99,016 bearing records · search, filter and compare

KOYO / Open type / four-point contact type

KOYO KFX250

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

Technical data available
Bore diameterd
635 mm
Outside diameterD
673.1 mm
WidthB
19.05 mm
Dynamic load ratingC
46.5 kN
Static load ratingC0
121 kN
d
635 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 / Four-point contact type
Bore diameterd635 mm
Outside diameterD673.1 mm
WidthB19.05 mm
Basic dynamic load ratingC46.5 kN
Basic static load ratingC0121 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 - Four-point contact type
Official Classification 1K-series super thin section ball bearings / Open type / Four-point contact type
Technical Data6 parameters
Technical Data
ParameterSymbolValue
d635 mm
D673.1 mm
B19.05 mm
R(Min.)2 mm
Basic Load Ratings : Cr46.5 kN
Basic Load Ratings : C0R121 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 KFX250
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