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SKF / Cylindrical roller bearings

SKF NJ 18/800 ECMA

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

Technical data available
Bore diameterd
800 mm
Outside diameterD
980 mm
WidthB
82 mm
Dynamic load ratingC
1720 kN
Static load ratingC0
4150 kN
Limiting speednG
700 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 diameterd800 mm
Outside diameterD980 mm
WidthB82 mm
Basic dynamic load ratingC1720 kN
Basic static load ratingC04150 kN
Fatigue load limitPu280 kN
Reference speednref530 r/min
Limiting speednG700 r/min
Mass≈m143 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter800.0 mm
Outside diameter980.0 mm
Width82.0 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-cylindrical-roller-bearings
Structure group IDBC1_001_101
Available from SKFYes
RemanufacturableYes
Engineering — Abutment dimensions5 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of spacer sleeved amin. 818 mm
Diameter of spacer sleeved amax. 838 mm
Diameter of shaft abutmentd bmin. 866 mm
Diameter of housing abutmentD amax. 962 mm
Radius of filletr amax. 4 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1720 kN
Basic static load ratingC 04150 kN
Fatigue load limitP u280 kN
Reference speed530 r/min
Limiting speed700 r/min
Minimum load factork r0.05
Limiting valuee0.2
Calculation factorY0.6
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd800 mm
Outside diameterD980 mm
WidthB82 mm
Shoulder diameter of inner ringd 1≈ 860 mm
Shoulder diameter of outer ringD 1≈ 922 mm
Raceway diameter of inner ringF846 mm
Chamfer dimensionr 1,2min. 5 mm
Permissible axial displacementsmax. 9.9 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight143.0 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1720.0 kN
Basic static load rating4150.0 kN
Reference speed530.0 r/min
Limiting speed700.0 r/min
Properties18 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial displacement capabilityIn one direction
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageMachined brass
Number of flanges, outer ring2
Number of flanges, inner ring1
Loose flangeNone
Radial internal clearanceCN
Tolerance classNormal
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product531.0 kg CO 2 e
Indicative carbon footprint for remanufactured product176.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NJ 18/800 ECMA
Document matching
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