tiag nyob ntawm kev kho cov yam ntxwv sab hauv rau lub hom phiaj ib puag ncig.

Kev Tshem Tawm, Lub Tawb, Cov Ntsaws, thiab Cov Roj Hmab

Radial sab hauv clearance (RIC) yog ib qho tseem ceeb heev. Txij li ntawm nruj (C2) mus rau tus qauv (CN) mus rau xoob (C3, C4, C5), qhov clearance dictates lub geometry ua haujlwm ntawm cov kabmob tom qab nias-haum nthuav dav thiab thermal loj hlob. Cages kuj hloov pauv kev ua tau zoo heev; thaum stamped hlau yog tus qauv, iav-fiber reinforced polyamide (PA66) cages muab kev ywj pheej zoo dua thiab suab qis dua, txawm hais tias lawv tsuas yog txwv rau qhov kub ua haujlwm hauv qab 120 ° C.

Cov txheej txheem sealing thiab lubrication yog qhov sib txuas ua ke. Feem ntau cov kabmob sib sib zog nqus uas tau kaw lawm yog cov roj uas tau ntim ua ntej uas siv 25% txog 35% ntawm qhov chaw dawb sab hauv - qhov ntim tau zoo tshaj plaws los tiv thaiv kev sib txhuam thaum ua kom ntseeg tau tias cov zaj duab xis elastohydrodynamic lubrication tuab txaus.

Cov Qauv, Cov Khoom Siv, thiab Cov Chav Kawm Kev Ua Siab Ntev

Qhov ntsuas thiab qhov tseeb ntawm kev khiav yog tswj hwm los ntawm ISO 492 cov qauv, uas sib raug rau ABEC cov chav kawm kam rau siab (ABEC 1, 3, 5, 7, 9). Rau cov cav tov lag luam txheem, ABEC 1 lossis 3 (ISO Class Normal lossis Class 6) txaus. Txawm li cas los xij, cov ntawv thov spindle ceev ceev yuav tsum tau ABEC 7 (ISO Class 4) kom txo qhov khiav tawm radial kom tsawg dua 4 micrometers.

Metallurgically, feem ntau ntawm cov pob bearings sib sib zog nqus zoo tshaj plaws yog forged los ntawm cov hlau high-carbon, chromium-alloyed, tshwj xeeb yog SAE 52100 lossis 100Cr6. Cov khoom siv no raug rau martensitic lossis bainitic hardening txheej txheem kom ua tiav qhov nyuaj sib xws ntawm 60 txog 64 HRC, kom ntseeg tau tias muaj kev tiv thaiv zoo tshaj plaws rau kev sib txhuam ntawm cov av.

Cov Kauj Ruam Qhia Txog Kev Ua Kom Tsis Txhob Ua Tsis Tau Zoo

Cov ntaub ntawv kev lag luam qhia tau hais tias qhov tsis zoo thiab kev ua qias tuaj ua rau muaj ntau dua 50% ntawm kev ua tsis tiav ua ntej lub sijhawm, thaum cov khoom siv qaug zog ua rau tsawg dua 10%. Txhawm rau kom txo qhov kev ua tsis tiav, cov kws ua haujlwm yuav tsum ua qhov kev suav tuab ntawm zaj duab xis elastohydrodynamic (EHL), kom ntseeg tau tias qhov sib piv viscosity (kappa) ntau dua 1 ntawm qhov kub ua haujlwm.

Ntxiv mus, kev qhia meej txog qhov chaw thiab lub tsev kom haum - feem ntau yog qhov haum rau lub nplhaib tig (piv txwv li, k5 lossis m5 kam rau siab) thiab qhov hloov pauv/kev sib txawv rau lub nplhaib ruaj khov (piv txwv li, H6 lossis J7) - tiv thaiv kev xeb thiab kev nkag mus ntawm lub nplhaib. Kev txwv tsis pub siv lub bearing nrog kev sib txawv ntau dhau yuav tshem tawm qhov sib txawv sab hauv, ua rau lub zog sib txhuam nce siab thiab ua rau muaj kev puas tsuaj loj heev hauv ob peb teev tom qab ua haujlwm.

Yuav Ua Li Cas Xaiv Qhov Sib Sib Zog Pob Bearing

Kev nrhiav tau qhov zoo tshaj plaws ntawm cov kabmob sib sib zog nqus uas nthuav dav tshaj qhov kev xam lej engineering; nws yuav tsum tau kev tswj hwm cov khoom siv zoo thiab kev tsim nyog ntawm cov neeg muag khoom. Kev lag luam thoob ntiaj teb ntawm cov kabmob muaj ntau yam sib cais, xws li Tier 1 multinational OEMs mus rau cov chaw tsim khoom hauv cheeb tsam dawb-daim ntawv lo. Kev taug kev hauv qhov xwm txheej no yuav tsum tau sib npaug cov nqi pib ntawm chav tsev piv rau tag nrho cov nqi ntawm kev muaj (TCO), uas suav nrog lub sijhawm txij nkawm, lub sijhawm tsis ua haujlwm ntawm lub tshuab, thiab kev siv hluav taws xob.

