99,016 bearing records · search, filter and compare

TIMKEN / Tsf - tapered single flanged

TIMKEN NP390444-99401

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

Technical data available
Bore diameterd
31.75 mm
Outside diameterD
61.986 mm
WidthB
7.841 mm
Dynamic load ratingC
59.9 kN
Static load ratingC0
53.9 kN
Mass≈m
0.26 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
Series15000
Variant / constructionTSF - Tapered Single Flanged
Bore diameterd31.75 mm
Outside diameterD61.986 mm
WidthB7.841 mm
Basic dynamic load ratingC59.9 kN
Basic static load ratingC053.9 kN
Mass≈m0.26 kg
Precision classABMA Class 2
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.67
Y1 Factor1.71
Y2 Factor0.00
Y0 Factor0.94
E Factor0.35
Cg Factor0.0606
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100145834
World Assembly Part NumberNP390444_NP750997
Inner Ring Part NumberNP390444
Outer Ring Part NumberNP750997
Drawing NumberA-51100
Upc0053893660950
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.587
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTSF - Tapered Single Flanged
ConstructionSingle Row Tapered Roller Bearing Assembly | Imperial Series | 1.2500 in Bore | 2.4404 in OD | 0.7325 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width21.550 mm
Radial Rating15,500 N
Axial Rating9,310 N
Dynamic Rating C159,900 N
Dynamic Rating C9015,500 N
Dynamic Axial Rating Ca909,310 N
Dynamic Axial Rating Ca135,900 N
Static Radial Rating C053,900 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A55,100 N

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
TIMKEN NP390444-99401
Document matching
Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

Look up another model or check drawing requirements →

Search the consolidated catalogue

Find, filter and compare bearing model data in one place.

Open model search