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TIMKEN / Ts - tapered single

TIMKEN NP407977 / NP525508

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

Technical data available
Bore diameterd
30 mm
Outside diameterD
55 mm
WidthB
17.316 mm
Dynamic load ratingC
46.5 kN
Static load ratingC0
45.3 kN
Mass≈m
0.18 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
Series32006X
Variant / constructionTS - Tapered Single
Bore diameterd30 mm
Outside diameterD55 mm
WidthB17.316 mm
Basic dynamic load ratingC46.5 kN
Basic static load ratingC045.3 kN
Mass≈m0.18 kg
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.36
Y1 Factor1.39
Y2 Factor-1.00
Y0 Factor0.77
E Factor0.43
Cg Factor0.0611
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number100145481100117575
World Assembly Part NumberNP407977 / NP525508
Inner Ring Part NumberNP407977
Outer Ring Part NumberNP525508
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 Width18.500 mm
Radial Rating12,000 N
Axial Rating8,870 N
Dynamic Rating C146,500 N
Dynamic Rating C9012,000 N
Dynamic Axial Rating Ca908,870 N
Dynamic Axial Rating Ca134,200 N
Static Radial Rating C045,300 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A56,800 N

Technical documents & data sheet

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Record identity
TIMKEN NP407977 / NP525508
Document matching
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