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SKF / Cylindrical roller bearings

SKF NU 3068 MA

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

Technical data available
Bore diameterd
340 mm
Outside diameterD
520 mm
WidthB
133 mm
Dynamic load ratingC
2200 kN
Static load ratingC0
4150 kN
Limiting speednG
1700 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 diameterD520 mm
WidthB133 mm
Basic dynamic load ratingC2200 kN
Basic static load ratingC04150 kN
Fatigue load limitPu365 kN
Reference speednref1100 r/min
Limiting speednG1700 r/min
Mass≈m114 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter340.0 mm
Outside diameter520.0 mm
Width133.0 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 dimensions6 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of spacer sleeved amin. 360 mm
Diameter of spacer sleeved amax. 380 mm
Diameter of shaft abutmentd bmin. 389 mm
Diameter of housing abutmentD amax. 502 mm
Radius of filletr amax. 4 mm
Radius of filletr bmax. 4 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC2200 kN
Basic static load ratingC 04150 kN
Fatigue load limitP u365 kN
Reference speed1100 r/min
Limiting speed1700 r/min
Minimum load factork r0.15
Limiting valuee0.3
Calculation factorY0.4
Engineering — Dimensions7 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd340 mm
Outside diameterD520 mm
WidthB133 mm
Shoulder diameter of outer ringD 1≈ 465 mm
Raceway diameter of inner ringF385 mm
Chamfer dimensionr 1,2min. 5 mm
Permissible axial displacementsmax. 7 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight114.0 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating2200.0 kN
Basic static load rating4150.0 kN
Reference speed1100.0 r/min
Limiting speed1700.0 r/min
Properties18 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
Candidate for remanufacturingYes
Indicative carbon footprint for new product422.0 kg CO 2 e
Indicative carbon footprint for remanufactured product140.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NU 3068 MA
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