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TIMKEN / Ts - tapered single

TIMKEN 3979 / 3925

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

Technical data available
Bore diameterd
57.15 mm
Outside diameterD
112.712 mm
WidthB
30.162 mm
Dynamic load ratingC
139 kN
Static load ratingC0
191 kN
Mass≈m
1.39 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 specifications8 parameters
Core specifications
ParameterSymbolValue
Series3900
Variant / constructionTS - Tapered Single
Bore diameterd57.15 mm
Outside diameterD112.712 mm
WidthB30.162 mm
Basic dynamic load ratingC139 kN
Basic static load ratingC0191 kN
Mass≈m1.39 kg
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.45
Y1 Factor1.49
Y2 Factor-1.00
Y0 Factor0.82
E Factor0.40
Cg Factor0.1092
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number100055885100051236
World Assembly Part Number3979 / 3925
Inner Ring Part Number3979
Outer Ring Part Number3925
Official Source SystemTS_PREPAIR
Official Last Run2026-08-23T00:00:00
Product Identity3 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTS - Tapered Single
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width32.048 mm
Radial Rating36,000 N
Axial Rating24,800 N
Dynamic Rating C1139,000 N
Dynamic Rating C9036,000 N
Dynamic Axial Rating Ca9024,800 N
Dynamic Axial Rating Ca195,500 N
Static Radial Rating C0191,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A224,000 N

Technical documents & data sheet

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Record identity
TIMKEN 3979 / 3925
Document matching
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