Kev txiav txim siab ntawm cov kabmob. Classification thiab marking ntawm bearings

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kev tsim ntau yam ntawm cov tshuab niaj hnub no suav nrog ntau lub pob nrog cov khoom sib hloov. Cov no yog txhua yam levers, log, nruas. Kev sib txhuam ntawm qhov chaw uas tshwm sim hauv cov chav no tuaj yeem ua rau kev puas tsuaj ntawm cov ntaub ntawv thiab kev ua haujlwm sai ntawm lub tshuab. Txhawm rau tiv thaiv qhov no los ntawm qhov tshwm sim, cov khoom tig tau txuas nrog cov kabmob.

Cov ntsiab lus ntawm hom no tuaj yeem muaj qhov sib txawv, qhov ntau thiab tsawg, thiab cov qauv ntawm kev ua haujlwm. Cov qauv tsim ntawm cov khoom zoo li no tau tshwm sim hauv lawv daim ntawv lo. Deciphering bearings los ntawm cov npe no yog qhov yooj yim heev.

Ob hom tseem ceeb

Tag nrho cov khoom ntawm hom no tam sim no siv nyob rau hauv ntau yam ntawm mechanisms yuav muab faib ua peb pawg loj. Bearings ntsia nyob rau hauv rotating sib dhos:

• slip;
• rolling;
• needle.

Tag nrho cov khoom lag luam no yog qhov xav tau zoo thiab tuaj yeem siv tau ob qho tib si hauv kev lag luam thiab hauv cov cuab yeej siv tshuab, tsheb, thiab lwm yam.

Plain bearings

Nyob rau hauv qhov chaw ntawm hom no, kev sib txhuam yog txo los ntawmlubrication account. Xws li bearings yuav muaj xws li:

• lub cev nrog lub qhov thiab lub bushing nias rau nws;
• los ntawm rooj plaub uas tshem tau thiab ob lub tabs.

Cov kabmob no yog tsim los ntawm cov khoom sib txawv. Lawv lub cev feem ntau yog ua los ntawm cov hlau. Lub tes tsho los yog tabs feem ntau yog ua los ntawm tooj liab lossis lwm yam alloys zoo sib xws. Ua tsaug rau qhov kev tsim no, kev sib txhuam ntawm cov kabmob yog txo qis heev. Txhawm rau kom tsis txhob ua kom tiav nws, grooves yog tsim nyob rau hauv cov ntaub ntawv ntawm cov khoom ntawm hom no, rau hauv uas cov roj yog poured. Thaum tus ncej tig, lub tom kawg yog rub hauv qab hlau. Yog li ntawd, ib tug roj zaj duab xis yog tsim. Nws nqa tus ncej thiab nws tsis sib cuag nrog lub liner lawm.

Qhov zoo thiab qhov tsis zoo

Plain bearings yog me ntsis yooj yim rau kev tsim dua li dov bearings. Lawv tuaj yeem siv tau rau hauv ntau hom nodes. Piv txwv li, xws li bearings feem ntau yog siv rau hluav taws xob motors.

Qhov zoo ntawm cov kabmob dawb, ntawm lwm yam, suav nrog cov txiaj ntsig hauv qab no:

• ua haujlwm ntsiag to;
• muaj peev xwm siv tau hauv cov khoom hnyav hnyav.

Dhau li ntawm no, qhov zoo ntawm bearings ntawm hom no yog qhov zoo ntawm kev tshem tawm wobble.

Tab sis cov khoom ntawm ntau yam no, tau kawg, muaj lawv qhov tsis zoo. Lub ntsiab tsis zoo ntawm xws li bearings yog qhov nyuaj ntawm kev saib xyuas. Yuav kom xws li ib feem ua hauj lwm rau lub sij hawm ntev thiab ua nws lub luag hauj lwm zoo, nws yog muab tso rau hauvroj da dej los yog siv twj tso kua mis los muab cov roj tsis tu ncua.

Tsis tas li, qhov tsis zoo ntawm cov bearings yog:

• siv tsis tau nyob rau hauv cov chav uas muaj cua sov heev (roj yuav ignite);
• xav tau siv cov hlau tsis muaj hlau kim hauv kev tsim kho;
• nce qhov cuam tshuam;
• oversized nyob rau hauv axial direction.

