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KOYO / Four-row tapered roller bearings

KOYO 4TR520

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

Technical data available
Bore diameterd
520 mm
Outside diameterD
735 mm
WidthB
535 mm
Dynamic load ratingC
11400 kN
Static load ratingC0
27200 kN
Mass≈m
726 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 tapered roller bearings
Bore diameterd520 mm
Outside diameterD735 mm
WidthB535 mm
Basic dynamic load ratingC11400 kN
Basic static load ratingC027200 kN
Fatigue load limitPu2270 kN
Mass≈m726 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key140-020-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathRolling mill roll neck bearings - Four-row tapered roller bearings
Official Classification 1Rolling mill roll neck bearings / Four-row tapered roller bearings
Technical Data19 parameters
Technical Data
ParameterSymbolValue
d520 mm
D735 mm
T535 mm
W535 mm
R(Min.)5 mm
R1(Min.)2.5 mm
Basic Load Ratings : Cr11400 kN
Basic Load Ratings : C0R27200 kN
Fatigue Load Limit : Cu2270 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)564 mm
Da(Max.)681 mm
S(Min.)11.5 mm
Ra(Max.)4 mm
Rb(Max.)2.5 mm
Mass(Refer.)726 kg

Technical documents & data sheet

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Record identity
KOYO 4TR520
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