Cov ntsiab lus dov yog radial dov bearings nrog cylindrical rollers. Cov txheej txheem sab hauv ntawm cylindrical roller bearing txais cov chais teem rau tib lub sijhawm, thiab spacers lossis spacers raug ntsia nruab nrab ntawm cov chais, uas tuaj yeem tiv thaiv qhov kev xav ntawm cov menyuam los yog kev sib txhuam ntawm cov chais, thiab tiv thaiv kom tsis txhob muaj kev sib hloov torque. [1]
Suav Lub Npe: Cylindrical Cov Menyuam Bearing. Lub npe txawv teb chaws: Alias: Lus Askiv Lub Npe: Cylindrical Cov Menyuam Bearing Daim Ntawv Thov: Cov Motors Loj thiab Nruab Nrab, Locomotives thiab Tsheb Loj Lub Luag Haujlwm: Txo kev sib txhuam
Taw qhia
Cylindrical cov menyuam bearing
Cylindrical rollers thiab raceways yog linear contact bearings. Load peev, feem ntau dais radial load. Kev sib txhuam ntawm cov khoom dov thiab cov tav ntawm lub nplhaib yog me me, uas yog tsim rau kev sib hloov ceev. Raws li seb lub nplhaib muaj tav los yog tsis, nws tuaj yeem muab faib ua ib kab cylindrical cov menyuam bearings xws li NU, NJ, NUP, N, NF, thiab ob kab cylindrical roller bearings xws li NNU thiab NN. Cov kabmob yog cov qauv uas lub nplhaib puab thiab lub nplhaib sab nraud tuaj yeem sib cais.
Cylindrical roller bearings tsis muaj tav ntawm lub nplhaib sab hauv lossis sab nraud, lub nplhaib sab hauv thiab sab nrauv tuaj yeem txav mus rau qhov kev taw qhia axial, yog li lawv tuaj yeem siv los ua cov kabmob dawb kawg. Cylindrical roller bearings nrog ob lub tav rau ntawm ib sab ntawm lub nplhaib puab thiab lub nplhaib sab nraud thiab ib tus tav ntawm ib sab ntawm lub nplhaib tuaj yeem tiv taus qee qhov kev thauj khoom axial hauv ib qho kev taw qhia. Feem ntau, steel stamping tawb yog siv, los yog siv tooj liab alloy tig khoom tawb. Txawm li cas los xij, kuj tseem muaj ib feem ntawm kev siv polyamide ua lub tawb.
Bearing Features
1. Cov menyuam thiab cov kev sib tw yog nyob rau hauv txoj kab kev sib cuag lossis cov kab sib txuas, thiab cov kabmob radial muaj peev xwm loj, uas yog tsim rau cov kabmob hnyav thiab kev cuam tshuam.
2. Kev sib txhuam coefficient me me, haum rau kev kub ceev, thiab qhov txwv ceev yog ze rau qhov sib sib zog nqus groove pob bearings.
3. Cov N thiab NU hom tuaj yeem txav mus rau axially, thiab tuaj yeem hloov kho rau cov kev hloov pauv ntawm tus txheeb ze ntawm cov ncej thiab cov vaj tsev uas tshwm sim los ntawm thermal expansion lossis installation yuam kev, thiab tuaj yeem siv los ua kev txhawb nqa dawb kawg.
4. Cov txheej txheem ua haujlwm rau lub tog raj kheej lossis lub qhov rooj yog siab. Tom qab cov kabmob raug ntsia, tus txheeb ze deflection ntawm lub nplhaib sab nraud yuav tsum tau tswj nruj me ntsis kom tsis txhob muaj kev sib cuag nrog kev ntxhov siab.
5. Lub nplhaib puab lossis lub nplhaib sab nraud tuaj yeem sib cais kom yooj yim installation thiab tshem tawm.
cov khoom nta
Lub cylindrical roller yog nyob rau hauv txoj kab kev sib cuag nrog cov raceway thiab muaj peev xwm loj radial load. Haum rau ob qho tib si hnyav thiab kev poob siab, nrog rau kev sib hloov ceev.
Cylindrical roller bearing raceways thiab dov cov ntsiab lus yog geometric. Tom qab kev txhim kho tsim, nws muaj peev xwm ntau dua. Kev tsim qauv tshiab ntawm tav thiab lub ntsej muag ntawm cov menyuam lub ntsej muag tsis tsuas yog txhim kho cov kabmob axial ntawm cov kabmob, tab sis kuj tseem txhim kho cov lubrication ntawm qhov chaw sib cuag ntawm cov menyuam kawg lub ntsej muag thiab cov tav. kev ua haujlwm ntawm bearings.
