SIFT BEARING STORE CATALOG

31313-AFAGTapered Roller

31313-A is a FAG tapered roller bearing, bore 65 mm, O.D. 140 mm, width 33 mm, dynamic rating 165 kN. Dimensions, drawing, interchanges and price.

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Bore d65mm
Outside dia. D140mm
Width B33mm
Dynamic Cr165kN
Static C0r191kN
Limiting speed5,000rpm
Weight2.36kg
Cr / C0r0.86
Mean dia. dm102.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 480

31313-A 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. D140 mmBore d65 mmWidth B33 mmCup width C23 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 diameter652.5591
DOutside diameter1405.5118
BInner-ring / bearing width331.2992
TOverall assembly width361.4173
CCup / outer-ring width230.9055

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)65
Outside dia. D (mm)140
Width B (mm)33
Overall width T (mm)36
Cup width C (mm)23
Inner-ring OD d1 (mm)102.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)37093
Basic static load rating Cor (lbs)42939
Basic dynamic load rating Cr (N)165000
Basic static load rating C0r (N)191000
Basic dynamic axial rating Ca (N)5
Fatigue limit load Cur (N)22400
Factor e0.83
Factor Y0.73
Factor Y00.4
Limiting speed nG (rpm)5,000
Reference speed nB (rpm)4,300
Effective load centre a (mm)44

Weight

Weight (kg)2.36

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3
Shaft shoulder da (mm)79
Shaft shoulder db (mm)77
Housing shoulder Da (mm)128
Housing shoulder Db (mm)132
Housing fillet ra max (mm)3
Fillet rb max (mm)2.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,600 rpm
441,2501021,058
627,5003924,089
820,6251,02410,667
1016,5002,15422,442
1511,0008,32386,703

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 165,000 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.480 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1313NSKBall651403313,900 lbs2.522
6313NSKBall651403320,800 lbs2.1
7313BNSKBall651403321,600 lbs2.468
BL313NSKBall651403327,300 lbs2.313
313NSKCylindrical Roller651403330,400 lbs2.223
NU313NSKCylindrical Roller6514033166 kN2.23
NU313ENSKCylindrical Roller6514033222 kN2.56
21313EAE4NSKSpherical Roller6514033264 kN2.45
3400NSKTapered Roller6514033213 kN2.43
3600NSKTapered Roller6514033245 kN2.51

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1313-K-TVH-C3FAGBall651403363 kN2.41
1313-TVHFAGBall651403363 kN2.44
6313FAGBall651403393 kN2.14
6313-2RSRFAGBall651403393 kN2.18
6313-2ZFAGBall651403393 kN2.18
6313-CFAGBall6514033101 kN2.07
6313-C-2BRSFAGBall6514033101 kN2.13
6313-C-2HRSFAGBall6514033101 kN2.13

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31313-A-N11CA-A80-120FAGTapered Roller65140None285 kN5.05
31313-XLFAGTapered Roller6514033193 kN2.39

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30213-AFAGTapered Roller6512023119 kN1.27
30213-XLFAGTapered Roller6512023142 kN1.16
30313-AFAGTapered Roller6514033201 kN2.4
32013-XFAGTapered Roller651002381 kN0.62
32013-X-XLFAGTapered Roller651002397 kN0.66
32213-AFAGTapered Roller6512031156 kN1.49
32213-B-XLFAGTapered Roller6512031174 kN1.53
32213-XLFAGTapered Roller6512031185 kN1.57

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