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KOYO / Double-row / open

KOYO 3308

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

Technical data available
Bore diameterd
40 mm
Outside diameterD
90 mm
WidthB
36.5 mm
Dynamic load ratingC
67.6 kN
Static load ratingC0
53.8 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 diameterd40 mm
Outside diameterD90 mm
WidthB36.5 mm
Basic dynamic load ratingC67.6 kN
Basic static load ratingC053.8 kN
Fatigue load limitPu2.8 kN
Limiting speednG4600 r/min
Mass≈m1.07 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
d40 mm
D90 mm
B36.5 mm
R(Min.)1.5 mm
Basic Load Ratings : Cr67.6 kN
Basic Load Ratings : C0R53.8 kN
Fatigue Load Limit : Cu2.80 kN
Limiting Speeds(Grease Lub.)4600 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Load Center Spread : A58.9 mm
Da(Min.)49 mm
Da(Max.)- mm
Da(Max.)81.5 mm
Ra(Max.)1.5 mm
Mass(Refer.)1.07 kg

Technical documents & data sheet

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Record identity
KOYO 3308
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