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KOYO / Single-row / metric series

KOYO 30304AJR

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

Technical data available
Bore diameterd
20 mm
Outside diameterD
52 mm
WidthB
16 mm
Dynamic load ratingC
45.3 kN
Static load ratingC0
35.1 kN
Limiting speednG
8300 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 / Metric series
Bore diameterd20 mm
Outside diameterD52 mm
WidthB16 mm
Basic dynamic load ratingC45.3 kN
Basic static load ratingC035.1 kN
Fatigue load limitPu5.05 kN
Limiting speednG8300 r/min
Mass≈m0.179 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Metric series
Official Classification 1Tapered roller bearings / Single-row / Metric series
Technical Data25 parameters
Technical Data
ParameterSymbolValue
d20 mm
D52 mm
T16.25 mm
B16 mm
C13 mm
R(Min.)1.5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr45.3 kN
Basic Load Ratings : C0R35.1 kN
Fatigue Load Limit : Cu5.05 kN
Limiting Speeds(Grease Lub.)8300 min-1
Limiting Speeds(Oil Lub.)11000 min-1
Load Center Spread : A11.1 mm
Constant E0.30
Axial Load Factors : Y12.00
Axial Load Factors : Y01.10
Da(Min.)44 mm
Db(Max.)28 mm
Da(Max.)44 mm
Db(Min.)47 mm
Sa(Min.)2 mm
Sb(Min.)3 mm
Ra(Max.)1.5 mm
Rb(Max.)1.5 mm
Mass(Refer.)0.179 kg

Technical documents & data sheet

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Record identity
KOYO 30304AJR
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