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KOYO / Four-row tapered roller bearings

KOYO 4TR1020

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

Technical data available
Bore diameterd
1020 mm
Outside diameterD
1570 mm
WidthB
900 mm
Dynamic load ratingC
39200 kN
Static load ratingC0
98800 kN
Mass≈m
6890 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 diameterd1020 mm
Outside diameterD1570 mm
WidthB900 mm
Basic dynamic load ratingC39200 kN
Basic static load ratingC098800 kN
Fatigue load limitPu6540 kN
Mass≈m6890 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
d1020 mm
D1570 mm
T900 mm
W900 mm
R(Min.)7.5 mm
R1(Min.)7.5 mm
Basic Load Ratings : Cr39200 kN
Basic Load Ratings : C0R98800 kN
Fatigue Load Limit : Cu6540 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)1172 mm
Da(Max.)1413 mm
S(Min.)21 mm
Ra(Max.)6 mm
Rb(Max.)6 mm
Mass(Refer.)6890 kg

Technical documents & data sheet

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Record identity
KOYO 4TR1020
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