Rolling bearings

Cov khoom zoo li no tam sim no nrov dua li cov kabmob dawb. Cov hlau tsis muaj hlau kuj tuaj yeem siv rau hauv cov khoom no, tab sis lawv feem ntau tseem ua los ntawm cov hlau. Kev sib txhuam hauv cov khoom ntawm hom no yog txo vim muaj cov khoom siv hlau, cov chais, cones lossis, piv txwv li, koob hauv lawv cov qauv tsim. Cov ntsiab lus no tau muab tso rau hauv dov bearings hauv grooves ntawm lub tsev thiab cov kabmob ruaj khov.

Qhov zoo ntawm cov khoom no yog raws li hauv qab no:

• tus nqi me me kom kov yeej kev sib txhuam (ob peb txhiab tus ntawm cov khoom thauj ntawm tus ncej);
• kev kho yooj yim.

Cov roj hauv cov kabmob no feem ntau yog hloov pauv ntawm kev kho tom ntej ntawm kev sib dhos. Qhov tsis zoo ntawm cov khoom ntawm hom no suav nrog, ua ntej ntawm tag nrho cov, qhov tseeb tias lawv tsis tuaj yeem dais loj axial loads. Yog tias siv ntau dhau, cov chais lossis cov pob hauv cov kabmob no tuaj yeem tawg tau yooj yim.

koob khoom

Hom ntu no ua ke nrog qhov zoo ntawm dov thiab zawv zawg bearings. Nruab nrab ntawm lub cev thiab cov ncej ruaj khov, nyob rau hauv cov ntaub ntawv no, nyias ntev koob ntawm ib tug cylindricaldaim ntawv. Nrog kev sib hloov qeeb ntawm kev sib dhos, xws li cov kabmob ua haujlwm ntawm lub hauv paus ntsiab lus ntawm lub pob bearing. Ntawd yog, cov koob lawv tus kheej, nrog rau lub cev yob, yog lub luag haujlwm los txo kev sib txhuam hauv nws.

Ntawm qhov ceev ceev, hom khoom no pib ua raws li cov kabmob. Ntawd yog, cov koob hauv nws nres dov thiab pib txav mus rau hauv qhov nruam nrog rau cov roj hauv ib txheej nyias.

Txawm tias qhov tseeb tias cov khoom no, qhov tseeb, ib hom kev sib xyaw ua ke, hauv kev faib tawm lawv feem ntau hu ua ib pawg ntawm cov kabmob dov. Lawv siv feem ntau qhov chaw loj lossis qhov sib txawv ntawm cov loads tshwm sim hauv cov nodes. Cov no tuaj yeem yog, piv txwv li, lub tshuab dav hlau, lub tshuab dov loj, thiab lwm yam.

Kev faib tawm ntawm cov kabmob dov

Cov khoom zoo li no tuaj yeem muab faib ua pawg raws li cov hauv qab no:

• nyob rau hauv kev taw qhia ntawm perceived load;
• nyob ntawm qhov loj piv;
• ntawm qhov raug thiab dov;
• raws li cov duab ntawm cov khoom dov.

Tsis tas li, cov khoom lag luam no tuaj yeem raug cais raws li txoj kev tsim khoom cais. Cov khoom ntawm cov khoom zoo li no tau tshwm sim hauv lawv cov cim. Kev txiav txim siab ntawm dov bearings suav nrog, piv txwv li, cov yam ntxwv xws li series, hom, cov chav kawm raug.

Pab pawg los ntawm kev pom kev pom

Nyob rau hauv qhov no, dov bearings tuaj yeem yog:

• radial;
• tawv ncauj;
• angular contact.

Cov khoom lag luam thawj zaug yog qhov nrov tshaj plaws thiab siv dav heev. Radial bearingsperceive mas lub load qhia perpendicular rau lub axis ntawm lub ncej.

Thrust cov khoom lag luam hauv kev lag luam, kev lag luam tsheb muaj me ntsis tsawg. Xws li bearings perceive tsuas yog axial load. Feem ntau, cov khoom ntawm ntau yam no yog siv hauv metallurgy thiab engineering.

Thrust-radial bearings tuaj yeem nqa ob qho tib si axial thiab radial loads. Muaj tsawg kawg yog ob kab ntawm dov cov khoom hauv cov khoom zoo li no - hauv cov dav hlau perpendicular.

