99,016 bearing records · search, filter and compare

KOYO / Single-row / shielded/sealed type / extremely light contact sealed

KOYO 6301 2RD

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

Technical data available
Bore diameterd
12 mm
Outside diameterD
37 mm
WidthB
12 mm
Dynamic load ratingC
12.1 kN
Static load ratingC0
4.2 kN
Limiting speednG
18000 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 / Shielded/sealed type / Extremely light contact sealed
Bore diameterd12 mm
Outside diameterD37 mm
WidthB12 mm
Basic dynamic load ratingC12.1 kN
Basic static load ratingC04.2 kN
Fatigue load limitPu0.42 kN
Limiting speednG18000 r/min
Mass≈m0.06 kg
SealingExtremely light contact sealed
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-010-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Single-row - Shielded/sealed type - Extremely light contact sealed
Official Classification 1Deep groove ball bearings / Single-row / Shielded/sealed type / Extremely light contact sealed
Technical Data14 parameters
Technical Data
ParameterSymbolValue
d12 mm
D37 mm
B12 mm
R(Min.)1 mm
Basic Load Ratings : Cr12.1 kN
Basic Load Ratings : C0R4.20 kN
Fatigue Load Limit : Cu0.420 kN
Factor : F011.1
Limiting Speeds(Grease Lub.)18000 min-1
Da(Min.)17 mm
Da(Max.)17.5 mm
Da(Max.)32 mm
Ra(Max.)1 mm
Mass(Refer.)0.060 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 6301 2RD
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