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SKF / Tapered roller bearings

SKF 31330 X

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

Technical data available
Bore diameterd
150 mm
Outside diameterD
320 mm
Dynamic load ratingC
832 kN
Static load ratingC0
1020 kN
Limiting speednG
2000 r/min
Mass≈m
27.2 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 specifications12 parameters
Core specifications
ParameterSymbolValue
Variant / constructionTapered roller bearings
Bore diameterd150 mm
Outside diameterD320 mm
Basic dynamic load ratingC832 kN
Basic static load ratingC01020 kN
Fatigue load limitPu100 kN
Reference speednref1400 r/min
Limiting speednG2000 r/min
Mass≈m27.2 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter150.0 mm
Outside diameter320.0 mm
Width, total82.0 mm
Width, inner ring75.0 mm
Width, outer ring50.0 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/single-row-tapered-roller-bearings
Structure group IDBT1_001_101
Available from SKFYes
RemanufacturableYes
Engineering — Abutment dimensions9 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amax. 181 mm
Diameter of shaft abutmentd bmin. 169.5 mm
Diameter of housing abutmentD amin. 251 mm
Diameter of housing abutmentD amax. 304 mm
Diameter of housing abutmentD bmin. 300 mm
Minimum width of space required in housing on large side faceC amin. 9 mm
Minimum width of space required in housing on small side faceC bmin. 32 mm
Radius of shaft filletr amax. 5 mm
Radius of housing filletr bmax. 4 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC832 kN
Basic static load ratingC 01020 kN
Fatigue load limitP u100 kN
Reference speed1400 r/min
Limiting speed2000 r/min
Limiting valuee0.83
Calculation factorY0.72
Calculation factorY 00.4
Engineering — Dimensions9 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd150 mm
Outside diameterD320 mm
Bearing width, totalT82 mm
Shoulder diameter of inner ringd 1≈ 234.13 mm
Width of inner ringB75 mm
Width of outer ringC50 mm
Chamfer dimension of inner ringr 1,2min. 5 mm
Chamfer dimension of outer ringr 3,4min. 4 mm
Distance side face to pressure pointa96.2 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Dimension series7GB
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight27.2 kg
eClass code23-05-09-10
UNSPSC code31171516
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating832.0 kN
Basic static load rating1020.0 kN
Reference speed1400.0 r/min
Limiting speed2000.0 r/min
Properties15 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageSheet metal
Arrangement of contact angle (double-row bearing)Not applicable
Matched arrangementNo
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Unit systemMetric
Candidate for remanufacturingYes
Indicative carbon footprint for new product101.0 kg CO 2 e
Indicative carbon footprint for remanufactured product33.5 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 31330 X
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