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KOYO / Double-row / open

KOYO 3304

Angular contact ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
20 mm
Outside diameterD
52 mm
WidthB
22.2 mm
Dynamic load ratingC
26 kN
Static load ratingC0
18.4 kN
Limiting speednG
8200 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 specifications10 parameters
Core specifications
ParameterSymbolValue
Variant / constructionDouble-row / Open
Bore diameterd20 mm
Outside diameterD52 mm
WidthB22.2 mm
Basic dynamic load ratingC26 kN
Basic static load ratingC018.4 kN
Fatigue load limitPu0.95 kN
Limiting speednG8200 r/min
Mass≈m0.23 kg
SealingOpen
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key020-030-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathAngular contact ball bearings - Double-row - Open
Official Classification 1Angular contact ball bearings / Double-row / Open
Technical Data15 parameters
Technical Data
ParameterSymbolValue
d20 mm
D52 mm
B22.2 mm
R(Min.)1.1 mm
Basic Load Ratings : Cr26.0 kN
Basic Load Ratings : C0R18.4 kN
Fatigue Load Limit : Cu0.950 kN
Limiting Speeds(Grease Lub.)8200 min-1
Limiting Speeds(Oil Lub.)11000 min-1
Load Center Spread : A33.8 mm
Da(Min.)27 mm
Da(Max.)- mm
Da(Max.)45 mm
Ra(Max.)1 mm
Mass(Refer.)0.230 kg

Technical documents & data sheet

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Record identity
KOYO 3304
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