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KOYO / Four-row tapered roller bearings

KOYO 4TR609

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

Technical data available
Bore diameterd
609.6 mm
Outside diameterD
813.562 mm
WidthB
479.425 mm
Dynamic load ratingC
10000 kN
Static load ratingC0
27100 kN
Mass≈m
710 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 diameterd609.6 mm
Outside diameterD813.562 mm
WidthB479.425 mm
Basic dynamic load ratingC10000 kN
Basic static load ratingC027100 kN
Fatigue load limitPu2210 kN
Mass≈m710 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
d609.600 mm
D813.562 mm
T479.425 mm
W479.425 mm
R(Min.)6.4 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr10000 kN
Basic Load Ratings : C0R27100 kN
Fatigue Load Limit : Cu2210 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)657 mm
Da(Max.)759 mm
S(Min.)9 mm
Ra(Max.)6.4 mm
Rb(Max.)3.2 mm
Mass(Refer.)710 kg

Technical documents & data sheet

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Record identity
KOYO 4TR609
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