99,016 bearing records · search, filter and compare

KOYO / Single-row / open type

KOYO 6306R

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
41.7 kN
Static load ratingC0
17.7 kN
Limiting speednG
9800 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 diameterd30 mm
Outside diameterD72 mm
WidthB19 mm
Basic dynamic load ratingC41.7 kN
Basic static load ratingC017.7 kN
Fatigue load limitPu1.55 kN
Limiting speednG9800 r/min
Mass≈m0.379 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
d30 mm
D72 mm
B19 mm
R(Min.)1.1 mm
Basic Load Ratings : Cr41.7 kN
Basic Load Ratings : C0R17.7 kN
Fatigue Load Limit : Cu1.55 kN
Factor : F012.0
Limiting Speeds(Grease Lub.)9800 min-1
Limiting Speeds(Oil Lub.)12000 min-1
Da(Min.)36.5 mm
Da(Max.)65.5 mm
Ra(Max.)1 mm
Mass(Refer.)0.379 kg

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
KOYO 6306R
Document matching
Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

Look up another model or check drawing requirements →

Search the consolidated catalogue

Find, filter and compare bearing model data in one place.

Open model search