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KOYO / Single-row / metric series

KOYO 32028JR

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

Technical data available
Bore diameterd
140 mm
Outside diameterD
210 mm
WidthB
45 mm
Dynamic load ratingC
435 kN
Static load ratingC0
585 kN
Limiting speednG
1700 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 diameterd140 mm
Outside diameterD210 mm
WidthB45 mm
Basic dynamic load ratingC435 kN
Basic static load ratingC0585 kN
Fatigue load limitPu79.2 kN
Limiting speednG1700 r/min
Mass≈m5.28 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
d140 mm
D210 mm
T45 mm
B45 mm
C34 mm
R(Min.)2.5 mm
R1(Min.)2 mm
Basic Load Ratings : Cr435 kN
Basic Load Ratings : C0R585 kN
Fatigue Load Limit : Cu79.2 kN
Limiting Speeds(Grease Lub.)1700 min-1
Limiting Speeds(Oil Lub.)2200 min-1
Load Center Spread : A45.6 mm
Constant E0.46
Axial Load Factors : Y11.31
Axial Load Factors : Y00.72
Da(Min.)187 mm
Db(Max.)153 mm
Da(Max.)200 mm
Db(Min.)202 mm
Sa(Min.)8 mm
Sb(Min.)11 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)5.28 kg

Technical documents & data sheet

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Record identity
KOYO 32028JR
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