SIFT BEARING STORE CATALOG

248/670-B-MBFAGSpherical Roller

248/670-B-MB is a FAG spherical roller bearing, bore 670 mm, O.D. 820 mm, width 150 mm. Dimensions, drawing, interchanges and price.

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Bore d670mm
Outside dia. D820mm
Width B150mm
Dynamic Cr3350kN
Static C0r9700kN
Limiting speed670rpm
Weight175kg
Cr / C0r0.35
Mean dia. dm745mm

Original catalogue drawing - FAG Schaeffler HR 1, page 740

248/670-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. D820 mmBore d670 mmWidth B150 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 diameter82032.2835
BInner-ring / bearing width1505.9055
rChamfer (min)40.1575

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)820
Width B (mm)150
Inner-ring shoulder dia. D1 (mm)775.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)753110
Basic static load rating Cor (lbs)2180647
Basic dynamic load rating Cr (N)3.35e+06
Basic static load rating C0r (N)9.7e+06
Fatigue limit load Cur (N)590000
Factor e0.16
Factor Y04.13
Limiting speed nG (rpm)670
Reference speed nB (rpm)191

Weight

Weight (kg)175.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Shaft shoulder da (mm)684.6
Housing shoulder Da (mm)805.4
Housing fillet ra max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 200 rpm
4837,5001028,466
6558,33339232,708
8418,7501,02485,333
10335,0002,154179,536
15223,3338,323693,622

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,350,000 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.

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
248/1250-B-MBFAGSpherical Roller125015002509000 kN918
248/1320-B-MBFAGSpherical Roller1320160028010300 kN1235
248/1400-B-MBFAGSpherical Roller1400170030012100 kN1470
248/1500-B-MBFAGSpherical Roller1500182031513000 kN1660

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 248/670-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.

Online enquiry formrichard@bearingsfit.com