SIFT BEARING STORE CATALOG

NJ248-E-M1FAGCylindrical Roller

NJ248-E-M1 is a FAG cylindrical roller bearing, bore 240 mm, O.D. 440 mm, width 72 mm. Dimensions, drawing, interchanges and price.

Brass cage
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Bore d240mm
Outside dia. D440mm
Width B72mm
Dynamic Cr1140kN
Static C0r1600kN
Limiting speed2,600rpm
Weight52.5kg
Cr / C0r0.71
Mean dia. dm340mm

Original catalogue drawing - FAG Schaeffler HR 1, page 400

NJ248-E-M1 FAG Cylindrical 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. D440 mmBore d240 mmWidth B72 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 diameter44017.3228
BInner-ring / bearing width722.8346
rChamfer (min)40.1575
ERoller-set outside dia.39315.4724
FRoller-set bore dia.29311.5354

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)440
Width B (mm)72
Inner-ring OD d1 (mm)312
Inner-ring shoulder dia. D1 (mm)376.6
Dimension E (mm)393
Dimension F (mm)293

Load ratings & speeds

Basic dynamic load rating Cr (lbs)256282
Basic static load rating Cor (lbs)359694
Basic dynamic load rating Cr (N)1.14e+06
Basic static load rating C0r (N)1.6e+06
Fatigue limit load Cur (N)163000
Limiting speed nG (rpm)2,600
Reference speed nB (rpm)1,240

Weight

Weight (kg)52.5

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Chamfer r1 min (mm)4
Shaft shoulder da (mm)257
Shaft shoulder dc (mm)315
Housing shoulder Da (mm)423
Housing fillet ra max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 800 rpm
4285,0001022,117
6190,0003928,177
8142,5001,02421,333
10114,0002,15444,884
1576,0008,323173,406

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,140,000 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.400 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6248NSKBall24044072375 kN50.5
248NSKCylindrical Roller24044072210,000 lbs50.349
30248NSKTapered Roller24044072223,000 lbs45.21

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6248-MFAGBall24044072360 kN51.3
QJ248-N2-MPAFAGBall24044072680 kN53.1
N248-E-M1FAGCylindrical Roller240440721140 kN51.5
N248-E-TB-M1FAGCylindrical Roller240440721160 kN51.5
NJ248-E-TB-M1FAGCylindrical Roller240440721140 kN52.5
NU248-E-M1FAGCylindrical Roller240440721140 kN51.8
NU248-E-TB-M1FAGCylindrical Roller240440721140 kN51.8
30248-XLFAGTapered Roller240440721030 kN47.5

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
NJ248-E-TB-M1FAGCylindrical Roller240440721140 kN52.5

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
LSL192348FAGCylindrical Roller2405001552750 kN138.6
LSL192348-TBFAGCylindrical Roller2405001552750 kN138.6
N248-E-M1FAGCylindrical Roller240440721140 kN51.5
N248-E-TB-M1FAGCylindrical Roller240440721160 kN51.5
NJ348-E-M1FAGCylindrical Roller240500951730 kN97
NJ348-E-TB-M1FAGCylindrical Roller240500951720 kN97
NN3048-AS-K-M-SPFAGCylindrical Roller24036092850 kN31.6
NU1048-M1FAGCylindrical Roller24036056540 kN19.9

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