SIFT BEARING STORE CATALOG

240/850-B-K30-MBFAGSpherical Roller

240/850-B-K30-MB is a FAG spherical roller bearing, bore 850 mm, O.D. 1220 mm, width 365 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cage
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Bore d850mm
Outside dia. D1220mm
Width B365mm
Dynamic Cr12800kN
Static C0r32000kN
Limiting speed390rpm
Weight1415kg
Cr / C0r0.4
Mean dia. dm1035mm

Original catalogue drawing - FAG Schaeffler HR 1, page 744

240/850-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. D1220 mmBore d850 mmWidth B365 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 diameter85033.4646
DOutside diameter122048.0315
BInner-ring / bearing width36514.3701
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)850
Outside dia. D (mm)1220
Width B (mm)365
Inner-ring shoulder dia. D1 (mm)1

Load ratings & speeds

Basic dynamic load rating Cr (lbs)2877554
Basic static load rating Cor (lbs)7193886
Basic dynamic load rating Cr (N)1.28e+07
Basic static load rating C0r (N)3.2e+07
Fatigue limit load Cur (N)2.06e+06
Factor e0.29
Factor Y02.28
Limiting speed nG (rpm)390
Reference speed nB (rpm)173

Weight

Weight (kg)1415.0

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)7.5
Shaft shoulder da (mm)878
Housing shoulder Da (mm)1192
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
43,200,00010216,932
62,133,33339265,416
81,600,0001,024170,667
101,280,0002,154359,072
15853,3338,3231,387,244

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 12,800,000 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.744 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
240/850CAME4NSKSpherical Roller85012203652,610,000 lbs1344.901

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
240/850-B-MBFAGSpherical Roller850122036512800 kN1438

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
240/1000-B-K30-MBFAGSpherical Roller1000142041216400 kN2073
240/1000-B-MBFAGSpherical Roller1000142041216400 kN2108
240/1060-B-K30-MBFAGSpherical Roller1060150043818800 kN2483
240/1060-B-MBFAGSpherical Roller1060150043818800 kN2524
240/1120-B-K30-MBFAGSpherical Roller1120158046220900 kN2889
240/1120-B-MBFAGSpherical Roller1120158046220900 kN2924
240/500-BEA-XL-K30-MB1FAGSpherical Roller5007202185700 kN289
240/500-BEA-XL-MB1FAGSpherical Roller5007202185700 kN294

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
230/850-B-K-MBFAGSpherical Roller850122027210300 kN1035
230/850-B-MBFAGSpherical Roller850122027210300 kN1078
231/850-B-K-MBFAGSpherical Roller850136040016100 kN2245
231/850-B-MBFAGSpherical Roller850136040016100 kN2396
238/850-K-MBFAGSpherical Roller85010301363500 kN228
238/850-MBFAGSpherical Roller85010301363500 kN236
239/850-K-MBFAGSpherical Roller85011202006300 kN554
239/850-MBFAGSpherical Roller85011202006300 kN579

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