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KOYO / Single-row / with machined cage

KOYO 7221 FY

Angular contact ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
105 mm
Outside diameterD
190 mm
WidthB
36 mm
Dynamic load ratingC
187 kN
Static load ratingC0
132 kN
Limiting speednG
3900 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 specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / With machined cage
Bore diameterd105 mm
Outside diameterD190 mm
WidthB36 mm
Basic dynamic load ratingC187 kN
Basic static load ratingC0132 kN
Fatigue load limitPu6.7 kN
Limiting speednG3900 r/min
Mass≈m3.95 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key020-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathAngular contact ball bearings - Single-row - With machined cage
Official Classification 1Angular contact ball bearings / Single-row / With machined cage
Technical Data15 parameters
Technical Data
ParameterSymbolValue
d105 mm
D190 mm
B36 mm
R(Min.)2.1 mm
R1(Min.)1.1 mm
Basic Load Ratings : Cr187 kN
Basic Load Ratings : C0R132 kN
Fatigue Load Limit : Cu6.70 kN
Limiting Speeds(Grease Lub.)3900 min-1
Limiting Speeds(Oil Lub.)4900 min-1
Load Center Spread : A61.0 mm
Da(Min.)117 mm
Da(Max.)178 mm
Ra(Max.)2 mm
Mass(Refer.)3.95 kg

Technical documents & data sheet

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Record identity
KOYO 7221 FY
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