1. Dab tsi? Cov kabmob tau siv thawj zaug hauv lub sijhawm qub?
Txij thaum ancient sij hawm, tib neeg tau tsim ntau txoj hauv kev los txo kev sib txhuam. Tam sim no cia peb saib cov piv txwv ntawm Egyptian pyramids.
Cov pyramids tau tsim los siv cov pob zeb loj loj, hnyav ua ke rau ib sab ntawm lwm qhov. Qhov loj ntawm cov pob zeb no yog qhov xav tsis thoob: Yuav ua li cas hauv ntiaj teb cov neeg thaum ub tau txav cov pob zeb hnyav li no? Koj tuaj yeem kwv yees cov lus teb los ntawm kev kawm cov duab kos duab Egyptian thaum ub.
Muaj ntau cov duab kos duab qhia txog cov qauv pyramid, uas peb tuaj yeem pom cov cav dov hauv qab pob zeb loj. Cov kws tshawb fawb ntseeg tias los ntawm dov cov cav no, kev sib txhuam tau txo qis, tso cai rau lub zog me me kom txav cov pob zeb hnyav heev. Hom kev thauj pob zeb no tau muab txoj hauv kev rau lub tswv yim ntawm dov cov ntsiab lus (rollers) siv hauv cov kabmob.
Thoob plaws hauv lub hnub nyoog, tib neeg cov ntaub ntawv ntawm kev txo kev sib txhuam nws txawv raws lub sijhawm thiab txoj kev, tab sis tuaj yeem pom thoob ntiaj teb. Qhov no qhia tau hais tias qhov tseem ceeb ntawm kev txo kev sib txhuam kom smoother txav thoob plaws tib neeg keeb kwm.
2. Puas yog Leonardo da Vinci yog thawj tus neeg xav txog kev siv cov kabmob nrog tawb?
Leonardo da Vinci yog ib tus kws kos duab zoo heev los ntawm ltalis thiab ib qho ntawm "Cov neeg Renaissance". Nws yog tsis muaj exaggeration hu nws "txiv" ntawm niaj hnub bearings.
Mob siab rau thiab xav paub txog txhua yam, Leonardo tau tso siab rau qhov kev xav tsis yog hauv ntiaj teb kev kos duab nkaus xwb tab sis kuj tseem nyob hauv kev tsim kho tshuab. Ib daim duab ntawm cov kabmob, ib qho tseem ceeb ntawm cov tshuab, tuaj yeem pom hauv ib qho ntawm nws phau ntawv sau. Qhov kev txawj ntse tsis sib xws no tau ua rau cov kabmob uas txo qis kev sib txhuam.
Cov qauv yog ib qho qauv ntawm ob lub nplhaib sab sauv thiab qis (lub rooj zaum) thiab cov khoom dov (cov ntsiab lus dov) sandwiched ntawm lub nplhaib. Amazingly, cov duab kos txawm tias muaj "lub tawb" kom cov pob tsis tuaj yeem sib cuag.
Qhov no yuav luag zoo tib yam rau cov kabmob kev tsim kho uas peb txuas ntxiv siv niaj hnub no. Qhov no "cov qauv kev coj tus kheej" uas muaj cov kev sib tw, cov khoom dov ("pob" lossis "rollers") thiab tawb tau npaj tseg txog 500 xyoo dhau los. Nws yog precisely vim hais tias ntawm lub ntse heev ntawm Renaissance txiv neej Leonardo uas bearings muaj peev xwm ua kom tiav qhov tseem ceeb leap. Tab sis txawm hais tias nws tuaj yeem nrhiav pom qhov yooj yim load-bearing qauv, tiag tiag lub tsev thiab loj-tsim xws li ib tug ntaus ntawv yuav yog lwm yam teeb meem. Txhawm rau ua cov bearings dav siv hauv tshuab, peb yuav tsum tos kom muaj kev lag luam kiv puag ncig.
