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KOYO / Four-row cylindrical roller bearings

KOYO 42FC30210

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

Technical data available
Bore diameterd
210 mm
Outside diameterD
300 mm
WidthB
210 mm
Dynamic load ratingC
1780 kN
Static load ratingC0
3490 kN
Mass≈m
47.3 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 diameterd210 mm
Outside diameterD300 mm
WidthB210 mm
Basic dynamic load ratingC1780 kN
Basic static load ratingC03490 kN
Fatigue load limitPu407 kN
Mass≈m47.3 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
d210 mm
D300 mm
B210 mm
C210 mm
Fw234 mm
R(Min.)2.1 mm
R1(Min.)2.1 mm
Basic Load Ratings : Cr1780 kN
Basic Load Ratings : C0R3490 kN
Fatigue Load Limit : Cu407 kN
Da(Min.)278 mm
Da(Max.)288 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)47.3 kg

Technical documents & data sheet

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Record identity
KOYO 42FC30210
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