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SKF / Cylindrical roller bearings

SKF NCF 18/670 V

Single row full complement cylindrical roller bearing, ncf design technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
670 mm
Outside diameterD
820 mm
WidthB
69 mm
Dynamic load ratingC
1300 kN
Static load ratingC0
3150 kN
Limiting speednG
340 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 specifications14 parameters
Core specifications
ParameterSymbolValue
Variant / constructionCylindrical roller bearings
Bore diameterd670 mm
Outside diameterD820 mm
WidthB69 mm
Basic dynamic load ratingC1300 kN
Basic static load ratingC03150 kN
Fatigue load limitPu245 kN
Reference speednref280 r/min
Limiting speednG340 r/min
Mass≈m73.8 kg
Internal clearanceCN
SealingWithout
CageWithout
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter670.0 mm
Outside diameter820.0 mm
Width69.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCylindrical roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-full-complement-cylindrical-roller-bearings
Structure group IDBC1_004
Available from SKFYes
RemanufacturableYes
Engineering — Abutment dimensions5 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 685 mm
Abutment diameter shaftd as718 mm
Abutment diameter housingD amax. 805 mm
Abutment diameter housingD bmax. 805 mm
Fillet radiusr amax. 3 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1300 kN
Basic static load ratingC 03150 kN
Fatigue load limitP u245 kN
Reference speed280 r/min
Limiting speed340 r/min
Calculation factork r0.1
Limiting valuee0.2
Calculation factorY0.6
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd670 mm
Outside diameterD820 mm
WidthB69 mm
Shoulder diameter inner ringd 1≈ 725 mm
Shoulder diameter outer ringD 1≈ 769 mm
Raceway diameter outer ringE783 mm
Permissible axial displacement from the normal position of one bearing ring relative to the othersmax. 8 mm
Chamfer dimensionr 1,2min. 4 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight73.8 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1300.0 kN
Basic static load rating3150.0 kN
Reference speed280.0 r/min
Limiting speed340.0 r/min
Properties19 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial displacement capabilityIn one direction
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageWithout
DesignNon-separable
Number of flanges, outer ring1
Number of flanges, inner ring2
Loose flangeNone
Radial internal clearanceCN
Tolerance classNormal
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product273.0 kg CO 2 e
Indicative carbon footprint for remanufactured product90.8 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NCF 18/670 V
Document matching
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