3. Qhov nrov ntawm bearings tshwm sim thaum lub sij hawm muaj kiv puag ncig
Lub Industrial Revolution tau siv sij hawm kwv yees li ntawm nruab nrab -18 xyoo pua txog rau xyoo pua 19th. Cov hlau tau tsim ntau, tso cai rau lub zog siab steel bearings los ua pawg thawj zaug. Qhov no txhais tau hais tias cov bearings yuav siv tau nyob rau hauv ib tug ntau yam ntawm industrial cheeb tsam. Kev siv cov bearings ntawm axles yog ib qho tseem ceeb nrhiav pom ntawm lub hnub nyoog ntawm kev lag luam.
Thawj kauj ruam yog lub pob bearing, siv rau hauv lub tsheb kauj vab axles, uas siv "pob" ua cov khoom dov. Qhov no tau nrov nrov. Tom qab cov menyuam bearings tau tsim. Nws siv "rollers" raws li dov cov ntsiab lus thiab tau siv rau ntawm lub axles ntawm nees-tswj tsheb. Lub advent ntawm bearing-raws li axles tau enabled ib tug loj leap rau pem hauv ntej ntawm kev thauj mus los thiab txav.
Yuav luag tib lub sijhawm, bearings tau pib siv ntau yam kev lag luam tshuab, ua haujlwm zoo rau kev lag luam. Nyob rau hauv tus txheej txheem ntawm kev lag luam kiv puag ncig, bearings tau zais kev pab kev lag luam thiab tau dhau los ua ib qho kev sib cais tsis tau rau noob neej.
4. Keeb kwm ntawm Japanese bearings
Thawj cov kabmob uas tsim nyob rau hauv Nyij Pooj tau hais tias tau tsim nyob rau xyoo 1916 los ua tiav daim ntawv xaj rau Imperial Navy. JTEKT tus thawj coj, Koyo Seiko (tom qab Koyo Seiko Co., Ltd.), pib tsim thiab muag bearings tsuas yog tsib xyoos tom qab xyoo 1921.
Nrog rau kev thov hauv tsev rau cov tsheb kauj vab loj zuj zus hauv Nyij Pooj thiab qhov tshwm sim ntawm tsheb, kev lag luam Nyij Pooj zoo li tau teeb tsa tsis tu ncua thiab nthuav dav. Lub neej yav tom ntej yog kaj. Tab sis tom qab ntawd Ntiaj Teb Tsov Rog II tau tshwm sim. Factories thoob plaws Nyiv tau raug kev puas tsuaj loj rau kev ua tsov ua rog, thiab kev lag luam bearing tau muaj kev cuam tshuam loj heev.
Tab sis Nyiv cov bearings manufacturers tsis kam budge. Peb tau ua haujlwm ua ke los tsim cov txheej txheem tsim khoom rau cov kabmob zoo. Lub precision thiab kev ua tau zoo ntawm Japanese-ua bearings tsis tsuas yog rov qab, tab sis zoo dua puas tau.
Raws li motorization nce, ntau thiab ntau bearings yog tsim los txhim kho lub durability thiab kev cia siab ntawm lub tsheb, ua rau muaj ib tug surge nyob rau hauv domestic thov rau bearings nyob rau hauv Nyiv. Bearings tau ua lub luag haujlwm tseem ceeb hauv Nyij Pooj txoj kev loj hlob ntawm kev lag luam hauv lub sijhawm no. Nws thiaj li, qhov tseeb thiab kev ua tau zoo ntawm Japanese bearings tau lees paub thoob ntiaj teb, tso cai rau peb nkag mus rau hauv kev lag luam thoob ntiaj teb. Tam sim no, nrog Japanese bearings ua nto moo thoob ntiaj teb, kwv yees li 30% ntawm cov bearings nyob rau hauv lub ntiaj teb no yog ua hauj lwm ntawm Japanese bearings manufacturers.
5. Cov keeb kwm evolutionary ntawm bearings yog keeb kwm ntawm kev loj hlob ntawm tib neeg kev vam meej
Yog tias cov bearings tsis tau tsim, tib neeg tej zaum tseem yuav tawm tsam kom siv zog ntau heev kom txav tau cov khoom hnyav niaj hnub no, tsis yog hais txog peb yuav luag tsis muaj txhua yam niaj hnub yooj yim thiab kev nplij siab uas cov tshuab muab.
