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KOYO / Four-row cylindrical roller bearings

KOYO 40FC28170

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

Technical data available
Bore diameterd
200 mm
Outside diameterD
280 mm
WidthB
170 mm
Dynamic load ratingC
1370 kN
Static load ratingC0
2620 kN
Mass≈m
31.7 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 diameterd200 mm
Outside diameterD280 mm
WidthB170 mm
Basic dynamic load ratingC1370 kN
Basic static load ratingC02620 kN
Fatigue load limitPu313 kN
Mass≈m31.7 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
d200 mm
D280 mm
B170 mm
C170 mm
Fw222 mm
R(Min.)2.1 mm
R1(Min.)2.1 mm
Basic Load Ratings : Cr1370 kN
Basic Load Ratings : C0R2620 kN
Fatigue Load Limit : Cu313 kN
Da(Min.)262 mm
Da(Max.)268 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)31.7 kg

Technical documents & data sheet

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Record identity
KOYO 40FC28170
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