SIFT BEARING STORE CATALOG

EE790120/790223DTimkenTapered Roller

EE790120/790223D is a Timken tapered roller bearing, bore 304.8 mm, O.D. 558.8 mm, height 298.45 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d304.8mm
Outside dia. D558.8mm
Overall width T298.45mm
Dynamic Cr5390kN
Weight284.29kg
Mean dia. dm431.8mm

Original catalogue drawing - Timken TRB Catalog, page 588

EE790120/790223D 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

DdTOutside dia. D558.8 mmBore d304.8 mmOverall width T298.45 mmCup width C222.25 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 diameter304.812
DOutside diameter558.822
TOverall assembly width298.4511.75
CCup / outer-ring width222.258.75
rChamfer (min)1.50.0591

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)304.800
Bore d (in)12.0000
Outside dia. D (mm)558.800
Outside dia. D (in)22.0000
Overall width T (mm)298.450
Overall width T (in)11.7500
Cup width C (mm)222.250
Cup width C (in)8.7500

Load ratings & speeds

Basic dynamic load rating Cr (lbs)1210000
Basic dynamic load rating Cr (N)5390000
Dynamic rating C1 (N, ISO)5390000
Dynamic rating C1 (lbf, ISO)1210000
Radial rating C90 (N)802000
Radial rating C90 (lbf)180000
Thrust rating Ca90 (N)542000
Thrust rating Ca90 (lbf)122000
Factor e0.40
Factor Y11.71
Factor Y22.54
Factor K1.48
Geometry factor G12663.9
Geometry factor G2170.3
Geometry factor Cg0.1898

Weight

Weight (kg)284.29

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)1.3
Housing fillet r max (mm)1.5
Shaft shoulder db (mm)335.0
Housing shoulder Da (mm)514.2

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
41,347,5001023,386
6898,33339213,083
8673,7501,02434,133
10539,0002,15471,814
15359,3338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 5,390,000 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.588 (dimensions)
Series typeTDO

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
EE790120/790221TimkenTapered Roller304.8558.8136.533090 kN133.72

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
EE109120/109161DTimkenTapered Roller304.8412.75158.751080 kN51.53
EE109120/109163DTimkenTapered Roller304.8412.75123.831080 kN39.79
EE129120X/129172TimkenTapered Roller304.8438.0576.99896 kN33.07
EE129120X/129173CDTimkenTapered Roller304.8438.05165.11560 kN70.21
EE291200D/291749TimkenTapered Roller304.8444.5107.951540 kN55.22
EE291200D/291750TimkenTapered Roller304.8444.5107.951540 kN52.03
EE291201/291749TimkenTapered Roller304.8444.561.91887 kN27.96
EE291201/291750TimkenTapered Roller304.8444.561.91887 kN28.01

Request a quotation for EE790120/790223D

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