Kev yug me nyuam thiab evolution ntawm bearings tau muaj kev cuam tshuam tsis zoo rau kev loj hlob ntawm tib neeg kev vam meej.
Cov kabmob yog cov khoom lag luam ntawm kev txawj ntse ntawm peb cov poj koob yawm txwv thaum ub thiab tau ua lub luag haujlwm tseem ceeb, yog tias zais, lub luag haujlwm hauv keeb kwm ntawm kev lag luam.
Kev loj hlob keeb kwm ntawm bearings
Bearings yog kev txhawb nqa rau cov neeg kho tshuab kis tau tus mob thiab yog ib qho tseem ceeb lav rau kev ua haujlwm, kev ua haujlwm thiab kev ua haujlwm ntawm tus tswv tsev. Lawv raug hu ua "kev sib koom ua ke" ntawm lub tshuab. Nws lub luag haujlwm tseem ceeb yog xa cov quab yuam thiab kev txav thiab txo qis kev sib txhuam.
Kuv ntseeg tias ob peb tus neeg paub tias lub hauv paus pib ntawm bearings yog Tuam Tshoj, thiab nws muaj keeb kwm ntau txhiab xyoo.
// Keeb kwm ntawm bearings //
Raws li cov ntaub ntawv keeb kwm yav dhau los, lub log qeeb tau yug los 8, 000 xyoo dhau los, lossis nws tau hloov mus rau theem. Thaum Lub Peb Hlis Ntuj xyoo 2010, lub hauv paus ntoo lauj kaub tais diav tau tshawb pom ntawm Kuahuqiao qhov chaw kab lis kev cai, uas tau lees paub tias Tuam Tshoj lub tshuab lauj kaub tais diav ua ntej ob lub pas dej ntawm West Asia ntau dua 2,000 xyoo. Qhov no txhais tau hais tias Tuam Tshoj pib siv bearings ua ntej tshaj West Asia, los yog hais tias nws siv lub hauv paus ntsiab lus ntawm bearings. .
Cov ntoo lauj kaub tais diav log puag unearthed los ntawm Kuahuqiao kab lis kev cai site
Lub hauv paus ntawm lub log ntoo no zoo li lub platform trapezoidal. Muaj ib lub tog raj kheej me me nyob rau hauv nruab nrab ntawm lub rooj sab sauv, uas yog lub axis rau lub lauj kaub tais diav turntable. Lub turntable txhawb kev sib hloov los ntawm cov ncej ntawm lub rooj voj voog, uas yog tus qauv ntawm cov kabmob.
Schematic daim duab ntawm kev ua hauj lwm ntawm lub lauj kaub tais diav ntawm lub Kuahuqiao kab lis kev cai site
Lub log qeeb hla lub pas dej choj yog thawj zaug uas tib neeg tau siv lub log thiab qag tshuab los ua cov tais diav, thiab nws kuj yog thawj zaug uas cov kev tshawb nrhiav keeb kwm qub tau siv cov kabmob.
Schematic daim duab ntawm lub restoration ntawm lub log qeeb ntawm lub Northern Wei Dynasty nyob rau hauv Datong City, Shanxi xeev
1 Lub Tsheb Pit 2 Lub Tsheb Piles 3 Lub Tsheb Npav 4 Log Disk 5 Log Disk Center Point
Tom qab ntawd, tib neeg pom tias cov log ntoo nrog cov kab uas loj dua tau siv rau kev thauj mus los sai dua, yog li cov diameters ntawm cov log ntoo tau loj dua thiab loj dua, maj mam hloov mus rau hauv cov log nrog axles, uas tsim cov qauv qub ntawm lub log. Tau kawg, lub log kuj yog ib qho kev tsim ntawm peb lub teb chaws Suav.
Thaum lub sijhawm Yellow Emperor lub sijhawm 4,700 xyoo dhau los, thawj lub tsheb hauv tib neeg keeb kwm tau nkag mus rau theem ntawm keeb kwm.
Huangdi ua tsheb sib tw, yog li nws hu ua Xuanyuan.
