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SKF / Super-precision cylindrical roller bearings

SKF NN 3018 KTN9/HC5SP

Super-precision double row cylindrical roller bearing with tapered bore technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
90 mm
Outside diameterD
140 mm
WidthB
37 mm
Dynamic load ratingC
138 kN
Static load ratingC0
216 kN
Mass≈m
1.64 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSuper-precision cylindrical roller bearings
Bore diameterd90 mm
Outside diameterD140 mm
WidthB37 mm
Basic dynamic load ratingC138 kN
Basic static load ratingC0216 kN
Fatigue load limitPu22 kN
Mass≈m1.64 kg
Internal clearanceC1
SealingWithout
CageNon-metallic
Bearing materialHybrid (ceramic rollers)
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter90.0 mm
Outside diameter140.0 mm
Width37.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categorySuper-precision cylindrical roller bearings
Official taxonomy path/products/super-precision-bearings/cylindrical-roller-bearings
Structure group IDBC2_010
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions5 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 98 mm
Abutment diameter housingD amin. 129 mm
Abutment diameter housingD amax. 132 mm
Fillet radiusr amax. 1.5 mm
Oil nozzle position (not for variants with TNHA cage)d n125.2 mm
Engineering — Calculation data4 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC138 kN
Basic static load ratingC 0216 kN
Fatigue load limitP u22 kN
Reference grease quantityG ref11.1 cm³
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd90 mm
Outside diameterD140 mm
WidthB37 mm
Shoulder diameter inner ring (NN design)d 1109.4 mm
Raceway diameter outer ring (NN design)E127 mm
Chamfer dimension outer ringr 1,2min. 1.5 mm
Chamfer dimension inner ring (bearing with tapered bore)r 3,4min. 1 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other (all)smax. 2 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeTapered 1:12
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1.64 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance2 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating138.0 kN
Basic static load rating216.0 kN
Properties16 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows2
Bore typeTapered 1:12
CageNon-metallic
DesignNN
Number of flanges, outer ring0
Number of flanges, inner ring3
Loose flangeNone
Radial internal clearanceC1
Tolerance classClass SP (SP)
Material, bearingHybrid (ceramic rollers)
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product6.1 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NN 3018 KTN9/HC5SP
Document matching
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