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KOYO / Single-row / inch series

KOYO 47686R/20A

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

Technical data available
Bore diameterd
82.55 mm
Outside diameterD
133.35 mm
WidthB
33.338 mm
Dynamic load ratingC
193 kN
Static load ratingC0
245 kN
Limiting speednG
2700 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 diameterd82.55 mm
Outside diameterD133.35 mm
WidthB33.338 mm
Basic dynamic load ratingC193 kN
Basic static load ratingC0245 kN
Fatigue load limitPu37.2 kN
Limiting speednG2700 r/min
Mass≈m1.707 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
d82.550 mm
D133.350 mm
T33.338 mm
B33.338 mm
C26.195 mm
R(Min.)3.6 mm
R1(Min.)0.8 mm
Basic Load Ratings : Cr193 kN
Basic Load Ratings : C0R245 kN
Fatigue Load Limit : Cu37.2 kN
Limiting Speeds(Grease Lub.)2700 min-1
Limiting Speeds(Oil Lub.)3700 min-1
Load Center Spread : A29.2 mm
Constant :E0.40
Axial Load Factors : Y11.48
Axial Load Factors : Y00.82
Da97.0 mm
Db90.0 mm
Da121.0 mm
Db128.0 mm
Ra(Max.)3.6 mm
Rb(Max.)0.8 mm
Mass(Refer.)1.707 kg

Technical documents & data sheet

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Record identity
KOYO 47686R/20A
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