Xuan yog ib hom ntawm lub tsheb npog nyob rau hauv ancient sij hawm, thiab ncej yog lub hauv paus ntsiab lus ntawm lub tsheb.
Qhov tshwm sim ntawm zawv zawg bearings tso rau pem hauv ntej qhov xav tau rau lubrication los yog txhawb txoj kev loj hlob ntawm tribology.
Phau Ntawv Nkauj yog Tuam Tshoj txoj kev sau paj huam thaum ntxov. Yog li ntawd, paj huam tej zaum tshwm sim los ntawm Zhou Dynasty thaum ntxov mus rau nruab nrab Lub Caij Nplooj Ntoos Hlav thiab Caij Nplooj Ntoos Hlav, uas yog, txij li xyoo pua 11 BC mus rau xyoo pua 6 BC. Nyob rau hauv "Phau Ntawv Nkauj · Beifeng · Quanshui" tshooj, muaj ib lo lus hais tias: "Nqa rog thiab nqa txoj cai, rov qab lub tsheb nrog cov lus zoo heev. Kom mus txog rau lub ncov ntawm Wei, nws yog flawless thiab txaus ntshai?" Txoj cai lij choj tau txhais tias "qhov kawg ntawm lub qag" nyob rau hauv ancient sij hawm. Siv cov tsheb qub, nws yog qhov sib npaug rau qhov peb hu ua tus pin tam sim no. Nws hla lub qag kawg thiab tuaj yeem "khi" lub log los kho lub log axially; thiab "grease" yog cov roj nplua nyeem, thiab "rov qab" txhais tau tias mus tsev. , "Mai" txhais tau tias ceev ceev. Txhais ua Suav niaj hnub no, cov kab lus paj huam no yog: Siv roj los lubricate lub qag, xyuas tus pin tom kawg ntawm lub qag, tsav tsheb ntev, thiab xa kuv mus tsev. Ceev nrooj rau koj tus neeg saib xyuas hauv nroog! Tsis txhob ua rau kuv muaj kev txhaum.
Kev txiav txim
Lub Qin (221-206 BC) thiab Han dynasties muaj rudimentary qauv ntawm bearings thiab bearing sau ntawv.
Vim yog kev coj ua ntawm kev tsim thiab siv cov cuab yeej siv cuab yeej cuab tam hauv Zhou, Qin, thiab Han dynasties, hauv qee cov kab lis kev cai tseem ceeb ntawm Qin thiab Han dynasties, cov lus tshwj xeeb ntsig txog bearings nrog cov ntsiab lus meej thiab kev sau ntawv paub tab tau sau tseg thiab feem ntau. siv. Ntawm lawv, cov ntau ntau yog "axis" Lo lus xws li "釭" thiab "锏" nrog rau cov ntsiab lus-predicate lus xws li "axis txais" (saib "Shuowen Jiezi"). Nyob rau niaj hnub Nyij Pooj, cov lus sau ntawm cov kabmob tseem yog "axis". Hauv Qin Dynasty sau ntawv hauv Xiaozhuan, muaj "axis", "bearing", "锭" thiab "tshuab". Lub ntsiab lus tseem ceeb ntawm cov cim hauv Han Dynasty tau piav qhia tias "axis" txhais tau tias tuav lub log, "cheng" txhais tau tias ua haujlwm lossis tau txais, "釭" txhais tau tias cov hlau hauv lub hub, thiab "tshuab" txhais tau tias cov hlau hauv qag. Nws tuaj yeem pom tau tias Qin thiab Han Dynasties tau tsim cov kev coj noj coj ua thiab kev sau ntawv.
Lub nplhaib-zoo li tus bronze khoom nrog sab hauv kab noj hniav pom nyob deb nroog Shaanxi, Suav teb
(2 xyoo pua BC)
Yuan Dynasty (1206-1367) Jianyi siv cylindrical dov bearing tshuab
Lub simplified kheej kheej yog simplified los ntawm armillary kheej kheej. Lub armillary sphere yog ib qho cuab yeej siv rau kev soj ntsuam astronomical. Nws cov khoom tuaj yeem muab faib ua ob ntu: cov khoom txhawb nqa thiab cov khoom txav. Cov khoom txhawb nqa suav nrog Shui Fu, zaj ncej, ob chav Tianjing rings, equatorial ib rings, thiab Tianzhu nyob hauv nruab nrab ntawm Shui Fu. Daim duab hauv qab no pom tau hais tias qhov tseem ceeb txhawb kev kho kom zoo nkauj ntawm Armmillary Sphere.
