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KOYO / Double-row

KOYO 4306

Deep groove ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
30 mm
Outside diameterD
72 mm
WidthB
27 mm
Dynamic load ratingC
44.4 kN
Static load ratingC0
35.9 kN
Limiting speednG
5700 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 / constructionDouble-row
Bore diameterd30 mm
Outside diameterD72 mm
WidthB27 mm
Basic dynamic load ratingC44.4 kN
Basic static load ratingC035.9 kN
Fatigue load limitPu2.45 kN
Limiting speednG5700 r/min
Mass≈m0.542 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-040-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Double-row
Official Classification 1Deep groove ball bearings / Double-row
Technical Data13 parameters
Technical Data
ParameterSymbolValue
d30 mm
D72 mm
B27 mm
R(Min.)1.1 mm
Basic Load Ratings : Cr44.4 kN
Basic Load Ratings : C0R35.9 kN
Fatigue Load Limit : Cu2.45 kN
Factor : F014.0
Limiting Speeds(Grease Lub.)5700 min-1
Limiting Speeds(Oil Lub.)7600 min-1
Da(Max.)65.5 mm
Ra(Max.)1 mm
Mass(Refer.)0.542 kg

Technical documents & data sheet

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Record identity
KOYO 4306
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