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KOYO / Matched pair / back-to-back / with pressed cage

KOYO 7220CDB

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

Technical data available
Bore diameterd
100 mm
Outside diameterD
180 mm
WidthB
68 mm
Dynamic load ratingC
317 kN
Static load ratingC0
273 kN
Limiting speednG
3600 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 / constructionMatched pair / Back-to-back / With pressed cage
Bore diameterd100 mm
Outside diameterD180 mm
WidthB68 mm
Basic dynamic load ratingC317 kN
Basic static load ratingC0273 kN
Fatigue load limitPu14.8 kN
Limiting speednG3600 r/min
Mass≈m6.64 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key020-020-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathAngular contact ball bearings - Matched pair - Back-to-back - With pressed cage
Official Classification 1Angular contact ball bearings / Matched pair / Back-to-back / With pressed cage
Technical Data17 parameters
Technical Data
ParameterSymbolValue
d100 mm
D180 mm
B68 mm
R(Min.)2.1 mm
R1(Min.)1.1 mm
Basic Load Ratings : Cr317 kN
Basic Load Ratings : C0R273 kN
Fatigue Load Limit : Cu14.8 kN
Factor : F014.6
Limiting Speeds(Grease Lub.)3600 min-1
Limiting Speeds(Oil Lub.)4800 min-1
Load Center Spread : A71.8 mm
Da(Min.)112 mm
Db(Max.)173 mm
Ra(Max.)2 mm
Rb(Max.)1 mm
Mass(Refer.)6.64 kg

Technical documents & data sheet

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Record identity
KOYO 7220CDB
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