Size classification

Hais txog qhov no, kuj muaj ntau pawg ntawm cov khoom zoo sib xws. Nyob ntawm seb qhov loj npaum li cas ntawm cov nplhaib sab hauv thiab sab nrauv, kev faib tawm ntawm cov kabmob yog raws li hauv qab no:

• lub teeb ntxiv;
• light;
• lub teeb dav;
• medium;
• nruab nrab-dav.

Tsis tas li, cov khoom hnyav ntawm hom no tuaj yeem siv rau hauv cov khoom siv thiab cov txheej txheem. Hauv qab no yog daim duab loj ntawm ib kab kab bearings.

Nyob ntawm cov koob, nyob rau hauv cov ntaub ntawv no, nrog tib txoj kab uas hla ntawm lub nplhaib puab, txoj kab uas hla ntawm ib sab los yog nws qhov dav yuav txawv. Los ntawm qhov dav, dov bearings tau muab faib ua:

• tshwj xeeb nqaim;
• narrow;
• normal;
• wide;
• xeeb dav.

Lub pob bearing loj daim ntawv saum toj no yog rau lub teeb thiab nruab nrab series.

Kev cais los ntawmqhov tseeb

Rolling bearings tau teeb tsa hauv cov nodes uas ua haujlwm tau zoo ntawm tag nrho cov txheej txheem tag nrho yog nyob ntawm. Nyob rau tib lub sijhawm, cov khoom zoo li no tau tsim ua raws li cov qauv uas tau teev tseg los ntawm GOST. Rolling bearings nyob rau hauv cov nqe lus ntawm qhov raug yuav muab faib los ntawm:

• size;
• rotation parameters.

Nyob rau hauv thawj rooj plaub, qhov zoo ntawm cov khoom yog txiav txim los ntawm lub deviations ntawm lub sab thiab puab diameters, raws li zoo raws li qhov dav ntawm lub nplhaib. Kev sib hloov qhov tseeb yog ntsuas los ntawm qhov degree ntawm runout nyob rau hauv cov lus qhia radial thiab lateral. Tam sim no, cov chav kawm hauv qab no ntawm dov bearings yog qhov txawv ntawm qhov kev hwm no:

• 0 - ib txwm nrog lub nplhaib sab hauv (txog 20 µm);
• 6 - nce qhov tseeb nrog runout (txog 10 microns);
• 5 - siab raug nrog runout (txog 5 µm);
• 4 - tshwj xeeb tshaj yog qhov raug siab (txog 3 microns);
• 2 - ultra-siab precision (txog 2.5 microns).

Kev lag luam kuj tseem ua kom ntxhib, nrog kev khiav tawm ntawm ntau dua 20 microns, dov bearings ntawm chav kawm 7 thiab 8. Tus nqi rau cov khoom siv no yog txiav txim siab los ntawm cov chav kawm raug qhov sib hloov. Qhov siab dua, tus nqi coj tus nqi ntau dua.

Kev faib tawm raws li cov duab ntawm cov khoom dov

Nyob ntawm cov duab, cov ntsiab lus kuj yuav txawv. Feem ntau hauv kev lag luam thiab kev lag luam automotive, pob bearings yog siv. GOST txhais lawv qhov ntev thiab qhov tseeb ntawm chav kawm. Cov khoom zoo li no suav hais tias yog qhov yooj yim tshaj plaws los tsim thiab ua haujlwm siab. Cov bearings no tso cai rau, ntawm lwm yam, ib tug loj angular tshaj tawm. Lawv lub ntsiab kom zoo dua yogtus nqi qis. Qhov tsis zoo ntawm cov kabmob ntawm hom no suav nrog qhov tseeb tias lawv tsis tuaj yeem nqa lub nra hnyav.

Cov khoom Roller tau nce lub peev xwm thiab muaj peev xwm tiv taus kev poob siab zoo. Txawm li cas los xij, cov khoom zoo li no kiag li tsis tso cai rau cov ncej distortions. Nyob rau hauv rooj plaub no, lub rollers pib ua hauj lwm nrog cov npoo, uas ua rau kom ceev ceev ntawm cov kabmob. Cov khoom ntawm hom no tuaj yeem ua haujlwm ntau zaus ntev dua li pob khoom.

Cov khoom nrog twisted rollers yog heev undemanding rau kev sib dhos raug. Lawv yog siv nyob rau hauv cov ntaub ntawv uas radial loads ntawm tej yam tshwm sim nyob rau hauv lub node. Cov kabmob ntawm ntau yam no feem ntau me me.

