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SKF / Self-aligning ball bearings

SKF 1211 EKTN9/C3

Self-aligning ball bearing with tapered bore technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
55 mm
Outside diameterD
100 mm
WidthB
21 mm
Dynamic load ratingC
27.6 kN
Static load ratingC0
10.6 kN
Limiting speednG
9000 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 / constructionSelf-aligning ball bearings
Bore diameterd55 mm
Outside diameterD100 mm
WidthB21 mm
Basic dynamic load ratingC27.6 kN
Basic static load ratingC010.6 kN
Reference speednref14000 r/min
Limiting speednG9000 r/min
Mass≈m0.673 kg
Internal clearanceC3
SealingWithout
CageNon-metallic
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter55.0 mm
Outside diameter100.0 mm
Width21.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categorySelf-aligning ball bearings
Official taxonomy path/products/rolling-bearings/ball-bearings/self-aligning-ball-bearings
Structure group IDBJ1_001
Available from SKFYes
RemanufacturableNo
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.673 kg
eClass code23-05-08-06
UNSPSC code31171532
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating27.6 kN
Basic static load rating10.6 kN
Reference speed14000.0 r/min
Limiting speed9000.0 r/min
Properties13 parameters
Properties
ParameterSymbolValue
Retaining feature, inner ringNone
Locating feature, bearing outer ringWithout
Number of rows2
Bore typeTapered 1:12
CageNon-metallic
Radial internal clearanceC3
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product2.5 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 1211 EKTN9/C3
Document matching
Exact designation, assembly scope, revision and units must agree.

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