Kev faib ua qauv
Hom qauv
1. N0000 hom tsis muaj tav ntawm lub nplhaib sab nraud thiab NU0000 yam tsis muaj tav ntawm lub nplhaib puab. Cylindrical roller bearings tuaj yeem lees txais qhov loj radial loads, muaj kev txwv siab ceev, tsis txhob khi lub axial txav ntawm lub ncej lossis vaj tse, thiab tsis tuaj yeem txais axial load.
2. Cylindrical roller bearings NJ0000 thiab NF0000 nrog cov tav ntawm ob sab hauv thiab sab nraud tuaj yeem txwv tsis pub txav axial ntawm lub ncej lossis vaj tse nyob rau hauv ib qho kev taw qhia, thiab tuaj yeem txais qhov me me ib-txoj kev axial thauj khoom. NU0000 plus HJ0000, NJ0000 plus HJ0000, NUP0000 bearings tuaj yeem txwv tsis pub txav axial ntawm lub ncej lossis vaj tsev nyob hauv ob qho tib si hauv kev axial clearance cheeb tsam ntawm cov kabmob txawv teb chaws, thiab tuaj yeem lees txais me me bidirectional axial loads.
Bearing qeb
Cylindrical roller bearings yog cov kabmob sib cais, uas yooj yim heev rau nruab thiab disassemble. Cylindrical roller bearings tuaj yeem tiv taus qhov hnyav radial thiab tsim nyog siv rau hauv kev ua haujlwm siab.
Hom kabmob no tso cai rau lub kaum sab xis yuam kev (inclination) nruab nrab ntawm lub axis ntawm lub nplhaib puab thiab lub axis ntawm lub nplhaib sab nraud kom me me, tsuas yog 2 'rau 4'. Yog li ntawd, qhov tseeb machining ntawm lub ncej thiab lub rooj zaum bearing yog qhov siab. Txwv tsis pub, tsis sib xws load lossis kev ntxhov siab yuav yooj yim tshwm sim ntawm qhov chaw sib cuag ntawm txoj kev sib tw. Txawm li cas los xij, qhov tshwm sim ntawm kev ntxhov siab tuaj yeem raug txo los ntawm kev hloov kho cov kev sib cuag busbars ntawm rollers lossis raceways.
Cylindrical roller bearings tuaj yeem muab faib ua cov qauv sib txawv xws li ib-kab, ob-kab thiab ntau-kab cylindrical cov menyuam bearings raws li tus naj npawb ntawm kab ntawm dov cov ntsiab lus ntsia. Cov txheej txheem sib txawv ntawm cov kabmob kuj tseem cuam tshuam txog kev tsim ntawm txoj haujlwm ntawm tus tav. Ntawm lawv, feem ntau siv cylindrical roller bearings muaj cov ntaub ntawv hauv qab no:
Ib kab cylindrical cov menyuam bearings: Ib kab cylindrical cov menyuam bearings yog cov kabmob sib cais, uas yooj yim rau nruab thiab disassemble. Ob lub nplhaib tuaj yeem ua kom nruj, thiab cov kab sib txuas ntawm cov menyuam thiab txoj kev sib tw tuaj yeem raug kho kom txo qis kev ntxhov siab.
Ob chav kab cylindrical cov menyuam kabmob: Ob chav kab cylindrical cov menyuam kabmob belongs rau cov kabmob ntab, thiab nws qhov kev sib cais ua rau lub installation thiab disassembly yooj yim heev. Ob lub ferrules tuaj yeem muaj qhov nruj nruj. Ob chav kab cylindrical rau cov menyuam bearings tsis yog tso cai kom muaj lub kaum sab xis.
ib kab bearing
N, NU type
Lub nplhaib sab nraud ntawm N-hom bearing tsis muaj ribs, thiab muaj ribs ntawm ob sab ntawm lub nplhaib puab. Kev xaav nyob rau hauv ob qho tib si axial cov lus qhia ntawm tus ncej thiab cov kabmob vaj tse tuaj yeem tso cai. NU hom kabmob muaj tav ntawm ob sab ntawm lub nplhaib sab nraud thiab tsis muaj tav ntawm lub nplhaib puab. Nws tseem tuaj yeem tso cai rau kev hloov pauv ntawm cov ncej ntsig txog cov kabmob vaj tsev nyob hauv ob qho tib si axial cov lus qhia. Yog li ntawd, hom qauv no yog tsim rau siv raws li ib tug xoob kawg bearing.