Tapered roller bearings yog siv rau hauv cov ntawv thov uas ob qho tib si radial thiab unilateral axial loads ua ib txhij. Nruab lawv ntawm nruab nrab thiab qis ncej speeds. Xws li cov khoom siv feem ntau yog siv tib yam li thrust radial pob bearings. GOST, tau kawg, txiav txim siab qhov ntev ntawm cov khoom no.

Tus kheej-aligning bearings yog siv thaum lub misalignment ntawm lub nplhaib tuaj yeem ncav cuag li 2-3 degrees. Ntawm lwm yam, cov khoom zoo li no tso cai rau me ntsis axial load.

Nyob rau hauv kev tsim ntawm cov kabmob uas yooj yim tshaj plaws, tsuas muaj ib kab ntawm dov cov ntsiab lus. Tab sis nyob rau hauv kev lag luam, ntau complex khoom ntawm hom no kuj siv tau - 2-4 nyob rau hauv-line.

Qee zaum nyob rau hauv ntau yam ntawm cov nodes thiab mechanisms tuaj yeem ntsia tau thiab dov bearings ntawm tus tsim tshwj xeeb - ringless. Rau xws li cov khoom siv lub cevrollers yog nyob ncaj qha nruab nrab ntawm lub tsev thiab cov ncej. Qhov tsis zoo ntawm cov qauv no yog, ntawm chav kawm, feem ntau qhov nyuaj ntawm kev sib dhos thiab disassembly.

Transcript

Deciphering rolling bearings yog qhov tseem ceeb los txiav txim nws cov yam ntxwv. Txhawm rau kom cov neeg siv khoom tuaj yeem yuav khoom rau nws tus kheej raws nraim cov kabmob uas nws xav tau, cov khoom zoo li no raug xaiv los ntawm cov tuam ntxhab hauv txoj kev tshwj xeeb. Hauv kev kos npe ntawm cov khoom zoo li no ib txwm muaj ntau tus lej uas koj tuaj yeem txiav txim siab nws cov chav kawm thiab cov koob.

Kev txiav txim siab ntawm dov bearings yog ua tiav, raws li cov qauv, ntawm sab xis mus rau sab laug. Thawj thiab tus lej thib ob qhia txog lub cheeb ntawm cov khoom. Txhawm rau txiav txim siab qhov loj me, tsuas yog muab tus lej no los ntawm 5.

Raws li tus lej thib peb, koj tuaj yeem pom cov kab npoo sab nraud ntawm cov kabmob, uas yog, nws cov koob. Cov tom kawg raug xaiv raws li:

• ultralight - 8 lossis 9;
• lub teeb ntxiv - 1 lossis 7;
• teeb - 2 lossis 5;
• nruab nrab - 3 lossis 6;
• hnyav - 4.

Tus lej thib plaub los ntawm sab xis hauv qhov cim tuaj yeem siv los txiav txim siab hom dov kabmob:

• 0 - radial ib kab kab;
• 1 - ob kab kab radial pob;
• 2 - radial nrog cylindrical luv rollers;
• 3 - ob-kab radial roller;
• 4 - koob;
• 5 - radial nrog twisted rollers;
• 6 - angular contact pob;
• 7 - angular contact roller taper;
• 8 - thrust pob;
• 9 - thrust roller.

Tus lej thib tsib thiab thib rau ntawm txoj cai tuaj yeem siv los txiav txim siab tus qauv tsim ntawm cov kabmob uas tsis muaj kev cuam tshuam loj rau nws qhov kev ua tau zoo. Cov khoom zoo li no tuaj yeem yog, piv txwv li, tsis sib cais, muaj kev tiv thaiv ntxhua khaub ncaws, zawj ntawm lub nplhaib sab nrauv, thiab lwm yam.

Tus lej xya ntawm sab xis hauv qhov cim cim qhia cov kabmob hauv qhov dav.

Tau kawg, thaum yuav, koj tuaj yeem pom cov chav kawm raug ntawm cov khoom zoo li no tau yooj yim. Deciphering lub npe ntawm domestic bearings ntawm lub hauv paus no kuj yog ib qho yooj yim kiag li teeb meem. Nyob rau sab laug ntawm cov kev txiav txim siab ntawm cov lej hauv cov cim ntawm cov khoom no los ntawm kev khiav ceev muaj lwm tus lej. Nws nyob ntawm nws qhov tseeb yog txiav txim siab.

