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KOYO / Single-row / open type

KOYO 6988

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

Technical data available
Bore diameterd
440 mm
Outside diameterD
600 mm
WidthB
74 mm
Dynamic load ratingC
529 kN
Static load ratingC0
676 kN
Limiting speednG
740 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 / constructionSingle-row / Open type
Bore diameterd440 mm
Outside diameterD600 mm
WidthB74 mm
Basic dynamic load ratingC529 kN
Basic static load ratingC0676 kN
Fatigue load limitPu21.4 kN
Limiting speednG740 r/min
Mass≈m61.3 kg
SealingOpen
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Single-row - Open type
Official Classification 1Deep groove ball bearings / Single-row / Open type
Technical Data14 parameters
Technical Data
ParameterSymbolValue
d440 mm
D600 mm
B74 mm
R(Min.)4 mm
Basic Load Ratings : Cr529 kN
Basic Load Ratings : C0R676 kN
Fatigue Load Limit : Cu21.4 kN
Factor : F016.4
Limiting Speeds(Grease Lub.)740 min-1
Limiting Speeds(Oil Lub.)870 min-1
Da(Min.)456 mm
Da(Max.)584 mm
Ra(Max.)3 mm
Mass(Refer.)61.3 kg

Technical documents & data sheet

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Record identity
KOYO 6988
Document matching
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