NJ, NF type
NJ hom bearings muaj tav ntawm ob sab ntawm lub nplhaib sab nraud, thiab tav ntawm ib sab ntawm lub nplhaib puab. Muaj peev xwm tiv taus qee yam ntawm unidirectional axial load. NF hom muaj tav ntawm ib sab ntawm lub nplhaib sab nraud thiab tav ntawm ob sab ntawm lub nplhaib puab. Nws tuaj yeem dais ib qho nyiaj ntawm unidirectional axial load. Yog li ntawd, hom qauv no yog tsim rau siv raws li unidirectional axial nrhiav cov kabmob.
NUP, NFP type
NUP hom bearings muaj ribs ntawm ob sab ntawm lub nplhaib sab nraud, ib qho (tso) ib leeg tav ntawm ib sab ntawm lub nplhaib puab, thiab ib qho sib cais tiaj tus tav ntawm lwm sab. Muaj peev xwm tiv taus qee yam ntawm bidirectional axial load.
Lub nplhaib sab nraud ntawm NFP hom muaj ib qho (tso) ib leeg tav ntawm ib sab, thiab ib qho sib cais tiaj tus tav ntawm lwm sab, nrog tav ntawm ob sab ntawm lub nplhaib puab. Nws tuaj yeem tiv taus qee yam ntawm bidirectional axial load. Hom kev coj tus kheej no tuaj yeem txwv qhov kev hloov pauv ntawm tus ncej ntawm lub rooj zaum hauv ob qho tib si axial. Yog li ntawd, nws yog tsim nyog rau siv raws li ib tug ruaj kawg bearing.
NH (NJ plus HJ) type
NH hom kabmob yog kev sib xyaw ntawm NJ hom kabmob thiab HJ hom inclined tuav nplhaib. Vim tias lub nplhaib sab hauv ntawm NUP hom kabmob luv luv, thiab lub nplhaib tuav lub tiaj tiaj tsis ruaj khov, nws tsis yooj yim rau siv, thaum NH hom kabmob tuaj yeem siv qhov dav ntawm tag nrho cov nplhaib puab ntawm NJ hom kabmob kom muaj kev nruj dua. haum nrog tus ncej. Ntxiv mus, NH hom bearing yog yooj yim dua rau nruab thiab disassemble.
NH hom bearings tuaj yeem txwv qhov kev hloov pauv ntawm lub tog raj kheej rau cov kabmob lub rooj zaum hauv ob qho tib si axial cov lus qhia. Yog li ntawd, nws yog tsim nyog rau siv raws li ib tug ruaj kawg bearing.
Ob chav kab bearing
Ob chav kab cylindrical cov menyuam bearings muaj ob lub qauv: cylindrical puab lub qhov thiab conical puab lub qhov (cov kabmob rear code ntxiv rau K). Hom kabmob no muaj qhov zoo ntawm cov qauv compact, siab rigidity, loj bearing muaj peev xwm, thiab me me deformation tom qab loaded, thiab tshwj xeeb tshaj yog haum rau kev txhawb nqa ntawm lub tshuab cuab yeej spindles. Lub conical puab lub qhov tseem tuaj yeem ua lub luag haujlwm ntawm micro-hloov ntawm qhov kev tshem tawm, thiab tuaj yeem ua kom yooj yim rau cov qauv ntawm cov cuab yeej muab tso rau thiab yooj yim installation thiab disassembly. Feem ntau siv ob kab cylindrical cov menyuam bearings muaj cov ntaub ntawv hauv qab no:
NN, NNU type
Lub nplhaib sab nraud ntawm NN hom bearing tsis muaj tav, thiab muaj cov tav ntawm ob sab ntawm lub nplhaib puab thiab ib lub tav tav hauv nruab nrab. Kev xaav nyob rau hauv ob qho kev taw qhia nyob rau hauv axial kev taw qhia ntawm lub ncej thiab cov kabmob vaj tse tuaj yeem tso cai.
Lub nplhaib sab nraud ntawm NNU cov kabmob muaj cov tav ntawm ob sab thiab ib nrab tav tav hauv nruab nrab, thiab lub nplhaib puab tsis muaj tav. Kev xaav nyob rau hauv ob qho kev taw qhia nyob rau hauv axial kev taw qhia ntawm lub ncej thiab cov kabmob vaj tse tuaj yeem tso cai. Yog li ntawd, hom qauv no yog tsim nyog rau qhov txav kawg bearing. Lub tawb ntawm hom bearings no feem ntau yog lub tsheb tsim cov tawb.
