SIFT BEARING STORE CATALOG

248/1250-B-MBFAGSpherical Roller

248/1250-B-MB is a FAG spherical roller bearing, bore 1250 mm, O.D. 1500 mm, width 250 mm. Dimensions, drawing, interchanges and price.

Brass cage
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Bore d1250mm
Outside dia. D1500mm
Width B250mm
Dynamic Cr9000kN
Static C0r30500kN
Limiting speed320rpm
Weight918kg
Cr / C0r0.3
Mean dia. dm1375mm

Original catalogue drawing - FAG Schaeffler HR 1, page 750

248/1250-B-MB FAG Spherical 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. D1500 mmBore d1250 mmWidth B250 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 diameter125049.2126
DOutside diameter150059.0551
BInner-ring / bearing width2509.8425
rChamfer (min)60.2362

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)1250
Outside dia. D (mm)1500
Width B (mm)250
Inner-ring shoulder dia. D1 (mm)1

Load ratings & speeds

Basic dynamic load rating Cr (lbs)2023280
Basic static load rating Cor (lbs)6856673
Basic dynamic load rating Cr (N)9e+06
Basic static load rating C0r (N)3.05e+07
Fatigue limit load Cur (N)1.22e+06
Factor e0.14
Factor Y04.57
Limiting speed nG (rpm)320

Weight

Weight (kg)918.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)6
Shaft shoulder da (mm)1273
Housing shoulder Da (mm)1477
Housing fillet ra max (mm)5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 100 rpm
42,250,00010216,932
61,500,00039265,416
81,125,0001,024170,667
10900,0002,154359,072
15600,0008,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 9,000,000 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.750 (dimensions)

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
248/1000-B-MBFAGSpherical Roller100012202186700 kN546
248/1060-B-MBFAGSpherical Roller106012802187000 kN599
248/1120-B-MBFAGSpherical Roller112013602438000 kN791
248/1180-B-MBFAGSpherical Roller118014202438400 kN790
248/1320-B-MBFAGSpherical Roller1320160028010300 kN1235
248/1400-B-MBFAGSpherical Roller1400170030012100 kN1470
248/1500-B-MBFAGSpherical Roller1500182031513000 kN1660
248/1600-B-MBFAGSpherical Roller1600195034516000 kN2222

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
230/1250-B-K-MBFAGSpherical Roller1250175037518100 kN2923
230/1250-B-MBFAGSpherical Roller1250175037518100 kN2933
249/1250-B-K30-MBFAGSpherical Roller1250163037516000 kN2096
249/1250-B-MBFAGSpherical Roller1250163037516000 kN2132

Request a quotation for 248/1250-B-MB

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