Cov lus piav qhia tshwj xeeb ntawm cov lus xaus ntawm Swedish SKF bearings:
(1) Sab hauv tsim
ACD - lub kaum sab xis yog 25 degrees.
B - lub kaum sab xis yog 40 degrees.
CC -lub kaum sab xis yog 12 degrees.
CD -lub kaum sab xis yog 15 degrees.
YOG -BE hom bearing nrog lub kaum sab xis ntawm 40 degrees, cov pob steel loj, thiab iav fiber reinforced nylon 6.6 tawb.
Ob chav kab angular hu rau pob bearing
A -tus qauv tsim rau bearings nrog ib txoj kab uas hla ntawm qhov tsawg dua los yog sib npaug li 90 hli, tsis muaj pob loading qhov sib txawv, thiab iav fiber reinforced nylon 6.6 tawb.
E -Muaj lub pob qhov chaw nres nkoj ntawm ib sab ntawm cov kabmob, uas tuaj yeem tuav cov pob hlau ntau dua, yog li nws muaj peev xwm ntau dua radial thiab axial load-bearing muaj peev xwm.
Spherical cov menyuam bearings
CAC, ECAC, CA, ECA -Cov qauv tsim no yog siv rau cov kabmob loj loj, thiab cov chais yog symmetrical.
CC, SE, ES -Cov bearings no muaj symmetrical rollers thiab tsis muaj flanges ntawm lub nplhaib puab.
E - yog tus qauv tsim tshaj plaws ntawm SKF. Lub nplhaib sab nraud ntawm E-hom bearing muaj cov roj zawj thiab peb lub qhov roj. Nyob rau hauv rooj plaub no, W yuav tsum tau muab ntxiv rau cov lus xaus kom paub qhov txawv.
Cylindrical cov menyuam bearing
B-- bearings nrog rollers nrog kho qhov chaw (tag nrho cov menyuam bearings).
B4--bearing nplhaib nto thiab cov menyuam nto raug kho (tag nrho cov menyuam bearings).
EC --Sab hauv geometry ntawm cov kabmob tau raug txhim kho kom muaj peev xwm ua haujlwm ntau dua. Lub flange thiab cov menyuam kawg lub ntsej muag muaj kev sib cuag zoo thiab lubrication thiab tuaj yeem tiv taus ntau dua axial loads.
(2) Sab nrauv tsim
CA, CB, CC -universal txuam ib leeg-kab angular hu rau pob bearings uas tuaj yeem sib phim thiab ntsia tau rau hauv txhua txoj kev (hauv series, ntsej muag rau lub ntsej muag lossis rov qab mus rau sab nraud). Thaum npaj rov qab los yog lub ntsej muag rau lub ntsej muag, kev tshem tawm sab hauv ua ntej axial installation yog piv nrog tus nqi ib txwm: me (CA), ib txwm (CB), loj (CC).
-2F - Sab nraud spherical pob bearing nrog plua plav-repelling tuav rings ntawm ob sab.
-2FF-Sab nraud spherical pob bearing nrog ua ke plua plav-repelling retaining rings ntawm ob sab.
G - Universal txuam ib kab angular hu rau pob bearing. Thaum teem lub ntsej muag los yog rov qab mus rau sab nraud, muaj qee yam preload ua ntej kev teeb tsa hauv cov kabmob.
GA -Thaum teem lub ntsej muag rau lub ntsej muag thiab rov qab mus rau sab nraub qaum, muaj qhov sib dua ua ntej hauv cov kabmob.
GB -Thaum teem lub ntsej muag rau lub ntsej muag thiab rov qab mus rau sab nraud, muaj qhov nruab nrab preload hauv cov kabmob.
Download high-txhais watermark-dawb
GC -Thaum teem lub ntsej muag rau lub ntsej muag thiab rov qab mus rau sab nraud, muaj qhov hnyav dua preload hauv cov kabmob.
K - Tapered qhov, taper 1:12.
K30 - Tapered qhov, taper 1:30.
-LS -Ib sab ntawm cov kabmob muaj qhov sib tiv tauj, thiab tsis muaj lub tes tsho sealing ntawm lub nplhaib puab.
-2LS -Cov kabmob muaj LS seals ntawm ob sab.
N - Muaj ib qho tuav tuav ntawm lub nplhaib sab nraud ntawm cov kabmob.
NR -Nws muaj qhov tuav tuav thiab lub nplhaib tuav ntawm lub nplhaib sab nraud ntawm cov kabmob.
N2 -Muaj ob lub diametrically opposed notches ntawm lub chamfer ntawm lub nplhaib txheej.
PP -Cov kabmob (txhawb nqa cov kabmob, cov kabmob cam follower) muaj cov ntsaws ruaj ruaj ntawm ob sab.
RS -Cov kabmob (koob cov menyuam bearings) muaj cov roj hmab hluavtaws lossis polyurethane tiv thaiv cov ntsaws ruaj ruaj ntawm ib sab.
-RS 1 -Ib sab ntawm cov kabmob muaj steel-lined hluavtaws roj hmab tiv thaiv foob.
-2RS1 -Ob sab ntawm cov kabmob muaj RS1 ntsaws ruaj ruaj.
