SIFT BEARING STORE CATALOG

238/670-B-K-MBFAGSpherical Roller

238/670-B-K-MB is a FAG spherical roller bearing, bore 670 mm, O.D. 820 mm, width 112 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d670mm
Outside dia. D820mm
Width B112mm
Dynamic Cr2380kN
Static C0r6900kN
Limiting speed810rpm
Weight124kg
Cr / C0r0.34
Mean dia. dm745mm

Original catalogue drawing - FAG Schaeffler HR 1, page 740

238/670-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. D820 mmBore d670 mmWidth B112 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 width1124.4094
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)112
Inner-ring shoulder dia. D1 (mm)777.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)535045
Basic static load rating Cor (lbs)1551182
Basic dynamic load rating Cr (N)2.38e+06
Basic static load rating C0r (N)6.9e+06
Fatigue limit load Cur (N)445000
Factor e0.12
Factor Y05.59
Limiting speed nG (rpm)810
Reference speed nB (rpm)380

Weight

Weight (kg)124.0

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
4595,0001028,466
6396,66739232,708
8297,5001,02485,333
10238,0002,154179,536
15158,6678,323693,622

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,380,000 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
238/670-B-MBFAGSpherical Roller6708201122380 kN129

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
238/1000-K-MBFAGSpherical Roller100012201654900 kN399
238/1000-MBFAGSpherical Roller100012201654900 kN413
238/1060-B-K-MBFAGSpherical Roller106012801655100 kN421
238/1060-B-MBFAGSpherical Roller106012801655100 kN435
238/1180-B-K-MBFAGSpherical Roller118014201806000 kN556
238/1180-B-MBFAGSpherical Roller118014201806000 kN576
238/600-K-MBFAGSpherical Roller600730981960 kN84
238/600-MBFAGSpherical Roller600730981960 kN87

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
239/670-B-K-MBFAGSpherical Roller6709001704300 kN310
239/670-B-MBFAGSpherical Roller6709001704300 kN320

Request a quotation for 238/670-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