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KOYO / Single-row / metric series

KOYO 30328JR

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

Technical data available
Bore diameterd
140 mm
Outside diameterD
300 mm
WidthB
62 mm
Dynamic load ratingC
938 kN
Static load ratingC0
962 kN
Limiting speednG
1300 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 diameterD300 mm
WidthB62 mm
Basic dynamic load ratingC938 kN
Basic static load ratingC0962 kN
Fatigue load limitPu114 kN
Limiting speednG1300 r/min
Mass≈m22.6 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
D300 mm
T67.75 mm
B62 mm
C53 mm
R(Min.)5 mm
R1(Min.)4 mm
Basic Load Ratings : Cr938 kN
Basic Load Ratings : C0R962 kN
Fatigue Load Limit : Cu114 kN
Limiting Speeds(Grease Lub.)1300 min-1
Limiting Speeds(Oil Lub.)1700 min-1
Load Center Spread : A56.9 mm
Constant E0.35
Axial Load Factors : Y11.74
Axial Load Factors : Y00.96
Da(Min.)254 mm
Db(Max.)179 mm
Da(Max.)282 mm
Db(Min.)273 mm
Sa(Min.)10 mm
Sb(Min.)14.5 mm
Ra(Max.)4 mm
Rb(Max.)3 mm
Mass(Refer.)22.6 kg

Technical documents & data sheet

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Record identity
KOYO 30328JR
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