SIFT BEARING STORE CATALOG

30238FAGTapered Roller

30238 is a FAG tapered roller bearing, bore 190 mm, O.D. 340 mm, width 55 mm, dynamic rating 530 kN. Dimensions, drawing, interchanges and price.

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Bore d190mm
Outside dia. D340mm
Width B55mm
Dynamic Cr530kN
Static C0r780kN
Limiting speed2,200rpm
Weight20.8kg
Cr / C0r0.68
Mean dia. dm265mm

Original catalogue drawing - FAG Schaeffler HR 1, page 488

30238 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. D340 mmBore d190 mmWidth B55 mmCup width C46 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 diameter1907.4803
DOutside diameter34013.3858
BInner-ring / bearing width552.1654
TOverall assembly width602.3622
CCup / outer-ring width461.811

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)190
Outside dia. D (mm)340
Width B (mm)55
Overall width T (mm)60
Cup width C (mm)46
Inner-ring OD d1 (mm)258

Load ratings & speeds

Basic dynamic load rating Cr (lbs)119149
Basic static load rating Cor (lbs)175351
Basic dynamic load rating Cr (N)530000
Basic static load rating C0r (N)780000
Basic dynamic axial rating Ca (N)9
Fatigue limit load Cur (N)85000
Factor e0.39
Factor Y1.56
Factor Y00.86
Limiting speed nG (rpm)2,200
Reference speed nB (rpm)1,510
Effective load centre a (mm)62

Weight

Weight (kg)20.8

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)5
Shaft shoulder da (mm)224
Shaft shoulder db (mm)207
Housing shoulder Da (mm)322
Housing shoulder Db (mm)318
Housing fillet ra max (mm)5
Fillet rb max (mm)4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 700 rpm
4132,5001022,419
688,3333929,345
866,2501,02424,381
1053,0002,15451,296
1535,3338,323198,178

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 530,000 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
6238NSKBall1903405557,300 lbs22.153
7238BNSKBall1903405563,700 lbs21.319
238NSKCylindrical Roller19034055124,000 lbs22.226
NU238ENSKCylindrical Roller19034055855 kN23
30238NSKTapered Roller19034055130,000 lbs20.103
HR30238NSKTapered Roller19034055880 kN21.4
7238NSKPrecision / Angular Contact19034055345 kN22.4
7238A5NSKPrecision / Angular Contact1903405573,900 lbs22.303
7238CNSKPrecision / Angular Contact1903405577,200 lbs22.104
30238TimkenTapered Roller19034055839 kN22.49

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6238-MFAGBall19034055255 kN22.6
QJ238-N2-MPAFAGBall19034055455 kN23.8
N238-E-M1FAGCylindrical Roller19034055680 kN22.8
NJ238-E-M1FAGCylindrical Roller19034055680 kN23.2
NU238-E-M1FAGCylindrical Roller19034055680 kN22.8
NUP238-E-M1FAGCylindrical Roller19034055680 kN23.5
20238-MBFAGSpherical Roller19034055650 kN22.5
30238-XLFAGTapered Roller19034055800 kN21.4

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
30238-XLFAGTapered Roller19034055800 kN21.4

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30338FAGTapered Roller190400781210 kN46.7
32038-XFAGTapered Roller19029064630 kN14.8
32038-X-XLFAGTapered Roller19029064740 kN14.6
32038-X-XL-DF-A120-150FAGTapered Roller190290None1280 kN30.1
32038-X-XL-DF-A200-250FAGTapered Roller190290None1280 kN30.1
32038-X-XL-DF-A300-350FAGTapered Roller190290None1280 kN30.1
32038-X-XL-DF-A350-400FAGTapered Roller190290None1280 kN30.1
32038-X-XL-DF-A370-420FAGTapered Roller190290None1280 kN30.1

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