SIFT BEARING STORE CATALOG

31330-X-XLFAGTapered Roller

31330-X-XL is a FAG tapered roller bearing, bore 150 mm, O.D. 320 mm, width 75 mm, dynamic rating 930 kN. Dimensions, drawing, interchanges and price.

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Bore d150mm
Outside dia. D320mm
Width B75mm
Dynamic Cr930kN
Static C0r1040kN
Limiting speed2,300rpm
Weight27.8kg
Cr / C0r0.89
Mean dia. dm235mm

Original catalogue drawing - FAG Schaeffler HR 1, page 606

31330-X-XL 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. D320 mmBore d150 mmWidth B75 mmCup width C50 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 diameter1505.9055
DOutside diameter32012.5984
BInner-ring / bearing width752.9528
TOverall assembly width823.2283
CCup / outer-ring width501.9685

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)150
Outside dia. D (mm)320
Width B (mm)75
Overall width T (mm)82
Cup width C (mm)50
Inner-ring OD d1 (mm)235.5

Load ratings & speeds

Basic dynamic load rating Cr (lbs)209072
Basic static load rating Cor (lbs)233801
Basic dynamic load rating Cr (N)930000
Basic static load rating C0r (N)1.04e+06
Basic dynamic axial rating Ca (N)9
Fatigue limit load Cur (N)128000
Factor e0.83
Factor Y0.73
Factor Y00.4
Limiting speed nG (rpm)2,300
Reference speed nB (rpm)1,540
Effective load centre a (mm)100

Weight

Weight (kg)27.8

Mounting dimensions (fillets / shoulders)

Chamfer r2 min (mm)5
Shaft shoulder da (mm)181
Shaft shoulder db (mm)168
Housing shoulder Da (mm)251
Housing shoulder Db (mm)300
Housing fillet ra max (mm)5
Fillet rb max (mm)4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 700 rpm
4232,5001022,419
6155,0003929,345
8116,2501,02424,381
1093,0002,15451,296
1562,0008,323198,178

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 930,000 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.606 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
HR31330NSKTapered Roller15032075975 kN28.5
31330XTimkenTapered Roller15032075862 kN28.15

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
31330-XFAGTapered Roller15032075790 kN28

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31330-XFAGTapered Roller15032075790 kN28

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30230-AFAGTapered Roller15027045475 kN11.1
30230-XLFAGTapered Roller15027045550 kN10.9
30330-AFAGTapered Roller15032065810 kN25.1
32030-XFAGTapered Roller15022548385 kN6.47
32030-X-XLFAGTapered Roller15022548455 kN6.5
32030-X-XL-DF-A120-170FAGTapered Roller150225None780 kN13.5
32030-X-XL-DF-A280-330FAGTapered Roller150225None780 kN13.5
32230-AFAGTapered Roller15027073740 kN18.5

Request a quotation for 31330-X-XL

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