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KOYO / Single-row / metric series

KOYO 30209JR

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

Technical data available
Bore diameterd
45 mm
Outside diameterD
85 mm
WidthB
19 mm
Dynamic load ratingC
83.9 kN
Static load ratingC0
77.4 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 diameterd45 mm
Outside diameterD85 mm
WidthB19 mm
Basic dynamic load ratingC83.9 kN
Basic static load ratingC077.4 kN
Fatigue load limitPu11.6 kN
Limiting speednG4600 r/min
Mass≈m0.502 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
d45 mm
D85 mm
T20.75 mm
B19 mm
C16 mm
R(Min.)1.5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr83.9 kN
Basic Load Ratings : C0R77.4 kN
Fatigue Load Limit : Cu11.6 kN
Limiting Speeds(Grease Lub.)4600 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Load Center Spread : A18.9 mm
Constant E0.40
Axial Load Factors : Y11.48
Axial Load Factors : Y00.81
Da(Min.)74 mm
Db(Max.)54 mm
Da(Max.)76.5 mm
Db(Min.)80 mm
Sa(Min.)3 mm
Sb(Min.)4.5 mm
Ra(Max.)1.5 mm
Rb(Max.)1.5 mm
Mass(Refer.)0.502 kg

Technical documents & data sheet

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Record identity
KOYO 30209JR
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