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KOYO / Four-row tapered roller bearings

KOYO 4TR530-2

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

Technical data available
Bore diameterd
530 mm
Outside diameterD
730 mm
WidthB
540 mm
Dynamic load ratingC
10200 kN
Static load ratingC0
25000 kN
Mass≈m
669 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 diameterd530 mm
Outside diameterD730 mm
WidthB540 mm
Basic dynamic load ratingC10200 kN
Basic static load ratingC025000 kN
Fatigue load limitPu2090 kN
Mass≈m669 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
d530 mm
D730 mm
T540 mm
W535 mm
R(Min.)4 mm
R1(Min.)SP mm
Basic Load Ratings : Cr10200 kN
Basic Load Ratings : C0R25000 kN
Fatigue Load Limit : Cu2090 kN
Axial Load Factors : Y21.96 mm
Axial Load Factors : Y32.92
Axial Load Factors : Y01.92
Constant E0.34
Da(Min.)567 mm
Da(Max.)677 mm
S(Min.)6 mm
Ra(Max.)3 mm
Rb(Max.)3 mm
Mass(Refer.)669 kg

Technical documents & data sheet

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Record identity
KOYO 4TR530-2
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