-2RS -Ob sab ntawm cov kabmob (kab koob rau cov kabmob) muaj RS cov ntsaws ruaj ruaj.
-RZ -Ib sab ntawm cov kabmob muaj steel-lined hluavtaws roj hmab uas tsis muaj kev sib txhuam.
-2RZ -Ob sab ntawm cov kabmob muaj RZ cov ntsaws ruaj ruaj.
X - 1. Qhov loj me hloov kho kom tau raws li cov qauv ISO; 2. Cylindrical dov nto (txhawb cov menyuam bearing, cam follower bearing).
Z -Ib sab ntawm cov kabmob muaj plua plav npog (tsis muaj kev sib txhuam).
-2Z -Ob sab ntawm cov kabmob muaj plua plav npog.
-ZN -Ib sab ntawm cov kabmob muaj plua plav npog thiab lwm sab muaj qhov tuav tuav ntawm lub nplhaib sab nraud.
-2ZN -Ob sab ntawm cov kabmob muaj plua plav npog thiab lub nplhaib sab nraud muaj qhov tuav tuav.
-2NR -Ib yam li -ZN, nrog lub nplhaib tuav.
-2ZNR -Ib yam li -2ZN, nrog lub nplhaib tuav.
(3) Kab
Yuav kom piav qhia txoj kev coj ntawm lub tawb hauv cov kabmob, tsab ntawv
A lossis B tuaj yeem muab ntxiv tom qab lub tawb nqa khoom. A txhais tau hais tias lub tawb yog coj los ntawm lub nplhaib sab nraud; B txhais tau hais tias lub tawb yog coj los ntawm lub nplhaib puab. Lub tawb tsis muaj qhov qhia tau yog coj los ntawm cov khoom dov.
F -khoom tawb ua los ntawm steel los yog tshwj xeeb cam khwb cia hlau.
J - steel phaj stamping tawb.
M -light alloy khoom tawb.
MP -tooj dag lub tawb.
P -iav fiber ntau nylon 6.6 txhaj tshuaj molded tawb.
TN -engineering yas txhaj tshuaj molded tawb.
Y - tooj liab phaj stamping tawb.
V - tag nrho cov menyuam kabmob (tsis muaj tawb).
VH -Tag nrho cov kabmob ntxiv (cylindrical roller bearing) tsim los ntawm cov menyuam sib dhos uas tsis yog sib cais.
Qib kam rau ua
/CLN -Sib npaug rau ISO kam rau ua qib 6X, siv rau metric tapered roller bearings (dav kam rau ua kom txo tau).
/CLO -Sib npaug rau ISOO kam rau ua, siv rau nti tapered menyuam bearings.
/CL3 - Sib npaug rau ISO3 kam rau ua, siv rau nti tapered menyuam bearings.
/CL7A -Tapered roller bearings uas ua tau raws li cov qauv sib txawv ntawm cov kabmob.
/CL7C - Tapered roller bearings uas ua tau raws li cov qauv tshwj xeeb rau kev sib txawv bearing configuration.
/P4 - Dimensional thiab rotational raug raws li ISO4 kam rau ua (ntau tshaj P5).
/P4A - Dimensional raug raws li ISO4 kam rau ua, thiab kev sib hloov qhov tseeb yog sib npaug rau AFBMA tus qauv ABEC9.
/P5 - Dimensional rotational raug raws li ISO5 kam rau ua (qhov tseeb dua P6).
/PA9A - Dimensional thiab rotational raug yog sib npaug rau AFBMA tus qauv ABEC9 qib.
/PA9B -Dimensional raug yog sib npaug rau AFBMA tus qauv ABEC9 qib, thiab kev sib hloov qhov tseeb yog siab dua PA9A.
/SP - Dimensional raug yog hais txog P5, thiab qhov tseeb rotational yog hais txog P4.
/UP -Dimensional raug yog hais txog P4, thiab qhov tseeb rotational yog hais txog P4.
Cov kabmob clearance
/C1 - Kev tshem tawm raws li tus qauv rau pawg 1, thiab qhov kev tshem tawm tsawg dua li pawg 2.
/C2 - Kev tshem tawm ua tau raws li tus qauv rau pawg 2, thiab qhov kev tshem tawm tsawg dua li pawg 0.
/CO - Clearance ua tau raws li tus qauv rau pab pawg 0, tshem tawm hauv cov cai, tsis qhia.
/C3 - Clearance ua tau raws li tus qauv rau pawg 3, thiab qhov clearance ntau dua li pawg 0.
/C4 - Clearance ua tau raws li tus qauv rau pawg 4, thiab qhov clearance ntau dua li pawg 3.
/C5 - Clearance ua tau raws li tus qauv rau pawg 5, thiab qhov clearance ntau dua li pawg 4.
Thaum tus lej tshem tawm tau ua ke nrog cov kabmob kam rau qib code P4, P5 lossis P6, qhov kev tshem tawm code C tuaj yeem raug tshem tawm.
Piv txwv li: P6+C2=P62
Cov kev cai tshwj xeeb
/Q - Qhov tseeb tshaj plaws nyob rau hauv geometry thiab nto roughness (rau tapered menyuam bearings).
