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SKF / Cylindrical roller bearings

SKF NU 2311 ECML

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

Technical data available
Bore diameterd
55 mm
Outside diameterD
120 mm
WidthB
43 mm
Dynamic load ratingC
232 kN
Static load ratingC0
232 kN
Limiting speednG
11000 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 diameterd55 mm
Outside diameterD120 mm
WidthB43 mm
Basic dynamic load ratingC232 kN
Basic static load ratingC0232 kN
Fatigue load limitPu30.5 kN
Reference speednref6000 r/min
Limiting speednG11000 r/min
Mass≈m2.43 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter55.0 mm
Outside diameter120.0 mm
Width43.0 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
RemanufacturableNo
Engineering — Abutment dimensions6 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of spacer sleeved amin. 65 mm
Diameter of spacer sleeved amax. 68 mm
Diameter of shaft abutmentd bmin. 73 mm
Diameter of housing abutmentD amax. 109.2 mm
Radius of filletr amax. 2 mm
Radius of filletr bmax. 2 mm
Engineering — Associated products1 parameter
Engineering — Associated products
ParameterSymbolValue
Angle ringHJ 2311 EC
Engineering — Calculation data9 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC232 kN
Basic static load ratingC 0232 kN
Fatigue load limitP u30.5 kN
Reference speed6000 r/min
Limiting speed11000 r/min
Minimum load factork r0.38
Limiting valuee0.3
Calculation factorY0.4
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd55 mm
Outside diameterD120 mm
WidthB43 mm
Shoulder diameter of outer ringD 1≈ 101 mm
Raceway diameter of inner ringF70.5 mm
Chamfer dimensionr 1,2min. 2 mm
Chamfer dimensionr 3,4min. 2 mm
Permissible axial displacementsmax. 3.5 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight2.43 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating232.0 kN
Basic static load rating232.0 kN
Reference speed6000.0 r/min
Limiting speed11000.0 r/min
SKF performance classSKF Explorer
Properties16 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial displacement capabilityIn both directions
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageMachined brass
Number of flanges, outer ring2
Number of flanges, inner ring0
Loose flangeNone
Radial internal clearanceCN
Tolerance classNormal
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product9.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NU 2311 ECML
Document matching
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