99,016 bearing records · search, filter and compare

KOYO / Single-row / inch series

KOYO 17580R/20

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

Technical data available
Bore diameterd
15.875 mm
Outside diameterD
42.862 mm
WidthB
16.67 mm
Dynamic load ratingC
38.2 kN
Static load ratingC0
29.5 kN
Limiting speednG
10000 r/min

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 specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / Inch series
Bore diameterd15.875 mm
Outside diameterD42.862 mm
WidthB16.67 mm
Basic dynamic load ratingC38.2 kN
Basic static load ratingC029.5 kN
Fatigue load limitPu4.15 kN
Limiting speednG10000 r/min
Mass≈m0.126 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Inch series
Official Classification 1Tapered roller bearings / Single-row / Inch series
Technical Data23 parameters
Technical Data
ParameterSymbolValue
d15.875 mm
D42.862 mm
T16.670 mm
B16.670 mm
C13.495 mm
R(Min.)1.6 mm
R1(Min.)1.6 mm
Basic Load Ratings : Cr38.2 kN
Basic Load Ratings : C0R29.5 kN
Fatigue Load Limit : Cu4.15 kN
Limiting Speeds(Grease Lub.)10000 min-1
Limiting Speeds(Oil Lub.)14000 min-1
Load Center Spread : A10.9 mm
Constant :E0.33
Axial Load Factors : Y11.81
Axial Load Factors : Y01.00
Da23.0 mm
Db21.0 mm
Da36.5 mm
Db39.0 mm
Ra(Max.)1.6 mm
Rb(Max.)1.6 mm
Mass(Refer.)0.126 kg

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
KOYO 17580R/20
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