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KOYO / Four-row tapered roller bearings

KOYO M262449D/10/10D

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

Technical data available
Bore diameterd
347.663 mm
Outside diameterD
469.9 mm
WidthB
292.1 mm
Dynamic load ratingC
3850 kN
Static load ratingC0
9040 kN
Mass≈m
145 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 diameterd347.663 mm
Outside diameterD469.9 mm
WidthB292.1 mm
Basic dynamic load ratingC3850 kN
Basic static load ratingC09040 kN
Fatigue load limitPu879 kN
Mass≈m145 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
d347.663 mm
D469.900 mm
T292.100 mm
W292.100 mm
R(Min.)3.2 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr3850 kN
Basic Load Ratings : C0R9040 kN
Fatigue Load Limit : Cu879 kN
Axial Load Factors : Y22.03 mm
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Constant E0.33
Da(Min.)374 mm
Da(Max.)436 mm
S(Min.)10 mm
Ra(Max.)3.2 mm
Rb(Max.)3.2 mm
Mass(Refer.)145 kg

Technical documents & data sheet

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Record identity
KOYO M262449D/10/10D
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