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KOYO / Double-row

KOYO 4307

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

Technical data available
Bore diameterd
35 mm
Outside diameterD
80 mm
WidthB
31 mm
Dynamic load ratingC
50.7 kN
Static load ratingC0
41.8 kN
Limiting speednG
5200 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 diameterd35 mm
Outside diameterD80 mm
WidthB31 mm
Basic dynamic load ratingC50.7 kN
Basic static load ratingC041.8 kN
Fatigue load limitPu2.85 kN
Limiting speednG5200 r/min
Mass≈m0.752 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
d35 mm
D80 mm
B31 mm
R(Min.)1.5 mm
Basic Load Ratings : Cr50.7 kN
Basic Load Ratings : C0R41.8 kN
Fatigue Load Limit : Cu2.85 kN
Factor : F014.1
Limiting Speeds(Grease Lub.)5200 min-1
Limiting Speeds(Oil Lub.)7000 min-1
Da(Max.)72 mm
Ra(Max.)1.5 mm
Mass(Refer.)0.752 kg

Technical documents & data sheet

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Record identity
KOYO 4307
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