99,016 bearing records · search, filter and compare

KOYO / Single-row / inch series

KOYO 47890R/20

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

Technical data available
Bore diameterd
92.075 mm
Outside diameterD
146.05 mm
WidthB
34.925 mm
Dynamic load ratingC
223 kN
Static load ratingC0
293 kN
Limiting speednG
2500 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 diameterd92.075 mm
Outside diameterD146.05 mm
WidthB34.925 mm
Basic dynamic load ratingC223 kN
Basic static load ratingC0293 kN
Fatigue load limitPu43.2 kN
Limiting speednG2500 r/min
Mass≈m2.117 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
d92.075 mm
D146.050 mm
T33.338 mm
B34.925 mm
C26.195 mm
R(Min.)3.6 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr223 kN
Basic Load Ratings : C0R293 kN
Fatigue Load Limit : Cu43.2 kN
Limiting Speeds(Grease Lub.)2500 min-1
Limiting Speeds(Oil Lub.)3300 min-1
Load Center Spread : A32.6 mm
Constant :E0.45
Axial Load Factors : Y11.34
Axial Load Factors : Y00.74
Da107.0 mm
Db101.0 mm
Da131.0 mm
Db140.0 mm
Ra(Max.)3.6 mm
Rb(Max.)3.2 mm
Mass(Refer.)2.117 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 47890R/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