Bearings ntawm ib chav kawm ntawm 0 txog 6 tuaj yeem siv tau ntau yam ntawm cov nodes, tib lub sijhawm, cov khoom lag luam ntawm hom no, cim nrog tus lej 0, feem ntau siv rau hauv qhov chaw ua haujlwm ntawm cov khoom siv ntau zaus., zoo heev bearings feem ntau yog siv, cim 4-5. Cov khoom 2 feem ntau yog siv hauv cov twj hygroscopic.

piv txwv

Yog li, kev txiav txim siab lub cim ntawm pob bearings lossis lwm yam yog qhov yooj yim heev. Lub hom phiaj ntawm cov khoom ntawm hom no yog siv rau ib qho ntawm cov nplhaib. Ntawm collapsible bearings, nws yog affixed rau ob qhov chaw.

Cov khoom tsis muaj cim, piv txwv li, 67210 yuav ua raws li hauv qab no:

• diameter - 105=50mm;
• 2 - lub teeb series;
• 7 - angular contact conical;
• 6 - diametral gap raws kab lus tseem ceeb.

Kev txiav txim siabbearing los ntawm tus lej feem ntau yog tsim los ntawm txoj kev no. Txij li thaum tsis muaj dab tsi qhia nyob rau sab laug los ntawm ib qho hyphen hauv qhov cim ntawm cov khoom no, nws cov chav kawm raug yuav yog xoom. Tab sis rau lwm yam bearings, nws lub npe, ntawm chav kawm, tuaj yeem affixed.

Plain bearing classes

Cov khoom lag luam zoo li no tuaj yeem faib los ntawm:

• load direction;
• ntsiab cai ntawm qhov tshwm sim ntawm nqa hauv cov roj txheej;
• case type.

Raws li thawj qhov tshwj xeeb, cov khoom zoo li no tau muab faib ua radial thiab thrust. Zoo li dov bearings, qhov chaw ntawm hom no tuaj yeem nqa lub load radially lossis hauv axial kev taw qhia. Qee zaum, cov nodes siv cov khoom ntawm no ntau yam nrog kev txhawb nqa ua ke. Rau cov bearings no, axial loads tshwm sim ntawm tshwj xeeb ridges los yog plhaub kawg.

Kev faib raws li lub hauv paus ntsiab lus nqa

Nyob rau hauv qhov no, cov kabmob dawb yog qhov txawv:

• hydrodynamic;
• hydrostatic.

Nyob rau hauv thawj rooj plaub, lub siab tshaj plaws nyob rau hauv cov roj txheej yog tsim vim nws nkag mus rau hauv lub wedge gaps thaum lub sij hawm tus txheeb ze txav ntawm qhov chaw. Xws li cov kabmob muaj qhov tsim qauv yooj yim. Cov khoom siv hydrostatic sib txawv ntawm cov roj siab yog tsim nyob rau hauv lawv thaum lub twj tso kua mis khiav.

Ntau yam los ntawm lub cev hom

Cov kabmob uas yooj yim tshaj plaws ntawm hom - lag ntseg - muaj nyob rau hauv lawv cov qauv tsim ib lub tes tsho uas ua los ntawm cov khoom siv los tiv thaiv kev sib txhuam. Kuj detachable khoom ntawm nontau yam. Rau cov kabmob zoo li no, lub tes tsho sib cais yog nruab nrab ntawm lub hau thiab lub tsev, txuas nrog bolts. Nws ntseeg tias cov khoom ntawm hom no yooj yim dua rau siv.

Yuav ua li cas liners tuaj yeem yog

Cov qauv no ntawm cov kabmob tiaj tus feem ntau, raws li tau hais, ua los ntawm tooj liab. Txawm li cas los xij, kev lag luam kuj tseem tsim cov khoom zoo li no nrog cov bushings ua los ntawm cov hlau los yog cam khwb cia hlau nrog ib txheej ntxiv ntawm kev sib txhuam alloy.

Lubrication Modes

Yuav kom lub tiaj tus kabmob ua haujlwm ntev thiab ua haujlwm tau zoo, nws yuav tsum tau ua haujlwm yuav luag txhua hnub. Xws li cov khoom xav tau lubrication tsis tu ncua. Cov khoom hauv qab no tuaj yeem siv rau cov kabmob dawb:

• kua ntxhia thiab hluavtaws roj;
• calcium sulfonate lossis lithium xab npum raws li roj;
• khoom - molybdenum disulfide, graphite.