NNF hom
NNF hom kabmob yog ob kab tag nrho ua ke cylindrical cov menyuam kabmob. Cov kabmob muaj ib lub nplhaib sab nraud nrog nruab nrab tav thiab ob lub nplhaib puab nrog ob sab tav. Cov rollers yog coj los ntawm cov tav ntawm lub nplhaib puab, thiab ob lub nplhaib sab hauv yog tuav ua ke los ntawm lub nplhaib clamping. Ntxiv nrog rau qhov loj radial load thiab axial load, tus qauv kuj tuaj yeem dais lub sijhawm dhau los, yog li nws feem ntau siv los ua cov kabmob ruaj khov.
Cov ntsaws ruaj ruaj yog siv rau ntawm ob sab ntawm NNF bearing. Cov kabmob muaj roj, thiab qhov ua haujlwm kub ntawm cov roj yog -50 degree rau ntxiv rau 110 degree, tab sis vim muaj kev txwv ntawm cov khoom sib khi, qhov ntsuas kub ntawm cov kabmob yog txwv rau -40 degree rau ntxiv 80 degree. Nyob rau hauv cov ntaub ntawv ntawm kev ua hauj lwm zoo, lub kaw NNF bearing tsis tas yuav tsum tau khaws cia. Yog hais tias lub bearing nyob rau hauv ib tug dej vapor los yog muaj kuab paug ib puag ncig rau ib ntev lub sij hawm, thiab nws yog khiav ntawm nruab nrab thiab siab ceev, nws yuav tsum tau kho los ntawm lub lubricating roj zawj thiab lubricating roj qhov ntawm lub nplhaib txheej. Bearings yog relubricated.
Plaub kab bearing
Plaub-kab cylindrical cov menyuam bearings yog tsuas yog siv nyob rau hauv txias thiab kub dov mills, blanking mills thiab lwm yam dov zeb machinery. Cov kabmob yog cov qauv sib cais, thiab cov kabmob ntawm lub nplhaib thiab cov khoom siv dov tuaj yeem sib cais tau yooj yim. Installation thiab disassembly yog yooj yim heev.
FC hom
FC hom kabmob muaj ob lub nplhaib sab nraud thiab lub nplhaib sab hauv. Txhua lub nplhaib sab nraud muaj ribs ntawm ob sab thiab ib nrab tav tav hauv nruab nrab, thiab lub nplhaib puab tsis muaj tav.
FCD hom
FCD hom kabmob yog qhov ua ke ntawm ob hom kabmob NN.
FC hom thiab FCD hom bearings tuaj yeem tso cai rau kev hloov pauv ntawm axial nyob rau hauv ob qho kev qhia ntawm tus ncej thiab cov kabmob vaj tsev. Yog li ntawd, hom qauv no yog tsim nyog rau qhov txav kawg bearing. Lub tawb ntawm hom kabmob no feem ntau siv lub cev tsheb 13:58.
Daim ntawv thov
Kev siv kabmob
Lub tshuab hluav taws xob loj thiab nruab nrab, dov Tshuag, tshuab cuab yeej spindles, sab hauv combustion engine, generators, roj turbines, gearboxes, dov mills, vibrating screen, thiab hoisting thiab thauj machinery, thiab lwm yam.
Chav kawm raug
Cylindrical roller bearings tuaj yeem muab faib ua PO, P6, P5, P4, P2 raws li qib raug. Cov qhabnias raug txheeb los ntawm qis mus rau siab.
Txoj kev kho cov radial clearance ntawm cylindrical cov menyuam bearings:
Kev xaiv ntawm cylindrical cov menyuam bearings yog ceev thiab yooj yim los muab, thiab cov ntaub ntawv radial load ntawm lub taag load yog raug los ntawm lub zos lub nplhaib raceway taag nplhaib thiab kis mus rau lub sib thooj ncej los yog bearing. Cov yam ntxwv ntawm qhov kev thauj khoom no yog qhov radial load vector yog qhov tshwm sim zoo li qub thiab lub nplhaib. Bearing lub nplhaib load yuav siv tau kuj xoob.
Lub rotational load yog lub resultant radial load ntawm tag nrho complement cylindrical menyuam bearing nplhaib ua rau lub nruas rotating nyob rau hauv lub circumferential kev taw qhia, thiab ntau qhov chaw ntawm kev sib hloov, xws li lub rotational load, uas yog rotated los ntawm lub resultant vector theem nplhaib radial. load, yog borne los ntawm lub rotational load. . Lub rotating load nplhaib yog nruj nreem haum, tshwj xeeb, lub load, xws li xaiv, yog lub teeb los yog hnyav, lub load ntawm qis ceev tsuas yog qee zaus, cov kabmob yog ua los ntawm cov khoom siv tawv thiab qhov roughness yog siab, rotating load. bearing nplhaib kuj tseem siv tau xoob.
