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TIMKEN / Ts - tapered single

TIMKEN NP550055 / 2520A

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

Technical data available
Bore diameterd
33.338 mm
Outside diameterD
66.421 mm
WidthB
25.401 mm
Dynamic load ratingC
99.2 kN
Static load ratingC0
94.4 kN
Mass≈m
0.4 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
Series2500
Variant / constructionTS - Tapered Single
Bore diameterd33.338 mm
Outside diameterD66.421 mm
WidthB25.401 mm
Basic dynamic load ratingC99.2 kN
Basic static load ratingC094.4 kN
Mass≈m0.4 kg
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor2.14
Y1 Factor2.19
Y2 Factor-1.00
Y0 Factor1.21
E Factor0.27
Cg Factor0.0656
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number190069221100058654
World Assembly Part NumberNP550055 / 2520A
Inner Ring Part NumberNP550055
Outer Ring Part Number2520A
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 Width26.857 mm
Radial Rating25,700 N
Axial Rating12,000 N
Dynamic Rating C199,200 N
Dynamic Rating C9025,700 N
Dynamic Axial Rating Ca9012,000 N
Dynamic Axial Rating Ca146,500 N
Static Radial Rating C094,400 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A75,200 N

Technical documents & data sheet

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Record identity
TIMKEN NP550055 / 2520A
Document matching
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