SIFT BEARING STORE CATALOG

30228-AFAGTapered Roller

30228-A is a FAG tapered roller bearing, bore 140 mm, O.D. 250 mm, width 42 mm, dynamic rating 420 kN. Dimensions, drawing, interchanges and price.

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Bore d140mm
Outside dia. D250mm
Width B42mm
Dynamic Cr420kN
Static C0r570kN
Limiting speed2,600rpm
Weight8.81kg
Cr / C0r0.74
Mean dia. dm195mm

Original catalogue drawing - FAG Schaeffler HR 1, page 488

30228-A FAG Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D250 mmBore d140 mmWidth B42 mmCup width C36 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter1405.5118
DOutside diameter2509.8425
BInner-ring / bearing width421.6535
TOverall assembly width45.751.8012
CCup / outer-ring width361.4173

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)140
Outside dia. D (mm)250
Width B (mm)42
Overall width T (mm)45.75
Cup width C (mm)36
Inner-ring OD d1 (mm)187

Load ratings & speeds

Basic dynamic load rating Cr (lbs)94420
Basic static load rating Cor (lbs)128141
Basic dynamic load rating Cr (N)420000
Basic static load rating C0r (N)570000
Basic dynamic axial rating Ca (N)9
Fatigue limit load Cur (N)67000
Factor e0.44
Factor Y1.38
Factor Y00.76
Limiting speed nG (rpm)2,600
Reference speed nB (rpm)2,030
Effective load centre a (mm)48

Weight

Weight (kg)8.81

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)4
Shaft shoulder da (mm)163
Shaft shoulder db (mm)154
Housing shoulder Da (mm)236
Housing shoulder Db (mm)234
Housing fillet ra max (mm)4
Fillet rb max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 800 rpm
4105,0001022,117
670,0003928,177
852,5001,02421,333
1042,0002,15444,884
1528,0008,323173,406

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 420,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandFAG
Source catalogueFAG / Schaeffler Rolling Bearings HR 1
Catalogue pagep.488 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6228NSKBall1402504237,400 lbs8.89
7228BNSKBall1402504244,300 lbs8.8
228NSKCylindrical Roller1402504267,100 lbs8.165
NU228ENSKCylindrical Roller14025042485 kN9.38
HR30228NSKTapered Roller14025042480 kN8.74
HR30228JNSKTapered Roller1402504287,700 lbs8.741
7228NSKPrecision / Angular Contact14025042240 kN8.92
7228A5NSKPrecision / Angular Contact1402504250,900 lbs7.911
7228CNSKPrecision / Angular Contact1402504253,600 lbs7.843
30228TimkenTapered Roller14025042474 kN8.92

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6228FAGBall14025042188 kN8.07
QJ228-N2-MPAFAGBall14025042315 kN9.69
N228-E-M1FAGCylindrical Roller14025042460 kN9.3
N228-E-XL-M1FAGCylindrical Roller14025042460 kN9.3
NJ228-E-M1FAGCylindrical Roller14025042460 kN9.46
NJ228-E-XL-M1FAGCylindrical Roller14025042460 kN9.46
NU228-E-M1FAGCylindrical Roller14025042460 kN9.31
NU228-E-XL-M1FAGCylindrical Roller14025042460 kN9.31

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
30228-XLFAGTapered Roller14025042490 kN8.8

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30328FAGTapered Roller14030062590 kN20.5
30328-XLFAGTapered Roller14030062690 kN20.3
31328-XFAGTapered Roller14030070690 kN23.1
31328-X-XLFAGTapered Roller14030070830 kN23.2
32028-XFAGTapered Roller14021045340 kN5.39
32028-X-XLFAGTapered Roller14021045400 kN5.4
32028-X-XL-DF-A250-300FAGTapered Roller140210None690 kN11.1
32228-AFAGTapered Roller14025068650 kN14

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