Cov32217 ibbearing yog ib hom tapered roller ntau heevbearing. Nov yog cov lus qhia ntxaws ntxaws rau nws cov ntaub ntawv tseem ceeb:
1. Hom thiab qauv yooj yim
- Hom: Tapered cov menyuam bearing. Hom kabmob no yog tsim los tiv thaiv ob qho tib si radial loads (forces perpendicular mus rau lub ncej) thiab loj unidirectional axial loads (ceev raws li tus ncej kev taw qhia).
- Structure: Nws muaj plaub yam tseem ceeb:
- Lub nplhaib puab: Lub khob hliav qab nrog ib txoj kab sib tw, mounted rau ntawm ncej.
- Lub nplhaib sab nraud: Ib lub khob nrog ib txoj kab sib tw, ntsia rau hauv cov kabmob vaj tse.
- Tapered rollers: Frustum-shaped dov cov ntsiab lus uas yob ntawm cov raceways ntawm sab hauv thiab sab nraud. Cov rollers feem ntau yog coj ncaj thiab sib cais los ntawm lub tawb.
- Cage: Feem ntau yog ua los ntawm cov hlau stamped, tig tooj dag, los yog engineering plastics, nws yog siv los sib cais cov chais thiab txo kev sib txhuam thiab hnav.
2. Qauv txhais lus (ISO Standard)
-32217 ib:
- 3: Sawv cev rau cov menyuam kabmob tapered.
- 22: Sawv cev rau qhov dimension series. Tshwj xeeb:
- Dav series: 2 (nruab nrab dav)
- Txoj kab uas hla: 2 (nruab nrab txoj kab uas hla)
- 17: Sawv cev txoj kab uas hla kab. Rau bearings nrog ib txoj kab uas hla≥20mm, luas = 17× 5 = 85 mm.
3. Main Dimensions (Standard Values)
-Txoj kab uas hla (d): 85 mm
- Sab nraud txoj kab uas hla (D): 150 mm
- Dav / qhov siab (T / B / C): 39 hli (Qhov no yog tag nrho qhov dav / qhov siab ntawm cov kabmob, piv txwv li, qhov kev ncua deb ntawm lub ntsej muag loj kawg ntawm lub nplhaib puab mus rau lub ntsej muag loj kawg ntawm lub nplhaib sab nraud.
- Sab hauv lub nplhaib dav (B): Kwv yees li 39 hli (feem ntau zoo ib yam li lossis ze rau T; xa mus rau cov lus qhia tshwj xeeb kom paub meej).
- Lub nplhaib sab nraud (C): Kwv yees li 32 hli (saib rau cov lus qhia tshwj xeeb kom paub meej).
- Sab hauv lub nplhaib me me tav txoj kab uas hla (d₁ ≈): Kwv yees li ntawm 104.5 hli (rau kev suav suav).
- Lub nplhaib sab nraud me me rib txoj kab uas hla (D₁ ≈): Kwv yees li 130 hli (rau kev teeb tsa suav).
- Sib cuag lub kaum sab xis (α): Feem ntau ntawm 10° thiab 18°, tus nqi tshwj xeeb yuav tsum tau kuaj xyuas hauv cov chaw tsim khoom bearing catalog. Lub kaum sab xis sib cuag txiav txim siab axial load-nqa peev.
- Fillet vojvoog (r min): Feem ntau, qhov tsawg kawg nkaus lub vojvoog ntawm ob sab hauv thiab sab nraud yog 2.1 hli (thaum lub sijhawm teeb tsa, yuav tsum tau saib xyuas tias lub fillet ntawm lub xub pwg nyom thiab cov kabmob hauv lub xub pwg yuav tsum tsis txhob me dua li tus nqi no).
4. Cov yam ntxwv tseem ceeb ntawm kev ua haujlwm
- Lub peev xwm thauj khoom siab: tshwj xeeb tshaj yog muaj zog hauv kev tiv thaiv unidirectional axial loads, thiab tuaj yeem dais loj radial loads. Cov rollers yog nyob rau hauv txoj kab kev sib cuag nrog cov raceways, uas ua rau muaj kev thauj khoom zoo.
