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KOYO / Four-row cylindrical roller bearings

KOYO 4CR545

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

Technical data available
Bore diameterd
545 mm
Outside diameterD
810 mm
WidthB
580 mm
Dynamic load ratingC
14100 kN
Static load ratingC0
32100 kN
Mass≈m
1090 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 cylindrical roller bearings
Bore diameterd545 mm
Outside diameterD810 mm
WidthB580 mm
Basic dynamic load ratingC14100 kN
Basic static load ratingC032100 kN
Fatigue load limitPu2820 kN
Mass≈m1090 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key140-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathRolling mill roll neck bearings - Four-row cylindrical roller bearings
Official Classification 1Rolling mill roll neck bearings / Four-row cylindrical roller bearings
Technical Data15 parameters
Technical Data
ParameterSymbolValue
d545 mm
D810 mm
B580 mm
C580 mm
Fw614 mm
R(Min.)6 mm
R1(Min.)6 mm
Basic Load Ratings : Cr14100 kN
Basic Load Ratings : C0R32100 kN
Fatigue Load Limit : Cu2820 kN
Da(Min.)744 mm
Da(Max.)782 mm
Ra(Max.)5 mm
Rb(Max.)5 mm
Mass(Refer.)1090 kg

Technical documents & data sheet

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Record identity
KOYO 4CR545
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