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KOYO / Four-row cylindrical roller bearings

KOYO 34FC23120

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

Technical data available
Bore diameterd
170 mm
Outside diameterD
230 mm
WidthB
120 mm
Dynamic load ratingC
837 kN
Static load ratingC0
1680 kN
Mass≈m
14.4 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 diameterd170 mm
Outside diameterD230 mm
WidthB120 mm
Basic dynamic load ratingC837 kN
Basic static load ratingC01680 kN
Fatigue load limitPu208 kN
Mass≈m14.4 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
d170 mm
D230 mm
B120 mm
C120 mm
Fw187 mm
R(Min.)2 mm
R1(Min.)2 mm
Basic Load Ratings : Cr837 kN
Basic Load Ratings : C0R1680 kN
Fatigue Load Limit : Cu208 kN
Da(Min.)215 mm
Da(Max.)220 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)14.4 kg

Technical documents & data sheet

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Record identity
KOYO 34FC23120
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