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SKF / Cylindrical roller bearings

SKF NJ 2968 ECMA

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

Technical data available
Bore diameterd
340 mm
Outside diameterD
460 mm
WidthB
72 mm
Dynamic load ratingC
1020 kN
Static load ratingC0
2040 kN
Limiting speednG
1900 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 diameterd340 mm
Outside diameterD460 mm
WidthB72 mm
Basic dynamic load ratingC1020 kN
Basic static load ratingC02040 kN
Fatigue load limitPu186 kN
Reference speednref1400 r/min
Limiting speednG1900 r/min
Mass≈m36.5 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter340.0 mm
Outside diameter460.0 mm
Width72.0 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. 353 mm
Diameter of spacer sleeved amax. 363 mm
Diameter of shaft abutmentd bmin. 381 mm
Diameter of housing abutmentD amax. 447 mm
Radius of filletr amax. 2.5 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1020 kN
Basic static load ratingC 02040 kN
Fatigue load limitP u186 kN
Reference speed1400 r/min
Limiting speed1900 r/min
Minimum load factork r0.07
Limiting valuee0.3
Calculation factorY0.4
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd340 mm
Outside diameterD460 mm
WidthB72 mm
Shoulder diameter of inner ringd 1≈ 377 mm
Shoulder diameter of outer ringD 1≈ 421 mm
Raceway diameter of inner ringF367 mm
Chamfer dimensionr 1,2min. 3 mm
Permissible axial displacementsmax. 3.8 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight36.5 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1020.0 kN
Basic static load rating2040.0 kN
Reference speed1400.0 r/min
Limiting speed1900.0 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 product135.0 kg CO 2 e
Indicative carbon footprint for remanufactured product44.9 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NJ 2968 ECMA
Document matching
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