SIFT BEARING STORE CATALOG

31324-XFAGTapered Roller

31324-X is a FAG tapered roller bearing, bore 120 mm, O.D. 260 mm, width 62 mm, dynamic rating 540 kN. Dimensions, drawing, interchanges and price.

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Bore d120mm
Outside dia. D260mm
Width B62mm
Dynamic Cr540kN
Static C0r700kN
Limiting speed2,600rpm
Weight15.4kg
Cr / C0r0.77
Mean dia. dm190mm

Original catalogue drawing - FAG Schaeffler HR 1, page 486

31324-X 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. D260 mmBore d120 mmWidth B62 mmCup width C42 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 diameter1204.7244
DOutside diameter26010.2362
BInner-ring / bearing width622.4409
TOverall assembly width682.6772
CCup / outer-ring width421.6535

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)120
Outside dia. D (mm)260
Width B (mm)62
Overall width T (mm)68
Cup width C (mm)42
Inner-ring OD d1 (mm)192

Load ratings & speeds

Basic dynamic load rating Cr (lbs)121397
Basic static load rating Cor (lbs)157366
Basic dynamic load rating Cr (N)540000
Basic static load rating C0r (N)700000
Basic dynamic axial rating Ca (N)9
Fatigue limit load Cur (N)82000
Factor e0.83
Factor Y0.73
Factor Y00.4
Limiting speed nG (rpm)2,600
Reference speed nB (rpm)2,320
Effective load centre a (mm)82

Weight

Weight (kg)15.4

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)4
Shaft shoulder da (mm)145
Shaft shoulder db (mm)134
Housing shoulder Da (mm)246
Housing shoulder Db (mm)244
Housing fillet ra max (mm)4
Fillet rb max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 800 rpm
4135,0001022,117
690,0003928,177
867,5001,02421,333
1054,0002,15444,884
1536,0008,323173,406

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 540,000 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.486 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
HR31324NSKTapered Roller12026062685 kN15.6
HR31324JNSKTapered Roller1202606295,500 lbs15.644
31324XTimkenTapered Roller12026062606 kN15.37

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
31324-X-XLFAGTapered Roller12026062640 kN15.8

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31324-X-XLFAGTapered Roller12026062640 kN15.8

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30224-AFAGTapered Roller12021540335 kN6.25
30224-XLFAGTapered Roller12021540395 kN6.26
30324-AFAGTapered Roller12026055570 kN14.3
32024-XFAGTapered Roller12018038250 kN3.29
32024-X-XLFAGTapered Roller12018038295 kN3.29
32024-X-XL-DF-A230-280FAGTapered Roller120180None510 kN6.76
32224-AFAGTapered Roller12021558490 kN9.28
32224-XLFAGTapered Roller12021558570 kN9.31

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