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KOYO / Four-row tapered roller bearings

KOYO 47288A

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

Technical data available
Bore diameterd
440 mm
Outside diameterD
650 mm
WidthB
334 mm
Dynamic load ratingC
5890 kN
Static load ratingC0
12200 kN
Mass≈m
375 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 diameterd440 mm
Outside diameterD650 mm
WidthB334 mm
Basic dynamic load ratingC5890 kN
Basic static load ratingC012200 kN
Fatigue load limitPu1130 kN
Mass≈m375 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
d440 mm
D650 mm
T334 mm
W334 mm
R(Min.)6 mm
R1(Min.)6 mm
Basic Load Ratings : Cr5890 kN
Basic Load Ratings : C0R12200 kN
Fatigue Load Limit : Cu1130 kN
Axial Load Factors : Y22.43 mm
Axial Load Factors : Y33.61
Axial Load Factors : Y02.37
Constant E0.28
Da(Min.)500 mm
Da(Max.)595 mm
S(Min.)9.5 mm
Ra(Max.)5 mm
Rb(Max.)5 mm
Mass(Refer.)375 kg

Technical documents & data sheet

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Record identity
KOYO 47288A
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