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SKF / Cylindrical roller bearings

SKF NJ 2348 ECML

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

Technical data available
Bore diameterd
240 mm
Outside diameterD
500 mm
WidthB
155 mm
Dynamic load ratingC
2750 kN
Static load ratingC0
4000 kN
Limiting speednG
2400 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 diameterd240 mm
Outside diameterD500 mm
WidthB155 mm
Basic dynamic load ratingC2750 kN
Basic static load ratingC04000 kN
Fatigue load limitPu345 kN
Reference speednref1200 r/min
Limiting speednG2400 r/min
Mass≈m155 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter240.0 mm
Outside diameter500.0 mm
Width155.0 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. 258 mm
Diameter of spacer sleeved amax. 294 mm
Diameter of shaft abutmentd bmin. 331 mm
Diameter of housing abutmentD amax. 482 mm
Radius of filletr amax. 4 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC2750 kN
Basic static load ratingC 04000 kN
Fatigue load limitP u345 kN
Reference speed1200 r/min
Limiting speed2400 r/min
Minimum load factork r0.38
Limiting valuee0.3
Calculation factorY0.4
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd240 mm
Outside diameterD500 mm
WidthB155 mm
Shoulder diameter of inner ringd 1≈ 326 mm
Shoulder diameter of outer ringD 1≈ 425 mm
Raceway diameter of inner ringF299 mm
Chamfer dimensionr 1,2min. 5 mm
Permissible axial displacementsmax. 4 mm
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight155.0 kg
eClass code23-05-09-01
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating2750.0 kN
Basic static load rating4000.0 kN
Reference speed1200.0 r/min
Limiting speed2400.0 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 product574.0 kg CO 2 e
Indicative carbon footprint for remanufactured product191.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NJ 2348 ECML
Document matching
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