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KOYO / Four-row cylindrical roller bearings

KOYO 138FC98750A

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

Technical data available
Bore diameterd
690 mm
Outside diameterD
980 mm
WidthB
750 mm
Dynamic load ratingC
20700 kN
Static load ratingC0
52300 kN
Mass≈m
1860 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 diameterd690 mm
Outside diameterD980 mm
WidthB750 mm
Basic dynamic load ratingC20700 kN
Basic static load ratingC052300 kN
Fatigue load limitPu4240 kN
Mass≈m1860 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
d690 mm
D980 mm
B750 mm
C750 mm
Fw766 mm
R(Min.)6 mm
R1(Min.)7.5 mm
Basic Load Ratings : Cr20700 kN
Basic Load Ratings : C0R52300 kN
Fatigue Load Limit : Cu4240 kN
Da(Min.)910 mm
Da(Max.)952 mm
Ra(Max.)5 mm
Rb(Max.)6 mm
Mass(Refer.)1860 kg

Technical documents & data sheet

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Record identity
KOYO 138FC98750A
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