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TIMKEN / Tdo - tapered double outer

TIMKEN 390A-90116

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

Technical data available
Bore diameterd
63.5 mm
Outside diameterD
110 mm
WidthB
52.388 mm
Dynamic load ratingC
172 kN
Static load ratingC0
250 kN
Mass≈m
1.9 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
Series395
Variant / constructionTDO - Tapered Double Outer
Bore diameterd63.5 mm
Outside diameterD110 mm
WidthB52.388 mm
Basic dynamic load ratingC172 kN
Basic static load ratingC0250 kN
Mass≈m1.9 kg
Precision classABMA Class 2
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.45
Y1 Factor1.68
Y2 Factor2.50
Y0 Factor1.64
E Factor0.40
Cg Factor0.0984
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100013814
World Assembly Part Number390A_394D
Inner Ring Part Number390A
Outer Ring Part Number394D
Drawing NumberA-40908
Upc0053893299679
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.163
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTDO - Tapered Double Outer
ConstructionDouble Row Tapered Roller Bearing Assembly | Imperial Series | 2.5000 in Bore | 4.3307 in OD | 2.0625 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 Rating44,600 N
Axial Rating17,600 N
Dynamic Rating C1172,000 N
Dynamic Rating C9044,600 N
Dynamic Axial Rating Ca9017,600 N
Dynamic Axial Rating Ca168,100 N
Static Radial Rating C0250,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A146,000 N

Technical documents & data sheet

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Record identity
TIMKEN 390A-90116
Document matching
Exact designation, assembly scope, revision and units must agree.

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