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KOYO / Four-row tapered roller bearings

KOYO 47T221815

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

Technical data available
Bore diameterd
110 mm
Outside diameterD
180 mm
WidthB
154 mm
Dynamic load ratingC
950 kN
Static load ratingC0
1530 kN
Mass≈m
15.4 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 diameterd110 mm
Outside diameterD180 mm
WidthB154 mm
Basic dynamic load ratingC950 kN
Basic static load ratingC01530 kN
Fatigue load limitPu218 kN
Mass≈m15.4 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
d110 mm
D180 mm
T154 mm
W154 mm
R(Min.)2 mm
R1(Min.)2.5 mm
Basic Load Ratings : Cr950 kN
Basic Load Ratings : C0R1530 kN
Fatigue Load Limit : Cu218 kN
Axial Load Factors : Y21.74 mm
Axial Load Factors : Y32.59
Axial Load Factors : Y01.70
Constant E0.39
Da(Min.)127 mm
Da(Max.)162 mm
S(Min.)5.9 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)15.4 kg

Technical documents & data sheet

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Record identity
KOYO 47T221815
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