Simplified qauv ntawm armillary kheej kheej thiab schematic daim duab ntawm nws cov khoom
// Modern bearing development //
Lub hnub yug ntawm thawj txheej ntawm domestic bearings nyob rau hauv niaj hnub Tuam Tshoj
Thaum ntxov xyoo 1937, Wang Ruibao thiab Ma Genbao tau coj "1511" cov kabmob sab hauv thiab sab nrauv, tawb, cov pob steel thiab lwm yam qauv los ntawm Wuxi mus rau Qin Furong, tus tswv ntawm Qin Fuxing hardware stall, thiab tau npaj lub tswv yim ntawm kev sib koom tes tsim bearings. Qin Furong pom tias cov qauv zoo ib yam li cov khoom Nyij Pooj NSK, thiab tau hnov los ntawm Wang thiab Ma tias tus nqi ntawm cov hlau rings forged los ntawm railway steel tsuas yog ib feem peb ntawm cov khoom Japanese. Nws xav tias nws muaj txiaj ntsig, yog li nws ua lub nplhaib hlau hauv Mantingfang. Qin Fuxing Machinery Factory tau qhib ntawm No. 48, "Yueguili", Zhilong, nrog Wang Ruibao thiab Ma Genbao ua kev qhia.
Cov cuab yeej siv nyob rau lub sijhawm ntawd tsuas yog ob txoj siv tshuab dhos, ob lub tshuab xuas nrig ntaus, thiab lub tshuab drilling. Cov lathes kuj tau siv los ua grinders. Ntxiv nrog rau cov khoom siv hlau txawv teb chaws, cov ferrules yog forged los ntawm Gaoshun Tai Hlau Kav. Cov khoom siv yog railway steel thiab quenched nrog sodium hydride. Lub retainer yog ua los ntawm cov ntawv hlau thiab yog blued nrog potassium nitrate. Nyob rau tib lub sijhawm, plug gauges thiab steel tapes yog siv los ntsuas cov cuab yeej. Nws yog thawj domestically tsim teeb nyob rau hauv Shanghai. "1308" ob kab ntawm tus kheej-aligning pob bearing tau yug los nyob rau hauv cov xwm txheej yooj yim. Qhov no kuj yog thawj txheej ntawm domestic bearings nyob rau hauv Tuam Tshoj, thiab cov khoom hom yog SRF.
Qin Fuxing Hardware Ncej dab tshos Hlau Hoobkas
Los ntawm 1937 txog 1945, ntau tshaj kaum lub rooj cob qhia suav nrog Qin Fuxing Hardware Factory, Shanghai Jinchang Hlau Factory, Rongtai Tshiab Tshuab Hoobkas, Qin Fuxing Tshuab Hoobkas, Jinxing Hlau Hoobkas, Yuan Xingchang Tshuab Hoobkas, Jincheng Tshuab Hoobkas, thiab lwm yam. yog li tso lub hauv paus rau Qhov no nteg lub hauv paus rau Shanghai lub teb chaws bearing ntau lawm.
Tuam Tshoj cov kabmob tau dhau los ntawm keeb kwm ntev, tab sis tseem muaj txoj hauv kev ntev mus rau hauv kev loj hlob thiab muaj zog.
Thoob ntiaj teb
// Keeb kwm ntawm lub ntiaj teb bearing txoj kev loj hlob //
Hais txog lub hauv paus chiv keeb ntawm txawv teb chaws bearings, qhov no tuaj yeem taug qab mus rau lub sijhawm ancient Egyptian.
