SIFT BEARING STORE CATALOG

31307-A-N11CA-A40-70FAGTapered Roller

31307-A-N11CA-A40-70 is a FAG tapered roller bearing, bore 35 mm, O.D. 80 mm, dynamic rating 102 kN. Dimensions, drawing, interchanges and price.

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Bore d35mm
Outside dia. D80mm
Dynamic Cr102kN
Static C0r128kN
Weight1.13kg
Cr / C0r0.8
Mean dia. dm57.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 492

31307-A-N11CA-A40-70 FAG Tapered 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. D80 mmBore d35 mmWidth B22.5 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 diameter351.378
DOutside diameter803.1496

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)35
Outside dia. D (mm)80

Load ratings & speeds

Basic dynamic load rating Cr (lbs)22931
Basic static load rating Cor (lbs)28776
Basic dynamic load rating Cr (N)102000
Basic static load rating C0r (N)128000
Basic dynamic axial rating Ca (N)4
Fatigue limit load Cur (N)14900
Factor e0.83
Factor Y00.8

Weight

Weight (kg)1.13

Mounting dimensions (fillets / shoulders)

Shaft shoulder da (mm)44
Housing shoulder Da (mm)71
Fillet rb max (mm)1.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
425,5001023,386
617,00039213,083
812,7501,02434,133
1010,2002,15471,814
156,8008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 102,000 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.492 (dimensions)

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31307-AFAGTapered Roller35802160 kN0.582

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30207-AFAGTapered Roller35721753 kN0.334
30207-XLFAGTapered Roller35721764 kN0.336
30307-AFAGTapered Roller35802175 kN0.573
32007-XFAGTapered Roller35621845.5 kN0.257
32007-X-XLFAGTapered Roller35621854 kN0.225
32207-AFAGTapered Roller35722370 kN0.482
32207-B-XLFAGTapered Roller35722375 kN0.464
32207-XLFAGTapered Roller35722384 kN0.449

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