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KOYO / Four-row tapered roller bearings

KOYO 4TR750

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

Technical data available
Bore diameterd
750 mm
Outside diameterD
950 mm
WidthB
410 mm
Dynamic load ratingC
10400 kN
Static load ratingC0
29000 kN
Mass≈m
705 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 diameterd750 mm
Outside diameterD950 mm
WidthB410 mm
Basic dynamic load ratingC10400 kN
Basic static load ratingC029000 kN
Fatigue load limitPu2320 kN
Mass≈m705 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
d750.000 mm
D950.000 mm
T410.000 mm
W410.000 mm
R(Min.)4 mm
R1(Min.)2.5 mm
Basic Load Ratings : Cr10400 kN
Basic Load Ratings : C0R29000 kN
Fatigue Load Limit : Cu2320 kN
Axial Load Factors : Y21.68 mm
Axial Load Factors : Y32.50
Axial Load Factors : Y01.68
Constant E0.40
Da(Min.)791 mm
Da(Max.)900 mm
S(Min.)11.5 mm
Ra(Max.)4 mm
Rb(Max.)2 mm
Mass(Refer.)705 kg

Technical documents & data sheet

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Record identity
KOYO 4TR750
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