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KOYO / Four-row cylindrical roller bearings

KOYO 52FC37268W

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

Technical data available
Bore diameterd
260 mm
Outside diameterD
368 mm
WidthB
268 mm
Dynamic load ratingC
2940 kN
Static load ratingC0
5990 kN
Mass≈m
89.9 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 diameterd260 mm
Outside diameterD368 mm
WidthB268 mm
Basic dynamic load ratingC2940 kN
Basic static load ratingC05990 kN
Fatigue load limitPu645 kN
Mass≈m89.9 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
d260 mm
D368 mm
B268 mm
C268 mm
Fw288 mm
R(Min.)2.1 mm
R1(Min.)2.1 mm
Basic Load Ratings : Cr2940 kN
Basic Load Ratings : C0R5990 kN
Fatigue Load Limit : Cu645 kN
Da(Min.)344 mm
Da(Max.)356 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)89.9 kg

Technical documents & data sheet

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Record identity
KOYO 52FC37268W
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