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KOYO / Four-row tapered roller bearings

KOYO 47T765850

Rolling mill roll neck bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
380 mm
Outside diameterD
580 mm
WidthB
500 mm
Dynamic load ratingC
7960 kN
Static load ratingC0
17500 kN
Mass≈m
478 kg

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 specifications8 parameters
Core specifications
ParameterSymbolValue
Variant / constructionFour-row tapered roller bearings
Bore diameterd380 mm
Outside diameterD580 mm
WidthB500 mm
Basic dynamic load ratingC7960 kN
Basic static load ratingC017500 kN
Fatigue load limitPu1570 kN
Mass≈m478 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key140-020-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathRolling mill roll neck bearings - Four-row tapered roller bearings
Official Classification 1Rolling mill roll neck bearings / Four-row tapered roller bearings
Technical Data19 parameters
Technical Data
ParameterSymbolValue
d380 mm
D580 mm
T500 mm
W500 mm
R(Min.)5 mm
R1(Min.)6 mm
Basic Load Ratings : Cr7960 kN
Basic Load Ratings : C0R17500 kN
Fatigue Load Limit : Cu1570 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)427 mm
Da(Max.)529 mm
S(Min.)10.5 mm
Ra(Max.)4 mm
Rb(Max.)5 mm
Mass(Refer.)478 kg

Technical documents & data sheet

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Record identity
KOYO 47T765850
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