SIFT BEARING STORE CATALOG

31315FAGTapered Roller

31315 is a FAG tapered roller bearing, bore 75 mm, O.D. 160 mm, width 37 mm, dynamic rating 204 kN. Dimensions, drawing, interchanges and price.

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Bore d75mm
Outside dia. D160mm
Width B37mm
Dynamic Cr204kN
Static C0r238kN
Limiting speed4,500rpm
Weight3.79kg
Cr / C0r0.86
Mean dia. dm117.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 482

31315 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. D160 mmBore d75 mmWidth B37 mmCup width C26 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 diameter752.9528
DOutside diameter1606.2992
BInner-ring / bearing width371.4567
TOverall assembly width401.5748
CCup / outer-ring width261.0236

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)75
Outside dia. D (mm)160
Width B (mm)37
Overall width T (mm)40
Cup width C (mm)26
Inner-ring OD d1 (mm)115.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)45861
Basic static load rating Cor (lbs)53505
Basic dynamic load rating Cr (N)204000
Basic static load rating C0r (N)238000
Basic dynamic axial rating Ca (N)6
Fatigue limit load Cur (N)27500
Factor e0.83
Factor Y0.73
Factor Y00.4
Limiting speed nG (rpm)4,500
Reference speed nB (rpm)3,850
Effective load centre a (mm)50

Weight

Weight (kg)3.79

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)3
Shaft shoulder da (mm)91
Shaft shoulder db (mm)87
Housing shoulder Da (mm)148
Housing shoulder Db (mm)151
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 1,500 rpm
451,0001021,129
634,0003924,361
825,5001,02411,378
1020,4002,15423,938
1513,6008,32392,483

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 204,000 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.482 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1315NSKBall751603718,000 lbs3.552
6315NSKBall751603725,500 lbs2.998
7315BNSKBall751603726,500 lbs3.597
BL315NSKBall751603733,400 lbs3.375
315NSKCylindrical Roller751603740,300 lbs3.221
NU315NSKCylindrical Roller7516037220 kN3.26
NU315ENSKCylindrical Roller7516037295 kN3.73
21315EAE4NSKSpherical Roller7516037310 kN3.64
3000NSKTapered Roller7516037259 kN3.47
HR30315JNSKTapered Roller751603756,900 lbs3.629

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1315-K-M-C3FAGBall751603780 kN3.81
1315-MFAGBall751603780 kN3.86
6315FAGBall7516037123 kN3.18
6315-2RSRFAGBall7516037123 kN3.18
6315-2ZFAGBall7516037123 kN3.23
QJ315-N2-MPAFAGBall7516037212 kN3.95
QJ315-XL-N2-MPAFAGBall7516037229 kN3.95
N315-E-TVP2FAGCylindrical Roller7516037285 kN3.34

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31315-N11CA-A100-140FAGTapered Roller75160None350 kN7.2
31315-XLFAGTapered Roller7516037240 kN3.46

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30215-AFAGTapered Roller7513025137 kN1.55
30215-XLFAGTapered Roller7513025160 kN1.4
30315-AFAGTapered Roller7516037255 kN3.64
32015-XFAGTapered Roller7511525104 kN0.922
32015-X-XLFAGTapered Roller7511525124 kN0.92
32215-AFAGTapered Roller7513031171 kN1.93
32215-XLFAGTapered Roller7513031201 kN1.76
32315-AFAGTapered Roller7516055360 kN5.37

Request a quotation for 31315

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