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KOYO / Single-row / nnu / cylindrical bore

KOYO NNU4972

Cylindrical roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
360 mm
Outside diameterD
480 mm
WidthB
118 mm
Dynamic load ratingC
1340 kN
Static load ratingC0
3050 kN
Limiting speednG
920 r/min

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 specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / NNU / Cylindrical bore
Bore diameterd360 mm
Outside diameterD480 mm
WidthB118 mm
Basic dynamic load ratingC1340 kN
Basic static load ratingC03050 kN
Fatigue load limitPu314 kN
Limiting speednG920 r/min
Mass≈m58.2 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key040-020-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathCylindrical roller bearings - Single-row - NNU - Cylindrical bore
Official Classification 1Cylindrical roller bearings / Single-row / NNU / Cylindrical bore
Technical Data17 parameters
Technical Data
ParameterSymbolValue
d360 mm
D480 mm
B118 mm
R(Min.)3 mm
Fw390 mm
Ew- mm
Basic Load Ratings : Cr1340 kN
Basic Load Ratings : C0R3050 kN
Fatigue Load Limit : Cu314 kN
Limiting Speeds(Grease Lub.)920 min-1
Limiting Speeds(Oil Lub.)1100 min-1
Da(Min.)- mm
Da(Max.)387 mm
Db(Min.)394 mm
Da(Max.)467 mm
Ra(Max.)2.5 mm
Mass(Refer.)58.2 kg

Technical documents & data sheet

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Record identity
KOYO NNU4972
Document matching
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