99,016 bearing records · search, filter and compare

KOYO / Open type

KOYO 1209

Self-aligning ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
45 mm
Outside diameterD
85 mm
WidthB
19 mm
Dynamic load ratingC
27.2 kN
Static load ratingC0
7.35 kN
Limiting speednG
7000 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 / constructionOpen type
Bore diameterd45 mm
Outside diameterD85 mm
WidthB19 mm
Basic dynamic load ratingC27.2 kN
Basic static load ratingC07.35 kN
Fatigue load limitPu0.46 kN
Limiting speednG7000 r/min
Mass≈m0.465 kg
SealingOpen
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key030-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathSelf-aligning ball bearings - Open type
Official Classification 1Self-aligning ball bearings / Open type
Technical Data17 parameters
Technical Data
ParameterSymbolValue
d45 mm
D85 mm
B19 mm
R(Min.)1.1 mm
Basic Load Ratings : Cr27.2 kN
Basic Load Ratings : C0R7.35 kN
Fatigue Load Limit : Cu0.46 kN
Limiting Speeds(Grease Lub.)7000 min-1
Limiting Speeds(Oil Lub.)8500 min-1
Constant :E0.21
Axial Load Factors : Y12.94
Axial Load Factors : Y24.56
Axial Load Factors : Y03.09
Da(Min.)51.5 mm
Da(Max.)78.5 mm
Ra(Max.)1 mm
Mass(Refer.)0.465 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 1209
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