SIFT BEARING STORE CATALOG

31309TimkenTapered Roller

31309 is a Timken tapered roller bearing, bore 45 mm, O.D. 100 mm, width 25 mm, dynamic rating 106 kN. Dimensions, drawing, interchanges and price.

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Bore d45mm
Outside dia. D100mm
Width B25mm
Dynamic Cr106kN
Static C0r113kN
Weight0.94kg
Cr / C0r0.94
Mean dia. dm72.5mm

Original catalogue drawing - Timken TRB Catalog, page 402

31309 Timken 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. D100 mmBore d45 mmWidth B25 mmCup width C18 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 diameter451.7717
DOutside diameter1003.937
BInner-ring / bearing width250.9843
TOverall assembly width27.251.0728
CCup / outer-ring width180.7087
rChamfer (min)1.50.0591

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)45.000
Bore d (in)1.7717
Outside dia. D (mm)100.000
Outside dia. D (in)3.9370
Width B (mm)25.000
Overall width T (mm)27.250
Overall width T (in)1.0728
Cup width C (mm)18.000

Load ratings & speeds

Basic dynamic load rating Cr (lbs)23800
Basic static load rating Cor (lbs)25400
Basic dynamic load rating Cr (N)106000
Basic static load rating C0r (N)113000
Dynamic rating C1 (N, ISO)106000
Dynamic rating C1 (lbf, ISO)23800
Radial rating C90 (N)27400
Radial rating C90 (lbf)6160
Thrust rating Ca90 (N)38700
Thrust rating Ca90 (lbf)8700
Static rating C0 (N)113000
Static rating C0 (lbf)25400
Factor e0.83
Factor Y0.73
Factor K0.71
Geometry factor G130.4
Geometry factor G212.7
Geometry factor Cg0.1001
Effective load centre a (mm)4.3

Weight

Weight (kg)0.94

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)2.0
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)56.0
Shaft shoulder db (mm)67.0
Housing shoulder Da (mm)95.5
Housing shoulder Db (mm)85.0
Cage projection Aa (mm)5.4
Cage projection Ab (mm)3.8

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
426,5001023,386
617,66739213,083
813,2501,02434,133
1010,6002,15471,814
157,0678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 106,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandTimken
Source catalogueTimken Tapered Roller Bearing Catalog (2016)
Catalogue pagep.402 (dimensions)
Series typeTS

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1309-K-TVH-C3FAGBall451002538.5 kN0.939
1309-TVHFAGBall451002538.5 kN0.953
6309FAGBall451002553 kN0.849
6309-2RSRFAGBall451002553 kN0.867
6309-2ZFAGBall451002553 kN0.869
6309-CFAGBall451002558 kN0.83
6309-C-2BRSFAGBall451002558 kN0.85
6309-C-2HRSFAGBall451002558 kN0.85
6309-C-2ZFAGBall451002558 kN0.84
QJ309-TVPFAGBall4510025102 kN0.934

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
30309TimkenTapered Roller4510025129 kN1.01

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30209TimkenTapered Roller45851980 kN0.49
30309TimkenTapered Roller4510025129 kN1.01
32009XTimkenTapered Roller45752066.4 kN0.34
32209TimkenTapered Roller45852387.5 kN0.58
32309TimkenTapered Roller4510036154 kN1.36
33109TimkenTapered Roller45802695.1 kN0.54
33209TimkenTapered Roller458532125 kN0.79
358/352TimkenTapered Roller4590.1221.6997 kN0.66

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