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KOYO / Double-row / open

KOYO 5209

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

Technical data available
Bore diameterd
45 mm
Outside diameterD
85 mm
WidthB
30.2 mm
Dynamic load ratingC
62.3 kN
Static load ratingC0
38.4 kN
Limiting speednG
4600 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 diameterd45 mm
Outside diameterD85 mm
WidthB30.2 mm
Basic dynamic load ratingC62.3 kN
Basic static load ratingC038.4 kN
Fatigue load limitPu2 kN
Limiting speednG4600 r/min
Mass≈m0.62 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
d45 mm
D85 mm
B30.2 mm
R(Min.)1.1 mm
Basic Load Ratings : Cr62.3 kN
Basic Load Ratings : C0R38.4 kN
Fatigue Load Limit : Cu2.00 kN
Limiting Speeds(Grease Lub.)4600 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Load Center Spread : A42.2 mm
Da(Min.)52 mm
Da(Max.)- mm
Da(Max.)78 mm
Ra(Max.)1 mm
Mass(Refer.)0.620 kg

Technical documents & data sheet

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Record identity
KOYO 5209
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