Daim ntawv thaum ntxov ntawm linear motion bearings yog ib kab ntawm cov ntoo rods muab tso rau hauv qab crowbar. Cov thev naus laus zis no tuaj yeem rov qab mus rau kev tsim kho ntawm Great Pyramid ntawm Giza, txawm tias tsis muaj pov thawj tseeb. Niaj hnub nimno linear motion bearings siv tib lub hauv paus ntsiab lus ua haujlwm, tshwj tsis yog cov khoom siv qee zaum siv rolls.
Lub sijhawm pib
Los ntawm lub log hnyav axles thiab tshuab cuab yeej spindles rau precision saib qhov chaw, rotating bearings yog xav tau nyob rau hauv ntau daim ntawv thov.
Qhov yooj yim swivel bearing yog lub tes tsho bearing, uas yog ib qho yooj yim bushing sandwiched ntawm lub log thiab qag.
Qhov kev tsim no tau hloov tom qab los ntawm cov kabmob dov, uas hloov cov thawj bushings nrog ntau lub cylindrical rollers, txhua qhov dov lub luag haujlwm zoo li lub log sib cais. Qhov ntxov tshaj plaws dov kabmob nrog lub tawb muab tso rau hauv kev siv tau tsim los ntawm watchmaker John Harrison hauv xyoo 1760 los ua H3 chronograph.
Nyob rau hauv lub xyoo pua 17th, Galileo tau piav qhia ntxov tshaj plaws ntawm "taw pob" lossis "lub tawb pob" pob bearings.
Rau lub sijhawm ntev, kev teeb tsa ntawm cov kabmob ntawm lub tshuab tsis tau paub. Thawj patent rau pob grooves yog nyob rau hauv 1794. Ib lub tuam txhab hlau hu ua Philip Vaughan hauv Carmarthen, Wales, siv pob bearings ua qag bearings rau carriages. Nws tsis yog txog thaum xyoo 1950 thiab 1960s uas tib neeg siv pob bearings ua qag bearings rau carriages. Pob bearings yog dav siv nyob rau hauv lub shafts ntawm cov me nyuam txoj kev lom zem-mus-rounds, kiv cua shafts, tshuab phom turrets ntawm warships, armchairs, tsheb kauj vab thiab lwm yam khoom siv.
Xyoo 1883, FAG tus tsim Friedrich Fisher tau npaj lub tswv yim ntawm kev siv cov tshuab tsim nyog los zom cov pob steel ntawm tib qhov loj thiab qhov tseeb roundness. Lub hauv paus rau kev tsim kev lag luam ywj pheej tau muab tso rau.
Daim duab ntawm lub pob zeb tsim los ntawm Friedrich Fischer
Nyob rau hauv 1895, Henry Timken tsim thawj tapered menyuam bearing. Peb xyoos tom qab, nws tau txais patent thiab tsim lub tuam txhab Timken.
Xyoo 1907, Sven Wingquist ntawm SKF bearing Hoobkas tau tsim cov pob bearings uas niaj hnub ua ntej tshaj plaws.
Lub sijhawm ntawd, txawm hais tias qhov kev tsim ntawm cov kabmob tau nyob ib puag ncig rau qee lub sijhawm, kev tsim khoom ntawm cov kabmob tau nyuam qhuav pib los ntawm khawb thiab tsis zoo heev.
Duab Sven Wingquist tus thawj kos duab ntawm tus kheej-aligning pob bearing nyob rau hauv 1907
lub sij hawm loj hlob
Ob lub ntiaj teb ua tsov ua rog txhawb kev txhim kho kev lag luam tub rog. Txoj hauj lwm ntawm bearings hauv kev lag luam tub rog tau dhau los ua qhov tseem ceeb. Ua ke nrog txoj kev loj hlob sai ntawm kev tshawb fawb thiab thev naus laus zis, kev ruaj khov nyob rau lub sijhawm luv luv tom qab Tsov Rog Ntiaj Teb Zaum 1 thiab kev xav tau ceev rau caj npab thaum Tsov Rog Ntiaj Teb Zaum II, lub ntiaj teb kev lag luam bearing tau loj hlob sai thiab ntau yam ntawm bearings tau nce. Nws yog dav siv nyob rau hauv tsheb, aircraft, tso tsheb hlau luam thiab armored tsheb, tshuab cuab yeej, twj, meters, tsheb kauj vab, tshuab xaws thiab ntau lwm yam teb.
