SIFT BEARING STORE CATALOG

231/630-B-K-MBFAGSpherical Roller

231/630-B-K-MB is a FAG spherical roller bearing, bore 630 mm, O.D. 1030 mm, width 315 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d630mm
Outside dia. D1030mm
Width B315mm
Dynamic Cr9800kN
Static C0r20700kN
Limiting speed530rpm
Weight1037kg
Cr / C0r0.47
Mean dia. dm830mm

Original catalogue drawing - FAG Schaeffler HR 1, page 740

231/630-B-K-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. D1030 mmBore d630 mmWidth B315 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 diameter63024.8031
DOutside diameter103040.5512
BInner-ring / bearing width31512.4016
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)630
Outside dia. D (mm)1030
Width B (mm)315
Inner-ring shoulder dia. D1 (mm)896.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)2203128
Basic static load rating Cor (lbs)4653545
Basic dynamic load rating Cr (N)9.8e+06
Basic static load rating C0r (N)2.07e+07
Fatigue limit load Cur (N)1.42e+06
Factor e0.31
Factor Y02.16
Limiting speed nG (rpm)530
Reference speed nB (rpm)255

Weight

Weight (kg)1037.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)7.5
Shaft shoulder da (mm)662
Housing shoulder Da (mm)998
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
42,450,00010216,932
61,633,33339265,416
81,225,0001,024170,667
10980,0002,154359,072
15653,3338,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 9,800,000 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.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
231/630CAME4NSKSpherical Roller63010303152,160,000 lbs1041.448
NP689200/NP360973TimkenTapered Roller630103031512200 kN1060.79

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
231/630-B-MBFAGSpherical Roller63010303159800 kN1074

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
231/1000-B-K-MBFAGSpherical Roller1000158046222000 kN3474
231/1000-B-MBFAGSpherical Roller1000158046222000 kN3474
231/500-BEA-XL-K-MB1FAGSpherical Roller5008302648300 kN574
231/500-BEA-XL-MB1FAGSpherical Roller5008302648300 kN593
231/530-BEA-XL-K-MB1FAGSpherical Roller5308702728900 kN634
231/530-BEA-XL-MB1FAGSpherical Roller5308702728900 kN655
231/560-BEA-XL-K-MB1FAGSpherical Roller5609202809700 kN731
231/560-BEA-XL-MB1FAGSpherical Roller5609202809700 kN754

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
230/630-BEA-XL-K-MB1FAGSpherical Roller6309202127400 kN476
230/630-BEA-XL-MB1FAGSpherical Roller6309202127400 kN491
232/630-B-K-MBFAGSpherical Roller630115041214400 kN1910
232/630-B-MBFAGSpherical Roller630115041214400 kN1940
238/630-XL-K-MA1FAGSpherical Roller6307801122650 kN120
238/630-XL-MA1FAGSpherical Roller6307801122650 kN122
239/630-B-K-MBFAGSpherical Roller6308501654100 kN283
239/630-B-MBFAGSpherical Roller6308501654100 kN292

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