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KOYO / Single-row

KOYO 6306NR

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
19 mm
Dynamic load ratingC
33.3 kN
Static load ratingC0
15 kN
Limiting speednG
9600 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 / constructionSingle-row
Bore diameterd30 mm
Outside diameterD72 mm
WidthB19 mm
Basic dynamic load ratingC33.3 kN
Basic static load ratingC015 kN
Fatigue load limitPu1.15 kN
Limiting speednG9600 r/min
Mass≈m0.346 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-010-030
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Single-row
Official Classification 1Deep groove ball bearings / Single-row
Technical Data20 parameters
Technical Data
ParameterSymbolValue
d30 mm
D72 mm
B19 mm
R(Min.)1.1 mm
R1(Min.)0.5 mm
Basic Load Ratings : Cr33.3 kN
Basic Load Ratings : C0R15.0 kN
Fatigue Load Limit : Cu1.15 kN
Factor : F013.3
Limiting Speeds(Grease Lub.)9600 min-1
Limiting Speeds(Oil Lub.)12000 min-1
Dimensions Of Locating Snap Ring : D2(Min.)78.6 mm
Dimensions Of Locating Snap Ring : F(±0.05)1.65 mm
Da(Min.)36.5 mm
Da(Max.)65.5 mm
Dx(Min.)80 mm
Cy(Max.)4.67 mm
Ra(Max.)1 mm
Rb(Max.)0.5 mm
Mass(Refer.)0.346 kg

Technical documents & data sheet

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Record identity
KOYO 6306NR
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