Qhov thib peb load swings lub load los yog tsis-directional load, cov kev coj ua ntawm lub radial load ntawm lub nplhaib load yog tsis meej, nws yog yus muaj los ntawm cov nyhuv ntawm radial load vector nplhaib raceway ntawm lub nplhaib sib xyaw, cuam tshuam load, kev co. nyob rau hauv ib qho chaw, kev vibration, lub load, cov kev taw qhia ntawm uas yog viav vias, cov menyuam yuav tsum tau dais ib cheeb tsam, los yog lub load acting ntawm bearing, tus nqi load feem ntau hloov. Txhawm rau dais lub viav vias load-bearing, lub nplhaib sab nraud thiab lub voj voog, cov kabmob, thiab lub qhov yuav tsum tau siv hauv kev sib raug zoo.
Feem ntau siv txoj hauv kev los kho cov radial clearance ntawm tag nrho cov cylindrical cov menyuam bearings yog raws li nram no:
1. Rau sab clearance ntawm cylindrical thiab elliptical bearing bushes, nws tuaj yeem hloov kho los ntawm kev sib tsoo thiab khawb los yog txoj kev kho thiab khawb tom qab ntxiv padding thiab tig rau hauv nruab nrab ntawm cov kabmob.
2. Rau qhov kev tshem tawm sab saum toj ntawm cylindrical thiab elliptical bearing bushes, nws tuaj yeem hloov kho los ntawm kev sib tsoo thiab khawb los yog ntxiv cov ntaub qhwv rau cov kabmob nruab nrab lub ntsej muag thaum qhov xwm txheej tso cai.
3. Rau qhov ruaj khov bush nrog ntau cov roj wedges, nyob rau hauv txoj cai, nws tsis raug tso cai los kho thiab kho cov kabmob bush clearance. Yog tias qhov kev tshem tawm tsis tsim nyog, lub ncoo tshiab yuav tsum tau hloov.
4. Rau ntau cov roj wedge tiltable bearing pads, scraping pads tsis raug tso cai kho, thiab cov ntaub qhwv yuav tsum tau hloov thaum qhov kev tshem tawm tsis haum. Rau cov vuas nrog adjustable thickness, tus nqi ntawm cov vuas yuav raug kho los ntawm kev ntxiv ib tug stainless hlau ncoo nyob rau hauv lub adjustable block tom qab lub pobzeb, los yog los ntawm kev txo cov thickness ntawm cov kev hloov kho block. Nco ntsoov tias rau ntau cov roj wedge tiltable bearing pads, thickness yuam kev ntawm cov ntaub qhwv hauv tib pab pawg yuav tsum tsawg dua 0.01mm.
Ua tib zoo saib xyuas qhov teeb meem
Kev vibration
Hauv kev siv ib txwm, kev vibration yog qhov nkag siab zoo rau cov kabmob puas, spalling, indentation, xeb, tawg, hnav, thiab lwm yam. Yog li ntawd, los ntawm kev siv ib tug tshwj xeeb bearing vibration ntsuas ntsuas (frequency analyzer, thiab lwm yam), qhov loj ntawm qhov kev co yuav raug ntsuas, thiab cov xwm txheej tshwj xeeb ntawm qhov txawv txav yuav inferred los ntawm cov zaus faib. Qhov ntsuas qhov ntsuas sib txawv nyob ntawm qhov kev ua haujlwm ntawm cov kabmob lossis qhov chaw teeb tsa ntawm lub sensor, yog li nws yuav tsum tau soj ntsuam thiab sib piv cov ntsuas ntsuas ntawm txhua lub tshuab ua ntej los txiav txim siab tus qauv txiav txim.
kub
Qhov kub siab feem ntau qhia tau hais tias lub cylindrical roller bearing nyob rau hauv ib qho kev txawv txav. Cov kub kub kuj tseem ua rau muaj kev cuam tshuam rau cov roj lubricants. Qee zaum cov kabmob overheating tuaj yeem raug ntaus nqi rau cov roj nplua nyeem ntawm cov kabmob. Yog tias cov kabmob txuas txuas txuas ntxiv mus rau lub sijhawm ntev ntawm qhov kub siab tshaj 125 degree, cov kabmob lub neej yuav raug txo. Cov ua rau kub kub bearings muaj xws li: tsis txaus lubrication los yog ntau tshaj lubrication, impurities nyob rau hauv lub bearing raceway, siab txwv ceev heev, thiab lub sij hawm ntev overloading ntawm bearing.