SIFT BEARING STORE CATALOG

NU2248-EX-M1FAGCylindrical Roller

NU2248-EX-M1 is a FAG cylindrical roller bearing, bore 240 mm, O.D. 440 mm, width 120 mm. Dimensions, drawing, interchanges and price.

Brass cage
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Bore d240mm
Outside dia. D440mm
Width B120mm
Dynamic Cr1830kN
Static C0r2800kN
Limiting speed2,400rpm
Weight82.8kg
Cr / C0r0.65
Mean dia. dm340mm

Original catalogue drawing - FAG Schaeffler HR 1, page 378

NU2248-EX-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 B120 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 width1204.7244
rChamfer (min)40.1575
ERoller-set outside dia.39915.7087
FRoller-set bore dia.28711.2992

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)120
Inner-ring shoulder dia. D1 (mm)380.7
Dimension E (mm)399
Dimension F (mm)287

Load ratings & speeds

Basic dynamic load rating Cr (lbs)411400
Basic static load rating Cor (lbs)629465
Basic dynamic load rating Cr (N)1.83e+06
Basic static load rating C0r (N)2.8e+06
Fatigue limit load Cur (N)295000
Limiting speed nG (rpm)2,400
Reference speed nB (rpm)910

Weight

Weight (kg)82.8

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Chamfer r1 min (mm)4
Shaft shoulder da (mm)257
Shaft shoulder db (mm)289.5
Housing shoulder Da (mm)423
Housing fillet ra max (mm)3
Housing fillet ra1 max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 800 rpm
4457,5001022,117
6305,0003928,177
8228,7501,02421,333
10183,0002,15444,884
15122,0008,323173,406

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,830,000 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.378 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
2248NSKCylindrical Roller240440120321,000 lbs84.368
NU2248NSKCylindrical Roller2404401201770 kN84.9
22248CAME4NSKSpherical Roller240440120420,000 lbs79.524
32248NSKTapered Roller240440120366,000 lbs78.05
32248TimkenTapered Roller2404401202230 kN81.12

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
NU2248-EX-TB-M1FAGCylindrical Roller2404401201850 kN82.8
22248-BE-XLFAGSpherical Roller2404401202230 kN83.6
22248-BE-XL-KFAGSpherical Roller2404401202230 kN81.8
32248-AFAGTapered Roller2404401201860 kN80.5
32248-XLFAGTapered Roller2404401202190 kN80.5

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
NU2248-EX-TB-M1FAGCylindrical Roller2404401201850 kN82.8

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
NJ248-E-M1FAGCylindrical Roller240440721140 kN52.5
NJ248-E-TB-M1FAGCylindrical Roller240440721140 kN52.5
NJ348-E-M1FAGCylindrical Roller240500951730 kN97
NJ348-E-TB-M1FAGCylindrical Roller240500951720 kN97

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