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TIMKEN / Tdo - tapered double outer

TIMKEN 3490-90020

Tapered roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
38.1 mm
Outside diameterD
82.55 mm
WidthB
66.678 mm
Dynamic load ratingC
182 kN
Static load ratingC0
239 kN
Mass≈m
1.66 kg

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications11 parameters
Core specifications
ParameterSymbolValue
Series3400
Variant / constructionTDO - Tapered Double Outer
Bore diameterd38.1 mm
Outside diameterD82.55 mm
WidthB66.678 mm
Basic dynamic load ratingC182 kN
Basic static load ratingC0239 kN
Mass≈m1.66 kg
Precision classABMA Class 2
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.60
Y1 Factor1.85
Y2 Factor2.75
Y0 Factor1.81
E Factor0.37
Cg Factor0.0781
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100000421
World Assembly Part Number3490_3423D
Inner Ring Part Number3490
Outer Ring Part Number3423D
Drawing NumberA-24059
Upc0053893127545
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.08
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTDO - Tapered Double Outer
ConstructionDouble Row Tapered Roller Bearing Assembly | Imperial Series | 1.5000 in Bore | 3.2500 in OD | 2.6251 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2
Number Of Rows2
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating47,200 N
Axial Rating17,000 N
Dynamic Rating C1182,000 N
Dynamic Rating C9047,200 N
Dynamic Axial Rating Ca9017,000 N
Dynamic Axial Rating Ca165,500 N
Static Radial Rating C0239,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A127,000 N

Technical documents & data sheet

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Record identity
TIMKEN 3490-90020
Document matching
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