Kev Tshuaj Xyuas thiab Kev Nrhiav Tus Neeg Muab Khoom

Kev ntsuam xyuas cov neeg muab khoom yuav tsum muab cov ntawv pov thawj ntawm qhov system tswj xyuas zoo (QMS) tso ua ntej.kev siv rau kev lag luam thiab tsheb, cov chaw muab khoom yuav tsum muaj daim ntawv pov thawj ISO 9001 thiab IATF 16949. Cov qauv no ua kom ntseeg tau tias muaj kev taug qab ntawm cov hlau thiab ua kom muaj kev tswj hwm cov txheej txheem txheeb cais (SPC) ntawm cov kab sib tsoo thiab honing. Tus neeg muag khoom siab yuav tsum ua kom pom tseeb tias muaj qhov tsis zoo tsawg dua 50 Qhov Ib Lab (PPM).

Lub sijhawm ua khoom thiab cov nqi cuab yeej kuj tseem ceeb rau cov tswv yim nrhiav khoom. Cov kabmob metric series txheem (xws li 6000, 6200, thiab 6300 series) yog cov khoom lag luam zoo heev, feem ntau muaj nyob ntawm lub txee nrog xoom lub sijhawm ua khoom. Txawm li cas los xij, xav tau cov roj polyurea tshwj xeeb, cov qhov tsis yog tus qauv radial clearances (xws li C4), lossis cov foob fluorocarbon tshwj xeeb tuaj yeem ntev lub sijhawm ua khoom mus txog 8 txog 12 lub lis piam thiab ua rau muaj qhov tsawg kawg nkaus ntawm kev txiav txim (MOQs) txij li 1,000 txog 5,000 units.

Kev Sib Txuas Daim Ntawv Thov thiab Kev Npaj Cov Khoom Muag

Kev sib phim daim ntawv thov zoo yuav tsum muaj kev pom dav dav ntawm lub tshuab lub neej voj voog.

Cov Ntsiab Lus Tseem Ceeb

• Cov lus xaus tseem ceeb tshaj plaws thiab cov laj thawj rau Deep Groove Ball Bearings
• Cov lus qhia tshwj xeeb, kev ua raws li txoj cai, thiab kev kuaj xyuas kev pheej hmoo uas tsim nyog lees paub ua ntej koj cog lus
• Cov kauj ruam tom ntej thiab cov lus ceeb toom uas cov nyeem ntawv tuaj yeem siv tau tam sim ntawd

Cov Lus Nug Feem Ntau

Cov lag luam twg siv cov bearings sib sib zog nqus feem ntau?

Lawv siv dav hauv cov tshuab hluav taws xob, kiv cua, tshuab tsheb, conveyors, tshuab ua liaj ua teb, khoom siv textile, thiab tshuab kev lag luam dav dav.

Vim li cas cov bearings sib sib zog nqus groove pob thiaj li nyiam rau cov motors hluav taws xob?

Lawv muaj kev sib txhuam tsawg, muaj peev xwm ua haujlwm ceev ceev, thiab suab nrov tsawg. Rau cov ntawv thov lub cev muaj zog, C3 clearance feem ntau raug xaiv los tswj kev nthuav dav ntawm lub ncej uas cuam tshuam nrog cua sov.

Cov bearings sib sib zog nqus puas tuaj yeem tuav ob qho tib si radial thiab axial loads?

Yog. Lawv feem ntau nqa cov khoom thauj radial tab sis kuj tuaj yeem txhawb nqa cov khoom thauj axial nruab nrab hauv ob qho kev taw qhia, ua rau lawv siv tau rau cov qauv OEM ntau yam.

Kuv yuav xaiv cov kabmob sib sib zog nqus ntawm DEMY Bearings li cas?

Tshawb xyuas qhov hnyav, qhov ceev, qhov chaw seem, kev sib khi, kev ua kom lubrication, thiab qhov kub thiab txias ua haujlwm. DEMY's e-catalog pab cov neeg yuav khoom sib piv cov series xws li 6200 thiab 6300 rau cov khoom siv tshwj xeeb.

Cov yam ntxwv zoo li cas yuav tsum cov neeg yuav khoom nrhiav hauv cov bearings sib sib zog nqus?

Ua kom pom tseeb txog qhov tseeb, qib suab nrov, qib kev co, lub neej ua haujlwm, thiab daim ntawv pov thawj. DEMY qhia txog ISO/TS16949-txhawb nqa kev tsim khoom, cov khoom siv kuaj, thiab qhov zoo ruaj khov rau OEM thiab cov neeg faib khoom xav tau.