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KOYO / Single-row / with machined cage

KOYO 7228B FY

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

Technical data available
Bore diameterd
140 mm
Outside diameterD
250 mm
WidthB
42 mm
Dynamic load ratingC
247 kN
Static load ratingC0
213 kN
Limiting speednG
2200 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 diameterd140 mm
Outside diameterD250 mm
WidthB42 mm
Basic dynamic load ratingC247 kN
Basic static load ratingC0213 kN
Fatigue load limitPu7.85 kN
Limiting speednG2200 r/min
Mass≈m7.76 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
d140 mm
D250 mm
B42 mm
R(Min.)3 mm
R1(Min.)1.1 mm
Basic Load Ratings : Cr247 kN
Basic Load Ratings : C0R213 kN
Fatigue Load Limit : Cu7.85 kN
Limiting Speeds(Grease Lub.)2200 min-1
Limiting Speeds(Oil Lub.)2900 min-1
Load Center Spread : A102.8 mm
Da(Min.)154 mm
Da(Max.)236 mm
Ra(Max.)2.5 mm
Mass(Refer.)7.76 kg

Technical documents & data sheet

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Record identity
KOYO 7228B FY
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