/Q66 - Qib kev vibration tsawg dua li cov qauv qib dav dav, thiab kev vibration ncov tsawg dua li cov qauv qib dav dav.
/QE5 - Ua tau raws li cov qauv tshwj xeeb rau lub cev muaj zog, nrog qhov ntev thiab qhov tseeb ntawm kev sib hloov mus txog P6. Tsis tshua muaj suab nrov.
/QE6 - Ua tau raws li cov qauv ntawm lub cev muaj zog, tsis tshua muaj suab nrov.
Bearing configuration
/DB -Ob txoj kab sib sib zog nqus sib sib zog nqus sib sib zog nqus npas kabmob, ib-kab angular hu rau pob bearings lossis ib-kab tapered cov menyuam bearings tau nruab rau hauv khub rov qab. Tus lej tom qab DB qhia qhov axial clearance lossis preload loj thaum lub sij hawm installation.
A -Lub teeb preload (angular hu rau pob bearing).
B -Preload loj dua Ā (angular contact ball bearing).
C - Ua ntej loj dua B (angular contact ball bearing).
CA -Internal clearance yog me me (qhov tob tob los yog angular contact pob bearing).
CB -Internal clearance yog loj dua CA (qhov tob tob los yog angular contact pob bearing).
CC -Internal clearance yog loj dua CB (qhov tob groove pob bearing).
CG -"Zero" clearance (tapered roller bearing).
C... - Tshwj xeeb axial internal clearance Tus lej tom qab CC qhia qhov loj ntawm axial clearance.
GA -Sib sib zog nqus preload (dav groove pob bearing).
GB - Preload ntau dua CA (qhov tob groove pob bearing).
G... -Tshwj xeeb preload (tus naj npawb tom qab G qhia qhov loj ntawm preload).
/DF -Ob tug khub ib leeg-kab sib sib zog nqus groove pob bearings, ib-kab angular hu rau pob bearings los yog ib-kab tapered menyuam bearings teem lub ntsej muag. DF tuaj yeem ua raws li tsab ntawv ib yam li tom qab DB.
/DT -Ob khub sib sib zog nqus groove pob bearings, ib leeg-kab angular hu rau pob bearings los yog ib-kab tapered menyuam bearings teem nyob rau hauv series.
Kev kho cua sov
Sab hauv thiab sab nraud ntawm cov bearings yog stabilized thiab tuaj yeem ua haujlwm ntawm qhov kub thiab txias:
/S0 - Txog li 150 degrees Celsius.
/S1 - Mus txog 200 degrees Celsius.
/S2 - Txog li 250 degrees Celsius.
/S3 - Txog li 300 degrees Celsius.
/S4 - Txog li 350 degrees Celsius.
Lubricant replenishment
/W - Tsis tuaj yeem ntxiv cov roj nplua nyeem (tsis muaj roj nplua nyeem thiab lub qhov roj).
/W20 - Lub nplhaib sab nraud ntawm cov kabmob muaj peb lub qhov roj nplua nyeem.
/W33 - Lub nplhaib sab nraud ntawm cov kabmob muaj cov roj nplaum thiab peb lub qhov roj.
/W33X - Lub nplhaib sab nraud ntawm cov kabmob muaj cov roj nplaum thiab rau lub qhov roj.
Lubricant
Cov kab lus txuas ntxiv siv los txheeb xyuas hom roj uas muaj nyob hauv cov kabmob muaj ib pawg ntawv thiab ob tus lej. Tsab ntawv qhia qhov kub thiab txias, thiab ob tus lej hauv qab no qhia tias cov roj siv tiag tiag. Common Letter pawg yog raws li nram no:
/HT--Cov roj kub kub (-20 degrees Celsius rau +130 degrees Celsius).
/LHT--Tsawg / siab kub roj (-40 degrees Celsius rau +140 degrees Celsius).
/LT--Tsawg kub roj (-50 degrees Celsius rau +80 degrees Celsius).
/MT--Cov roj kub nruab nrab (-30 degrees Celsius txog 110 degrees Celsius).
MT suffix qhia tias cov kabmob tshwj xeeb siv cov roj uas tsis yog tus qauv. Thaum cov roj nyob hauv cov kabmob txawv ntawm tus qauv sau tus nqi (25% ~ 30% ntawm qhov chaw dawb hauv cov kabmob), nws raug txheeb xyuas los ntawm tsab ntawv ntxiv:
A:Tus nqi roj tsawg dua li tus qauv.
B:Cov roj ntau ntau dua li tus qauv.
C:Cov roj ntau dua B.
Lwm yam ntxwv
Tsab ntawv V thiab lwm tsab ntawv (xws li VA) ua ke nrog peb tus lej raug siv los txheeb xyuas qhov sib txawv ntawm tus qauv tsim uas tsis tuaj yeem hais los ntawm lwm cov lej tom qab uas twb muaj lawm. Piv txwv li:
/VA201--Kiln tsheb bearings.
/VA301--Cylindrical roller bearings rau traction motors.
If you have other bearing questions, please contact alita@sgsabearing.com