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SKF / Self-aligning ball bearings

SKF 1220 K/C3

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

Technical data available
Bore diameterd
100 mm
Outside diameterD
180 mm
WidthB
34 mm
Dynamic load ratingC
68.9 kN
Static load ratingC0
30 kN
Limiting speednG
4800 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 diameterd100 mm
Outside diameterD180 mm
WidthB34 mm
Basic dynamic load ratingC68.9 kN
Basic static load ratingC030 kN
Reference speednref7500 r/min
Limiting speednG4800 r/min
Mass≈m3.66 kg
Internal clearanceC3
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter100.0 mm
Outside diameter180.0 mm
Width34.0 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 weight3.66 kg
eClass code23-05-08-06
UNSPSC code31171532
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating68.9 kN
Basic static load rating30.0 kN
Reference speed7500.0 r/min
Limiting speed4800.0 r/min
Properties13 parameters
Properties
ParameterSymbolValue
Retaining feature, inner ringNone
Locating feature, bearing outer ringWithout
Number of rows2
Bore typeTapered 1:12
CageSheet metal
Radial internal clearanceC3
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product13.5 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 1220 K/C3
Document matching
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