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SKF / Tapered roller bearings

SKF 31330 X/DFC290

Matched tapered roller bearings arranged face-to-face technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
150 mm
Outside diameterD
320 mm
WidthB
164 mm
Dynamic load ratingC
1427 kN
Static load ratingC0
2040 kN
Limiting speednG
2000 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionTapered roller bearings
Bore diameterd150 mm
Outside diameterD320 mm
WidthB164 mm
Basic dynamic load ratingC1427 kN
Basic static load ratingC02040 kN
Fatigue load limitPu200 kN
Reference speednref1100 r/min
Limiting speednG2000 r/min
Mass≈m58.6 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter150.0 mm
Outside diameter320.0 mm
Width, total164.0 mm
Width, inner ring150.0 mm
Width, outer ring164.0 mm
Contact angle28.8 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryTapered roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/tapered-roller-bearings/matched-tapered-roller-bearings
Structure group IDBT2_010
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions6 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amax. 181 mm
Diameter of housing abutmentD amin. 251 mm
Diameter of housing abutmentD amax. 304 mm
Minimum width of space required in housing on large side faceC amin. 9 mm
Radius of filletr amax. 5 mm
Radius of filletr cmax. 1.5 mm
Engineering — Calculation data9 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1427 kN
Basic static load ratingC 02040 kN
Fatigue load limitP u200 kN
Reference speed1100 r/min
Limiting speed2000 r/min
Limiting valuee0.83
Calculation factorY 10.81
Calculation factorY 21.2
Calculation factorY 00.8
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd150 mm
Outside diameterD320 mm
Total widthT164 mm
Width of inner rings2B150 mm
Width of lubrication grooveb20 mm
Diameter of lubrication holeK15 mm
Chamfer dimensionr 3,4min. 4 mm
Chamfer dimensionr 5min. 1.5 mm
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight58.6 kg
eClass code23-05-09-10
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1427.0 kN
Basic static load rating2040.0 kN
Reference speed1100.0 r/min
Limiting speed2000.0 r/min
Properties12 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows2
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageSheet metal
Matched arrangementFace-to-face (X)
Number of bearings in matched set2
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWith
Indicative carbon footprint for new product217.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 31330 X/DFC290
Document matching
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