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SKF / Carb toroidal roller bearings

SKF C 3984 KM

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

Technical data available
Bore diameterd
420 mm
Outside diameterD
560 mm
WidthB
106 mm
Dynamic load ratingC
2160 kN
Static load ratingC0
4250 kN
Limiting speednG
1200 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 diameterd420 mm
Outside diameterD560 mm
WidthB106 mm
Basic dynamic load ratingC2160 kN
Basic static load ratingC04250 kN
Fatigue load limitPu310 kN
Reference speednref850 r/min
Limiting speednG1200 r/min
Mass≈m69.6 kg
Internal clearanceCN
SealingWithout
CageMachined brass
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter420.0 mm
Outside diameter560.0 mm
Width106.0 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 dimensions4 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of housing abutmentD amin. 510 mm
Abutment diameter housingD amax. 545 mm
Minimum width of space required in housingC amin. 1.8 mm
Radius of filletr amax. 3 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC2160 kN
Basic static load ratingC 04250 kN
Fatigue load limitP u310 kN
Reference speed850 r/min
Limiting speed1200 r/min
Misalignment factork 10.13
Internal clearance factork 20.1
Engineering — Dimensions7 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd420 mm
Outside diameterD560 mm
WidthB106 mm
Shoulder diameter of inner ringd 2≈ 461 mm
Shoulder or recess diameter of outer ringD 1≈ 523 mm
Permissible axial displacements 1max. 21.3 mm
Chamfer dimensionr 1,2min. 4 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeTapered 1:12
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight69.6 kg
eClass code23-05-09-13
UNSPSC code31171505
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating2160.0 kN
Basic static load rating4250.0 kN
Reference speed850.0 r/min
Limiting speed1200.0 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 clearanceCN
Tolerance classNormal
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product258.0 kg CO 2 e
Indicative carbon footprint for remanufactured product85.6 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF C 3984 KM
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