SIFT BEARING STORE CATALOG

241/670-B-K30-MBFAGSpherical Roller

241/670-B-K30-MB is a FAG spherical roller bearing, bore 670 mm, O.D. 1090 mm, width 412 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d670mm
Outside dia. D1090mm
Width B412mm
Dynamic Cr14000kN
Static C0r31500kN
Limiting speed420rpm
Weight1539kg
Cr / C0r0.44
Mean dia. dm880mm

Original catalogue drawing - FAG Schaeffler HR 1, page 740

241/670-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. D1090 mmBore d670 mmWidth B412 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 diameter109042.9134
BInner-ring / bearing width41216.2205
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)670
Outside dia. D (mm)1090
Width B (mm)412
Inner-ring shoulder dia. D1 (mm)929.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)3147325
Basic static load rating Cor (lbs)7081482
Basic dynamic load rating Cr (N)1.4e+07
Basic static load rating C0r (N)3.15e+07
Fatigue limit load Cur (N)2.11e+06
Factor e0.37
Factor Y01.79
Limiting speed nG (rpm)420
Reference speed nB (rpm)127

Weight

Weight (kg)1539.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)7.5
Shaft shoulder da (mm)702
Housing shoulder Da (mm)1058
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
43,500,00010216,932
62,333,33339265,416
81,750,0001,024170,667
101,400,0002,154359,072
15933,3338,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 14,000,000 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.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
241/670CAME4NSKSpherical Roller67010904122,790,000 lbs1440.156

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
241/670-B-MBFAGSpherical Roller670109041214000 kN1544

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
241/1000-B-K30-MBFAGSpherical Roller1000158058027500 kN4379
241/1000-B-MBFAGSpherical Roller1000158058027500 kN4429
241/500-BEA-XL-K30-MB1FAGSpherical Roller50083032510000 kN692
241/500-BEA-XL-MB1FAGSpherical Roller50083032510000 kN703
241/530-BEA-XL-K30-MB1FAGSpherical Roller530870335None10700 kN778
241/530-BEA-XL-MB1FAGSpherical Roller53087033510700 kN791
241/560-BEA-XL-K30-MB1FAGSpherical Roller560920355None12000 kN914
241/560-BEA-XL-MB1FAGSpherical Roller56092035512000 kN929

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

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