SIFT BEARING STORE CATALOG

249/670-B-K30-MBFAGSpherical Roller

249/670-B-K30-MB is a FAG spherical roller bearing, bore 670 mm, O.D. 900 mm, width 230 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d670mm
Outside dia. D900mm
Width B230mm
Dynamic Cr5900kN
Static C0r14900kN
Limiting speed580rpm
Weight429kg
Cr / C0r0.4
Mean dia. dm785mm

Original catalogue drawing - FAG Schaeffler HR 1, page 740

249/670-B-K30-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. D900 mmBore d670 mmWidth B230 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 diameter67026.378
DOutside diameter90035.4331
BInner-ring / bearing width2309.0551
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)670
Outside dia. D (mm)900
Width B (mm)230
Inner-ring shoulder dia. D1 (mm)826.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)1326373
Basic static load rating Cor (lbs)3349653
Basic dynamic load rating Cr (N)5.9e+06
Basic static load rating C0r (N)1.49e+07
Fatigue limit load Cur (N)940000
Factor e0.24
Factor Y02.75
Limiting speed nG (rpm)580
Reference speed nB (rpm)174

Weight

Weight (kg)429.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)6
Shaft shoulder da (mm)693
Housing shoulder Da (mm)877
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
41,475,00010216,932
6983,33339265,416
8737,5001,024170,667
10590,0002,154359,072
15393,3338,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 5,900,000 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.740 (dimensions)

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
249/670-B-MBFAGSpherical Roller6709002305900 kN433

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
230/670-B-K-MBFAGSpherical Roller6709802307200 kN590
230/670-B-MBFAGSpherical Roller6709802307200 kN600
231/670-B-K-MBFAGSpherical Roller670109033611000 kN1241
231/670-B-MBFAGSpherical Roller670109033611000 kN1279
232/670-B-K-MBFAGSpherical Roller670122043816000 kN2246
232/670-B-MBFAGSpherical Roller670122043816000 kN2317
238/670-B-K-MBFAGSpherical Roller6708201122380 kN124
238/670-B-MBFAGSpherical Roller6708201122380 kN129

Request a quotation for 249/670-B-K30-MB

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