SIFT BEARING STORE CATALOG

239/670-B-K-MBFAGSpherical Roller

239/670-B-K-MB is a FAG spherical roller bearing, bore 670 mm, O.D. 900 mm, width 170 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d670mm
Outside dia. D900mm
Width B170mm
Dynamic Cr4300kN
Static C0r10600kN
Limiting speed710rpm
Weight310kg
Cr / C0r0.41
Mean dia. dm785mm

Original catalogue drawing - FAG Schaeffler HR 1, page 768

239/670-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. D900 mmBore d670 mmWidth B170 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 width1706.6929
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)170
Inner-ring shoulder dia. D1 (mm)831.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)966678
Basic static load rating Cor (lbs)2382975
Basic dynamic load rating Cr (N)4.3e+06
Basic static load rating C0r (N)1.06e+07
Fatigue limit load Cur (N)750000
Factor e0.17
Factor Y03.86
Limiting speed nG (rpm)710
Reference speed nB (rpm)375
Effective load centre a (mm)8

Weight

Weight (kg)310.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)6
Shaft shoulder da (mm)693
Shaft shoulder db (mm)689
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 200 rpm
41,075,0001028,466
6716,66739232,708
8537,5001,02485,333
10430,0002,154179,536
15286,6678,323693,622

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 4,300,000 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.768 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
239/670CAME4NSKSpherical Roller670900170985,000 lbs299.825

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
239/670-B-MBFAGSpherical Roller6709001704300 kN320

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
239/1060-K-MB1FAGSpherical Roller106014002509900 kN1060
239/1060-MB1FAGSpherical Roller106014002509900 kN1081
239/1180-B-K-MBFAGSpherical Roller1180154027211300 kN1340
239/1180-B-MBFAGSpherical Roller1180154027211300 kN1385
239/500-K-MBFAGSpherical Roller5006701282600 kN124
239/500-MBFAGSpherical Roller5006701282600 kN132
239/530-K-MBFAGSpherical Roller5307101362850 kN146
239/530-MBFAGSpherical Roller5307101362850 kN160

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 239/670-B-K-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