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KOYO / Single-row / metric series

KOYO 30221JR

Tapered roller 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
360 kN
Static load ratingC0
380 kN
Limiting speednG
2000 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 / Metric series
Bore diameterd105 mm
Outside diameterD190 mm
WidthB36 mm
Basic dynamic load ratingC360 kN
Basic static load ratingC0380 kN
Fatigue load limitPu52.3 kN
Limiting speednG2000 r/min
Mass≈m4.49 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Metric series
Official Classification 1Tapered roller bearings / Single-row / Metric series
Technical Data25 parameters
Technical Data
ParameterSymbolValue
d105 mm
D190 mm
T39 mm
B36 mm
C30 mm
R(Min.)3 mm
R1(Min.)2.5 mm
Basic Load Ratings : Cr360 kN
Basic Load Ratings : C0R380 kN
Fatigue Load Limit : Cu52.3 kN
Limiting Speeds(Grease Lub.)2000 min-1
Limiting Speeds(Oil Lub.)2600 min-1
Load Center Spread : A39.0 mm
Constant E0.42
Axial Load Factors : Y11.43
Axial Load Factors : Y00.79
Da(Min.)165 mm
Db(Max.)122 mm
Da(Max.)178 mm
Db(Min.)178 mm
Sa(Min.)6 mm
Sb(Min.)9 mm
Ra(Max.)2.5 mm
Rb(Max.)2 mm
Mass(Refer.)4.49 kg

Technical documents & data sheet

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Record identity
KOYO 30221JR
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