SIFT BEARING STORE CATALOG

30308TimkenTapered Roller

30308 is a Timken tapered roller bearing, bore 40 mm, O.D. 90 mm, width 23 mm, dynamic rating 98.7 kN. Dimensions, drawing, interchanges and price.

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Bore d40mm
Outside dia. D90mm
Width B23mm
Dynamic Cr98.7kN
Static C0r102kN
Weight0.73kg
Cr / C0r0.97
Mean dia. dm65mm

Original catalogue drawing - Timken TRB Catalog, page 400

30308 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. D90 mmBore d40 mmWidth B23 mmCup width C20 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 diameter401.5748
DOutside diameter903.5433
BInner-ring / bearing width230.9055
TOverall assembly width25.250.9941
CCup / outer-ring width200.7874
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)40.000
Bore d (in)1.5748
Outside dia. D (mm)90.000
Outside dia. D (in)3.5433
Width B (mm)23.000
Overall width T (mm)25.250
Overall width T (in)0.9941
Cup width C (mm)20.000

Load ratings & speeds

Basic dynamic load rating Cr (lbs)22200
Basic static load rating Cor (lbs)23000
Basic dynamic load rating Cr (N)98700
Basic static load rating C0r (N)102000
Dynamic rating C1 (N, ISO)98700
Dynamic rating C1 (lbf, ISO)22200
Radial rating C90 (N)25600
Radial rating C90 (lbf)5760
Thrust rating Ca90 (N)15100
Thrust rating Ca90 (lbf)3400
Static rating C0 (N)102000
Static rating C0 (lbf)23000
Factor e0.35
Factor Y1.74
Factor K1.69
Geometry factor G130.1
Geometry factor G211.6
Geometry factor Cg0.0762
Effective load centre a (mm)-5.8

Weight

Weight (kg)0.73

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)2.0
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)46.5
Shaft shoulder db (mm)50.0
Housing shoulder Da (mm)84.0
Housing shoulder Db (mm)80.0
Cage projection Aa (mm)1.8
Cage projection Ab (mm)2.8

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
424,6751023,386
616,45039213,083
812,3381,02434,133
109,8702,15471,814
156,5808,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 98,700 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.400 (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
1308-K-TVH-C3FAGBall40902330 kN0.698
1308-TVHFAGBall40902330 kN0.708
6308FAGBall40902342.5 kN0.64
6308-2RSRFAGBall40902342.5 kN0.654
6308-2ZFAGBall40902342.5 kN0.654
6308-CFAGBall40902347 kN0.6
6308-C-2BRSFAGBall40902347 kN0.654
6308-C-2HRSFAGBall40902347 kN0.622
6308-C-2ZFAGBall40902347 kN0.617
QJ308-TVPFAGBall40902386.5 kN0.695

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
31308TimkenTapered Roller40902385.3 kN0.73

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
11157X/11300TimkenTapered Roller4076.217.38-0.35
28158/28300TimkenTapered Roller4076.220.94-0.39
28158/28300XTimkenTapered Roller4076.220.9475.2 kN0.38
28158/28315TimkenTapered Roller408020.9475.2 kN0.44
28158/28315ATimkenTapered Roller408020.9475.2 kN0.44
28158/28318DTimkenTapered Roller4080.0346.04131 kN0.94
30208TimkenTapered Roller40801870.9 kN0.43
31308TimkenTapered Roller40902385.3 kN0.73

Request a quotation for 30308

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