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KOYO / Single-row / metric series

KOYO 32010JR

Tapered roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
50 mm
Outside diameterD
80 mm
WidthB
20 mm
Dynamic load ratingC
82.7 kN
Static load ratingC0
94.5 kN
Limiting speednG
4600 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 diameterd50 mm
Outside diameterD80 mm
WidthB20 mm
Basic dynamic load ratingC82.7 kN
Basic static load ratingC094.5 kN
Fatigue load limitPu13.8 kN
Limiting speednG4600 r/min
Mass≈m0.389 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
d50 mm
D80 mm
T20 mm
B20 mm
C15.5 mm
R(Min.)1 mm
R1(Min.)1 mm
Basic Load Ratings : Cr82.7 kN
Basic Load Ratings : C0R94.5 kN
Fatigue Load Limit : Cu13.8 kN
Limiting Speeds(Grease Lub.)4600 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Load Center Spread : A17.7 mm
Constant E0.42
Axial Load Factors : Y11.42
Axial Load Factors : Y00.78
Da(Min.)72 mm
Db(Max.)56 mm
Da(Max.)74.5 mm
Db(Min.)77 mm
Sa(Min.)4 mm
Sb(Min.)4.5 mm
Ra(Max.)1 mm
Rb(Max.)1 mm
Mass(Refer.)0.389 kg

Technical documents & data sheet

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Record identity
KOYO 32010JR
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