Thaum Tsov Rog Ntiaj Teb Zaum Ob, nrog rau kev hloov kho tshiab ntawm txoj kev ua tsov rog thiab tib neeg txoj kev nkag siab thiab kev mloog rau cov kabmob, ntau lub tebchaws tau xav tau ceev ceev ntawm cov kabmob thiab mob siab rau tsim kom muaj kev lag luam bearings. Muaj coob tus bearing factories tau tshwm sim nyob rau hauv ntau lub teb chaws.
Qhov no tuaj yeem pom tsuas yog los ntawm kev xaiv cov ntsiab lus thaum Allied rog tawm tsam German Nazis.
Kev foob pob loj loj, rhuav tshem cov yeeb ncuab txoj kev coj ncaj ncees thiab kev lag luam hauv ib qho kev poob qis, yog ib qho kev tawm tsam ntawm Ntiaj Teb Tsov Rog II. Thaum tawm tsam lub hom phiaj nyob rau hauv lub teb chaws Yelemees, cov Allies ntseeg hais tias nyob rau hauv thiaj li yuav ua rau kom tsis muaj zog ntawm tus yeeb ncuab txoj kev sib ntaus sib tua, lawv yuav tsum ua kom pom tseeb bombing ntawm German submarine manufacturing nroj tsuag thiab lub hauv paus, aircraft tsim nroj tsuag, bearing factories, roj refineries, hluavtaws roj hmab nroj tsuag thiab tsheb. Lub tuam txhab bearing tau raug xaiv los ua lub hom phiaj tseem ceeb ntawm kev foob pob. Lub nroog me me ntawm Schweinfurt, qhov chaw German bearing factories tau tsom, tau tawg ntau ob zaug hauv lub Yim Hli thiab Lub Kaum Hli 1943.
Lub foob pob tawg tau ua los ntawm US ace Yimth Air Force. Nazi Lub Tebchaws Yelemees Tus Thawj Kav Tebchaws Albert Schupe tau lees paub tias kev foob pob thaum Lub Yim Hli txo qis German cov kabmob ntau lawm los ntawm 38%, thaum cov txiaj ntsig ntawm kev foob pob thaum Lub Kaum Hli ua rau 65% ntawm cov tuam txhab lag luam raug puas tsuaj.
Lub sijhawm txhim kho
Nrog rau txoj kev loj hlob sai thiab tshiab technologies xws li aerospace, hluav taws xob computers, kho qhov muag thiab electromagnetic instruments, thiab precision machinery, lub ntiaj teb no bearing kev lag luam, uas embodies cov theem ntawm niaj hnub science thiab technology, tau nkag mus rau ib theem ntawm kev txawj ntse innovation nyob rau hauv manufacturing technology. , kev loj hlob sai ntawm ntau yam, kev txhim kho ntawm kev ua tau zoo thiab kev ua tau zoo, thiab nce kev paub tab thiab zoo meej Ib lub sijhawm tshiab hauv keeb kwm.
Thaum lub sij hawm no, muaj txhua yam ntawm bearings nrog tag nrho-encompassing siv. Tam sim no, muaj kaum tawm txhiab tus kabmob ntau yam. Cov kabmob loj ntxiv yog qhov loj li 38 meters, thiab cov kabmob me me yog me me li ob peb feem kaum ntawm ib millimeter. Muaj cov kab ib kab, ob kab, thiab ntau kab bearings, cov menyuam bearings, koob cov menyuam bearings, tapered bearings, unlubricated bearings, self-lubricating bearings, angular contact bearings, kis bearings, universal sib koom bearings, ultra-nyias. phab ntsa bearings, hub unit bearings, cua bearings, linear bearings, superconducting bearings, sib nqus levitation Bearings thiab lwm yam.
Kev lag luam bearing tau dhau los ua kev vam meej. Raws li ib feem, me me bearings muaj ib tug tshwj xeeb thiab loj-scale lag luam uas yuav tsis raug ignored. Kev lag luam bearing tau nce mus rau hauv nws txoj kev muaj koob meej.
