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SKF / Super-precision cylindrical roller bearings

SKF NN 3076 K/SPW33

Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
380 mm
Outside diameterD
560 mm
WidthB
135 mm
Dynamic load ratingC
1680 kN
Static load ratingC0
3450 kN
Mass≈m
112 kg

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 specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSuper-precision cylindrical roller bearings
Bore diameterd380 mm
Outside diameterD560 mm
WidthB135 mm
Basic dynamic load ratingC1680 kN
Basic static load ratingC03450 kN
Fatigue load limitPu305 kN
Mass≈m112 kg
Internal clearanceC1
SealingWithout
CageMachined metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter380.0 mm
Outside diameter560.0 mm
Width135.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categorySuper-precision cylindrical roller bearings
Official taxonomy path/products/super-precision-bearings/cylindrical-roller-bearings
Structure group IDBC2_010
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions4 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 398 mm
Abutment diameter housingD amin. 517 mm
Abutment diameter housingD amax. 542 mm
Fillet radiusr amax. 4 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1680 kN
Basic static load ratingC 03450 kN
Fatigue load limitP u305 kN
Attainable speed for grease lubrication1300 r/min
Attainable speed for oil-air lubrication1400 r/min
Static radial stiffness (guideline value)7780 N/µm
Engineering — Dimensions10 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd380 mm
Outside diameterD560 mm
WidthB135 mm
Shoulder diameter inner ring (NN design)d 1448 mm
Raceway diameter outer ring (NN design)E513 mm
Width annular lubrication groove at outer ringb16.7 mm
Diameter lubrication hole (outer ring)K9 mm
Chamfer dimension outer ringr 1,2min. 5 mm
Chamfer dimension inner ring (bearing with tapered bore)r 3,4min. 8.2 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other (all)smax. 11.9 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeTapered 1:12
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight112.0 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1680.0 kN
Basic static load rating3450.0 kN
Attainable speed for grease lubrication1300.0 r/min
Attainable speed for oil-air lubrication1400.0 r/min
Properties16 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows2
Bore typeTapered 1:12
CageMachined metal
DesignNN
Number of flanges, outer ring0
Number of flanges, inner ring3
Loose flangeNone
Radial internal clearanceC1
Tolerance classClass SP (SP)
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureAnnular groove and lubrication holes
Indicative carbon footprint for new product414.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NN 3076 K/SPW33
Document matching
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