SIFT BEARING STORE CATALOG

30348FAGTapered Roller

30348 is a FAG tapered roller bearing, bore 240 mm, O.D. 500 mm, width 95 mm, dynamic rating 1780 kN. Dimensions, drawing, interchanges and price.

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Bore d240mm
Outside dia. D500mm
Width B95mm
Dynamic Cr1780kN
Static C0r2410kN
Limiting speed1,430rpm
Weight88.6kg
Cr / C0r0.74
Mean dia. dm370mm

Original catalogue drawing - FAG Schaeffler HR 1, page 610

30348 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. D500 mmBore d240 mmWidth B95 mmCup width C80 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 diameter2409.4488
DOutside diameter50019.685
BInner-ring / bearing width953.7402
TOverall assembly width1054.1339
CCup / outer-ring width803.1496
rChamfer (min)87034.252

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)240
Outside dia. D (mm)500
Width B (mm)95
Overall width T (mm)105
Cup width C (mm)80
Inner-ring OD d1 (mm)347.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)400160
Basic static load rating Cor (lbs)541790
Basic dynamic load rating Cr (N)1.78e+06
Basic static load rating C0r (N)2.41e+06
Basic dynamic axial rating Ca (N)12
Fatigue limit load Cur (N)233000
Factor e0.35
Factor Y1.74
Factor Y00.96
Limiting speed nG (rpm)1,430
Effective load centre a (mm)90

Weight

Weight (kg)88.6

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)870
Chamfer r2 min (mm)6
Shaft shoulder da (mm)296
Shaft shoulder db (mm)260
Housing shoulder Da (mm)425
Housing shoulder Db (mm)454
Housing fillet ra max (mm)6
Fillet rb max (mm)5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
4445,0001024,233
6296,66739216,354
8222,5001,02442,667
10178,0002,15489,768
15118,6678,323346,811

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,780,000 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.610 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6348NSKBall24050095515 kN94.4
348NSKCylindrical Roller24050095306,000 lbs93.894
NU348NSKCylindrical Roller240500951680 kN94.6
30348NSKTapered Roller24050095373,000 lbs92.614

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6348-MFAGBall24050095465 kN96.4
QJ348-N2-MPAFAGBall240500951020 kN98.2
NJ348-E-M1FAGCylindrical Roller240500951730 kN97
NJ348-E-TB-M1FAGCylindrical Roller240500951720 kN97
NU348-E-M1FAGCylindrical Roller240500951730 kN95.7
NU348-E-TB-M1FAGCylindrical Roller240500951720 kN95.7

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30248-XLFAGTapered Roller240440721030 kN47.5
32048-XFAGTapered Roller24036076900 kN28.2
32048-X-XLFAGTapered Roller240360761060 kN25.8
32048-X-XL-DF-A300-350FAGTapered Roller240360None1820 kN53.5
32048-X-XL-DF-A400-450FAGTapered Roller240360None1820 kN53.5
32048-X-XL-DF-A450-500FAGTapered Roller240360None1820 kN53.5
32048-X-XL-DF-A700-750FAGTapered Roller240360None1820 kN53.5
32248-AFAGTapered Roller2404401201860 kN80.5

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