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SKF / Carb toroidal roller bearings

SKF C 31/750 KMB/C083W4

Carb toroidal roller bearing with tapered bore (1:12) technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
750 mm
Outside diameterD
1220 mm
WidthB
365 mm
Dynamic load ratingC
16000 kN
Static load ratingC0
30500 kN
Limiting speednG
450 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 / constructionCARB toroidal roller bearings
Bore diameterd750 mm
Outside diameterD1220 mm
WidthB365 mm
Basic dynamic load ratingC16000 kN
Basic static load ratingC030500 kN
Fatigue load limitPu1800 kN
Reference speednref320 r/min
Limiting speednG450 r/min
Mass≈m1750 kg
Internal clearanceC3
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter750.0 mm
Outside diameter1220.0 mm
Width365.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCARB toroidal roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/carb-toroidal-roller-bearings
Structure group IDBSC_001
Available from SKFYes
RemanufacturableYes
Engineering — Abutment dimensions6 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 769 mm
Diameter of shaft abutmentd amax. 883 mm
Diameter of housing abutmentD amin. 1025 mm
Abutment diameter housingD amax. 1180 mm
Minimum width of space required in housingC amin. 9.3 mm
Radius of filletr amax. 8 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC16000 kN
Basic static load ratingC 030500 kN
Fatigue load limitP u1800 kN
Reference speed320 r/min
Limiting speed450 r/min
Misalignment factork 10
Internal clearance factork 20.09
Engineering — Dimensions7 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd750 mm
Outside diameterD1220 mm
WidthB365 mm
Shoulder diameter of inner ringd 2≈ 884 mm
Shoulder or recess diameter of outer ringD 1≈ 1077 mm
Permissible axial displacements 1max. 33 mm
Chamfer dimensionr 1,2min. 9.5 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeTapered 1:12
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1750.0 kg
eClass code23-05-09-13
UNSPSC code31171505
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating16000.0 kN
Basic static load rating30500.0 kN
Reference speed320.0 r/min
Limiting speed450.0 r/min
SKF performance classSKF Explorer
Properties12 parameters
Properties
ParameterSymbolValue
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeTapered 1:12
CageMachined brass
Radial internal clearanceC3
Tolerance classSpecial [C08]
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product6475.0 kg CO 2 e
Indicative carbon footprint for remanufactured product2153.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF C 31/750 KMB/C083W4
Document matching
Exact designation, assembly scope, revision and units must agree.

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