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SKF / Cylindrical roller bearings

SKF NJ 18/1180 ECMA

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

Technical data available
Bore diameterd
1180 mm
Outside diameterD
1420 mm
WidthB
106 mm
Dynamic load ratingC
3030 kN
Static load ratingC0
7800 kN
Limiting speednG
400 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 diameterd1180 mm
Outside diameterD1420 mm
WidthB106 mm
Basic dynamic load ratingC3030 kN
Basic static load ratingC07800 kN
Fatigue load limitPu455 kN
Reference speednref320 r/min
Limiting speednG400 r/min
Mass≈m354 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter1180.0 mm
Outside diameter1420.0 mm
Width106.0 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. 1203 mm
Diameter of spacer sleeved amax. 1228 mm
Diameter of shaft abutmentd bmin. 1270 mm
Diameter of housing abutmentD amax. 1397 mm
Radius of filletr amax. 5 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC3030 kN
Basic static load ratingC 07800 kN
Fatigue load limitP u455 kN
Reference speed320 r/min
Limiting speed400 r/min
Minimum load factork r0.05
Limiting valuee0.2
Calculation factorY0.6
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd1180 mm
Outside diameterD1420 mm
WidthB106 mm
Shoulder diameter of inner ringd 1≈ 1263 mm
Shoulder diameter of outer ringD 1≈ 1338 mm
Raceway diameter of inner ringF1242 mm
Chamfer dimensionr 1,2min. 6 mm
Permissible axial displacementsmax. 12 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight354.0 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating3030.0 kN
Basic static load rating7800.0 kN
Reference speed320.0 r/min
Limiting speed400.0 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 product1310.0 kg CO 2 e
Indicative carbon footprint for remanufactured product435.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NJ 18/1180 ECMA
Document matching
Exact designation, assembly scope, revision and units must agree.

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