Gasostatic bearings kuj tseem siv tau rau hauv ntau chav nyob thiab cov txheej txheem. Hauv cov khoom zoo li no, nitrogen lossis inert gases hloov cov roj nplua nyeem. Cov khoom ntawm hom no feem ntau yog siv rau hauv cov txheej txheem sib xyaw ua ke.

Qhov tseeb, muaj peb hom ntawm lubrication ntawm cov kabmob dawb:

• ciam teb;
• semi-kua;
• kua.

Nyob rau hauv thawj rooj plaub, lub lubrication ntawm qhov chaw tiv tauj tshwm sim vim cov roj zaj duab xis tsim nyob rau hauv lub tsau ncej ntawm lub trunnion. Ntug lubrication yog suav hais tias yog ib qho kev ua haujlwm tsis zoo. Ntawmnws siv nyob rau hauv cov kabmob yog kev sib cuag ntawm ib tug loj tus naj npawb ntawm irregularities. Tsis tas li ntawd, thaum siv txoj kev no, cov viscosity ntawm cov roj poob.

Thaum lub sijhawm ntawm cov txheej txheem ntawm cov kua roj ib nrab, cov roj txheej yog tsim los ntawm cov ntawv xov xwm thiab cov bushing raws li cov ncej tig. Nyob rau hauv cov ntaub ntawv no, kev sib cuag ntawm irregularities nyob rau hauv lub bearing xyaum tsis tshwm sim. Cov ncej siv cov txheej txheem no ntab hauv qab lub zog ntawm cov roj.

Thaum siv cov txheej txheem ua kua lubrication, lub plhaub bearing thiab cov ntawv xov xwm sib cais tag nrho los ntawm cov roj txheej. Kev sib cuag ntawm microroughnesses hauv qhov no tsis tshwm sim txhua. Yog li ntawd, lub tshuab lubrication no tuaj yeem suav tias yog qhov zoo tshaj plaws.

Ntshuam bearings

Cov khoom ntawm hom no tau tsim thoob plaws ntiaj teb kom yuav luag tib tus qauv. Imported bearings rau mechanism units siv nyob rau hauv Lavxias teb sab kev lag luam feem ntau haum ib yam nkaus li zoo li domestic sawv daws yuav. Tab sis cov khoom muab los ntawm txawv teb chaws tau sau npe, ntawm chav kawm, nyob rau hauv ib txoj kev sib txawv kiag li. Lub npe ntawm cov khoom no feem ntau muaj ntau tus lej thiab cov ntawv Latin. Deciphering lub designations ntawm imported bearings yuav ua tau raws li cov rooj tshwj xeeb.

Piv txwv li, bearing designations FAG 6203-C-2RSR-TVH-L178-C txhais cov hauv qab no:

• 6203 - tus qauv loj (17x40x12);
• 2RSR - cov kabmob muaj roj hmab-hlau foob ntawm ob sab;
• TVH - cov khoom no lub tawb yog ua los ntawm polyamide;
• L178 - cim rau hom thiab tus nqi sivlubricants;
• C3 - txhais tau tias cov kabmob no tau nce radial clearance.

Tau kawg, cov tuam txhab txawv teb chaws muab ntau hom bearings rau kev lag luam hauv tsev. Tab sis qhov nrov tshaj plaws nyob rau hauv Russia yog tseem imported pob, cov menyuam thiab koob bearings.

Lub teb chaws twg tuaj yeem tsim tau hauv

Feem ntau, cov khoom siv hauv tsev ntawm hom no tuaj yeem pom muaj muag hauv peb lub tebchaws. Qhov thib ob feem ntau bearings nyob rau hauv Lavxias teb sab kev ua lag luam yog bearings ntawm manufacturing lub teb chaws Tuam Tshoj. Peb kuj muag cov khoom tsim nyob rau hauv Tebchaws Europe hauv peb lub tebchaws.

Cov lus teb rau lo lus nug ntawm cov tuam txhab bearing twg zoo dua yog qhov tsis meej - ua ntej ntawm tag nrho cov, cov no yog cov tuam txhab European. Piv txwv li, cov khoom ntawm hom no, muab rau Lavxias teb sab kev lag luam los ntawm cov tuam txhab xws li SKF (Sweden), NTN Corp (Nyiv), TimkenCompany (Tebchaws Asmeskas), tsim nyog cov kev tshuaj xyuas zoo los ntawm cov neeg siv khoom.