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KOYO / Four-row cylindrical roller bearings

KOYO 68FC48350D

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

Technical data available
Bore diameterd
340 mm
Outside diameterD
480 mm
WidthB
350 mm
Dynamic load ratingC
5130 kN
Static load ratingC0
11500 kN
Mass≈m
201 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 diameterd340 mm
Outside diameterD480 mm
WidthB350 mm
Basic dynamic load ratingC5130 kN
Basic static load ratingC011500 kN
Fatigue load limitPu1150 kN
Mass≈m201 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
d340 mm
D480 mm
B350 mm
C350 mm
Fw378 mm
R(Min.)3 mm
R1(Min.)SP mm
Basic Load Ratings : Cr5130 kN
Basic Load Ratings : C0R11500 kN
Fatigue Load Limit : Cu1150 kN
Da(Min.)448 mm
Da(Max.)466 mm
Ra(Max.)2.5 mm
Rb(Max.)2 mm
Mass(Refer.)201 kg

Technical documents & data sheet

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Record identity
KOYO 68FC48350D
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