SIFT BEARING STORE CATALOG

23256-BEA-XL-K-MB1FAGSpherical Roller

23256-BEA-XL-K-MB1 is a FAG spherical roller bearing, bore 280 mm, O.D. 500 mm, width 176 mm. Dimensions, drawing, interchanges and price.

Tapered boreBrass cageX-life
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Bore d280mm
Outside dia. D500mm
Width B176mm
Dynamic Cr3550kN
Static C0r5200kN
Limiting speed1,280rpm
Weight143.7kg
Cr / C0r0.68
Mean dia. dm390mm

Original catalogue drawing - FAG Schaeffler HR 1, page 764

23256-BEA-XL-K-MB1 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. D500 mmBore d280 mmWidth B176 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 diameter28011.0236
DOutside diameter50019.685
BInner-ring / bearing width1766.9291
rChamfer (min)50.1969

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)280
Outside dia. D (mm)500
Width B (mm)176
Inner-ring shoulder dia. D1 (mm)425.4

Load ratings & speeds

Basic dynamic load rating Cr (lbs)798072
Basic static load rating Cor (lbs)1169007
Basic dynamic load rating Cr (N)3.55e+06
Basic static load rating C0r (N)5.2e+06
Fatigue limit load Cur (N)385000
Factor e0.34
Factor Y01.92
Limiting speed nG (rpm)1,280

Weight

Weight (kg)143.7

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)5
Shaft shoulder da (mm)300
Shaft shoulder db (mm)299
Housing shoulder Da (mm)480
Housing fillet ra max (mm)4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
4887,5001024,233
6591,66739216,354
8443,7501,02442,667
10355,0002,15489,768
15236,6678,323346,811

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,550,000 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.764 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
23256CAME4NSKSpherical Roller280500176650,000 lbs144.968

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
23256-BEA-XL-MB1FAGSpherical Roller2805001763550 kN148

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
23256-BEA-XL-MB1FAGSpherical Roller2805001763550 kN148

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
22256-BEA-XL-K-MB1FAGSpherical Roller2805001302750 kN109
22256-BEA-XL-MB1FAGSpherical Roller2805001302750 kN112
22356-BEA-XL-K-MB1FAGSpherical Roller2805801754150 kN223
22356-BEA-XL-MB1FAGSpherical Roller2805801754150 kN228
23056-BE-XLFAGSpherical Roller2804201061780 kN50.9
23056-BE-XL-KFAGSpherical Roller2804201061780 kN49.3
23156-BE-XLFAGSpherical Roller2804601462750 kN96.3
23156-BE-XL-2RSRFAGSpherical Roller2804601462750 kN96.3

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