SIFT BEARING STORE CATALOG

249/950-B-MBFAGSpherical Roller

249/950-B-MB is a FAG spherical roller bearing, bore 950 mm, O.D. 1250 mm, width 300 mm. Dimensions, drawing, interchanges and price.

Brass cage
Request a quoteEmail usSearch the catalog
Bore d950mm
Outside dia. D1250mm
Width B300mm
Dynamic Cr10300kN
Static C0r28500kN
Limiting speed385rpm
Weight1031kg
Cr / C0r0.36
Mean dia. dm1100mm

Original catalogue drawing - FAG Schaeffler HR 1, page 746

249/950-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. D1250 mmBore d950 mmWidth B300 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 diameter95037.4016
DOutside diameter125049.2126
BInner-ring / bearing width30011.811
rChamfer (min)7.50.2953

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)950
Outside dia. D (mm)1250
Width B (mm)300
Inner-ring shoulder dia. D1 (mm)1155

Load ratings & speeds

Basic dynamic load rating Cr (lbs)2315532
Basic static load rating Cor (lbs)6407055
Basic dynamic load rating Cr (N)1.03e+07
Basic static load rating C0r (N)2.85e+07
Fatigue limit load Cur (N)1.7e+06
Factor e0.22
Factor Y02.94
Limiting speed nG (rpm)385
Reference speed nB (rpm)101

Weight

Weight (kg)1031.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)7.5
Shaft shoulder da (mm)978
Housing shoulder Da (mm)1222
Housing fillet ra max (mm)6

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 100 rpm
42,575,00010216,932
61,716,66739265,416
81,287,5001,024170,667
101,030,0002,154359,072
15686,6678,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 10,300,000 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.746 (dimensions)

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
249/950-B-K30-MBFAGSpherical Roller950125030010300 kN1013

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
249/1000-B-K30-MBFAGSpherical Roller1000132031511400 kN1192
249/1000-B-MBFAGSpherical Roller1000132031511400 kN1212
249/1060-B-K30-MBFAGSpherical Roller1060140033512900 kN1411
249/1060-B-MBFAGSpherical Roller1060140033512900 kN1436
249/1120-B-K30-MBFAGSpherical Roller1120146033512800 kN1518
249/1120-B-MBFAGSpherical Roller1120146033512800 kN1545
249/1180-B-K30-MBFAGSpherical Roller1180154035514700 kN1751
249/1180-B-MBFAGSpherical Roller1180154035514700 kN1788

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
230/950-B-K-MBFAGSpherical Roller950136030012300 kN1421
230/950-B-MBFAGSpherical Roller950136030012300 kN1493
239/950-B-K-MBFAGSpherical Roller95012502247500 kN747
239/950-B-MBFAGSpherical Roller95012502247500 kN769
240/950-B-K30-MBFAGSpherical Roller950136041216200 kN1973
240/950-B-MBFAGSpherical Roller950136041216200 kN1993
241/950-B-K30-MBFAGSpherical Roller950150054523700 kN3777
241/950-B-MBFAGSpherical Roller950150054523700 kN3819

Request a quotation for 249/950-B-MB

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.