- Kev sib cais: Lub nplhaib puab lub rooj sib dhos (lub nplhaib puab + cov menyuam + lub tawb) thiab lub nplhaib sab nraud tuaj yeem ntsia tau ntawm nws tus kheej, uas yooj yim heev rau kev txhim kho, kho, thiab tu.
- Xav tau kev sib koom ua ke: Txij li nws tsuas tuaj yeem dais unidirectional axial loads, nyob rau hauv lub sij hawm uas bidirectional axial loads yuav tsum tau borne los yog meej axial positioning ntawm lub ncej yog yuav tsum tau (xws li shafting), lub 32217 bearing feem ntau yuav tsum tau siv nyob rau hauv khub (lub ntsej muag-rau-lub ntsej muag, rov qab-rau-rov qab), los yog precisely configuration.
- Adjustable clearance: Los ntawm kev kho lub axial txheeb ze txoj hauj lwm ntawm lub puab thiab sab rings, lub internal clearance ntawm bearing los yog lub preload tau yooj yim kho kom tau qhov zoo tshaj plaws rigidity, rotation raug, thiab kev pab cuam lub neej.
- Kev sib hloov ceev: Qhov kev txwv ceev feem ntau yog qis dua qhov sib sib zog nqus groove pob bearings, tab sis nws tseem tuaj yeem ua tau raws li qhov xav tau ntawm feem ntau cov ntawv thov kev lag luam. Qhov tshwj xeeb txwv ceev yog nyob ntawm txoj kev lubrication, thauj khoom, hom tawb, thiab lwm yam.
- Kev sib txhuam thiab kub nce: Cov kev sib txhuam coefficient siab dua me ntsis ntawm cov pob bearings, thiab qhov kub thiab txias thaum ua haujlwm yuav siab dua me ntsis.
5. Kev ceev faj txog kev teeb tsa
- Paired siv: Raws li tau hais ua ntej, nws feem ntau yog ntsia hauv khub.
- Kho qhov kev tshem tawm / preload: Tom qab kev teeb tsa, txoj haujlwm axial yuav tsum tau ua tib zoo kho kom ua tiav qhov tsim tawm los yog ua ntej. Qhov no yog qhov tseem ceeb rau kev coj tus kheej thiab kev siv lub neej.
- Lub xub pwg nyom thiab vaj tse bore xub pwg qhov siab: Nws yog ib qho tsim nyog los xyuas kom meej tias qhov siab ntawm lub xub pwg nyom thiab lub xub pwg nyom ntawm lub xub pwg nyom yog txaus los txhawb lub nplhaib bearing, tab sis tsis siab dhau los cuam tshuam kev teeb tsa cov kabmob lossis cuam tshuam nrog lub vojvoog fillet. Lub xub pwg qhov ntev yuav tsum tau tsim nruj me ntsis raws li cov lus pom zoo hauv cov kabmob catalog.
- Lubrication: Txaus thiab tsim nyog lubrication (cov roj lubrication lossis roj lubrication) yuav tsum tau muab, vim tias lubrication muaj kev cuam tshuam zoo rau lub neej ua haujlwm.
6. Cov Ntawv Thov Kev Sib Tham
Tapered roller bearings yog dav siv nyob rau hauv lub sij hawm uas yuav tsum tau dais ua ke radial thiab axial loads, tshwj xeeb tshaj yog qhov twg axial loads loj:
- Gearboxes (automobile transmissions, industrial reducers)
- Tsheb qag (lub log hubs, sib txawv)
- Roll caj dab ntawm dov mills
- Mining tshuab
- Kev tsim kho tshuab
- Agricultural machinery
- Cov twj tso kua mis
- cranes
- Qee lub tshuab cuab yeej spindles
Post lub sij hawm: Aug-15-2025