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TIMKEN / Tdo - tapered double outer

TIMKEN 43125-90055

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

Technical data available
Bore diameterd
31.75 mm
Outside diameterD
80.962 mm
WidthB
55.562 mm
Dynamic load ratingC
160 kN
Static load ratingC0
152 kN
Mass≈m
1.31 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
Series43000
Variant / constructionTDO - Tapered Double Outer
Bore diameterd31.75 mm
Outside diameterD80.962 mm
WidthB55.562 mm
Basic dynamic load ratingC160 kN
Basic static load ratingC0152 kN
Mass≈m1.31 kg
Precision classABMA Class 3
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.87
Y1 Factor1.01
Y2 Factor1.50
Y0 Factor0.99
E Factor0.67
Cg Factor0.0774
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100000217
World Assembly Part Number43125_43319D
Inner Ring Part Number43125
Outer Ring Part Number43319D
Drawing NumberA-31924
Upc0053893288727
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.153
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTDO - Tapered Double Outer
ConstructionDouble Row Tapered Roller Bearing Assembly | Imperial Series | 1.2500 in Bore | 3.1875 in OD | 2.1875 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 3
Number Of Rows2
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating41,500 N
Axial Rating27,300 N
Dynamic Rating C1160,000 N
Dynamic Rating C9041,500 N
Dynamic Axial Rating Ca9027,300 N
Dynamic Axial Rating Ca1105,000 N
Static Radial Rating C0152,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A148,000 N

Technical documents & data sheet

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Record identity
TIMKEN 43125-90055
Document matching
Exact designation, assembly scope, revision and units must agree.

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