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IKO / Machined type needle roller bearings

IKO RNA4918

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

Technical data available
Bore diameterd
105 mm
Outside diameterD
125 mm
WidthB
35 mm
Dynamic load ratingC
113 kN
Static load ratingC0
258 kN
Limiting speednG
4000 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 specifications15 parameters
Core specifications
ParameterSymbolValue
SeriesRNA49
Variant / constructionMachined Type Needle Roller Bearings
Bore diameterd105 mm
Outside diameterD125 mm
WidthB35 mm
Basic dynamic load ratingC113 kN
Basic static load ratingC0258 kN
Reference speednref2400 r/min
Limiting speednG4000 r/min
Mass≈m0.739991 kg
Precision classJIS, Class 0
CageSteel
Bearing materialHigh Carbon Chrome Steel
Minimum operating temperatureTmin-20 °C
Maximum operating temperatureTmax120 °C
Manufacturer Identity1 parameter
Manufacturer Identity
ParameterSymbolValue
Cad Part NumberRNA4918
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Short DescriptionMachined Type Needle Roller Bearings
Long DescriptionMachined Type Caged Needle Roller Bearings, High Carbon Steel, With Oil Hole
Official Bearing FamilyNeedle Roller Bearings
Official Bearing TypeMachined Type Needle Roller Bearings
Materials2 parameters
Materials
ParameterSymbolValue
Rolling Element MaterialSUJ2
Retainer MaterialSteel
Technical Data2 parameters
Technical Data
ParameterSymbolValue
Rolling ElementRoller
RelubricatableYes

Technical documents & data sheet

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Record identity
IKO RNA4918
Document matching
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