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TIMKEN / Tdi - tapered double inner

TIMKEN 399D-90270

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

Technical data available
Bore diameterd
61.912 mm
Outside diameterD
110 mm
WidthB
55.55 mm
Dynamic load ratingC
172 kN
Static load ratingC0
250 kN
Mass≈m
2.03 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 / constructionTDI - Tapered Double Inner
Bore diameterd61.912 mm
Outside diameterD110 mm
WidthB55.55 mm
Basic dynamic load ratingC172 kN
Basic static load ratingC0250 kN
Mass≈m2.03 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 Number000000000100033861
World Assembly Part Number399D_394A
Inner Ring Part Number399D
Outer Ring Part Number394A
Drawing NumberA-11635
Upc0053893030289
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.5
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTDI - Tapered Double Inner
ConstructionDouble Row Tapered Roller Bearing Assembly | Imperial Series | 2.4375 in Bore | 4.3307 in OD | 2.1870 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 399D-90270
Document matching
Exact designation, assembly scope, revision and units must agree.

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