99,016 bearing records · search, filter and compare

KOYO / Open type / angular contact type

KOYO KAA055

K-series super thin section ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
139.7 mm
Outside diameterD
152.4 mm
WidthB
6.35 mm
Dynamic load ratingC
6.75 kN
Static load ratingC0
12.1 kN
d
139.7 mm

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 specifications7 parameters
Core specifications
ParameterSymbolValue
Variant / constructionOpen type / Angular contact type
Bore diameterd139.7 mm
Outside diameterD152.4 mm
WidthB6.35 mm
Basic dynamic load ratingC6.75 kN
Basic static load ratingC012.1 kN
SealingOpen
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key120-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathK-series super thin section ball bearings - Open type - Angular contact type
Official Classification 1K-series super thin section ball bearings / Open type / Angular contact type
Technical Data6 parameters
Technical Data
ParameterSymbolValue
d139.7 mm
D152.4 mm
B6.35 mm
R(Min.)0.6 mm
Basic Load Ratings : Cr6.75 kN
Basic Load Ratings : C0R12.1 kN

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 KAA055
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