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KOYO / Four-row tapered roller bearings

KOYO 47T745238J

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

Technical data available
Bore diameterd
368.3 mm
Outside diameterD
523.875 mm
WidthB
382.588 mm
Dynamic load ratingC
6360 kN
Static load ratingC0
14500 kN
Mass≈m
268 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 diameterd368.3 mm
Outside diameterD523.875 mm
WidthB382.588 mm
Basic dynamic load ratingC6360 kN
Basic static load ratingC014500 kN
Fatigue load limitPu1360 kN
Mass≈m268 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
d368.300 mm
D523.875 mm
T382.588 mm
W382.588 mm
R(Min.)6.4 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr6360 kN
Basic Load Ratings : C0R14500 kN
Fatigue Load Limit : Cu1360 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)401 mm
Da(Max.)485 mm
S(Min.)10.5 mm
Ra(Max.)6.4 mm
Rb(Max.)3.2 mm
Mass(Refer.)268 kg

Technical documents & data sheet

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Record identity
KOYO 47T745238J
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