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SKF / Self-aligning ball bearings

SKF 1218 K

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

Technical data available
Bore diameterd
90 mm
Outside diameterD
160 mm
WidthB
30 mm
Dynamic load ratingC
57.2 kN
Static load ratingC0
23.6 kN
Limiting speednG
5300 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 specifications15 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSelf-aligning ball bearings
Bore diameterd90 mm
Outside diameterD160 mm
WidthB30 mm
Basic dynamic load ratingC57.2 kN
Basic static load ratingC023.6 kN
Fatigue load limitPu1.08 kN
Reference speednref8500 r/min
Limiting speednG5300 r/min
Mass≈m2.48 kg
Internal clearanceCN
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter90.0 mm
Outside diameter160.0 mm
Width30.0 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
Engineering — Abutment dimensions2 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter housingD amax. 149 mm
Fillet radiusr amax. 2 mm
Engineering — Calculation data11 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC57.2 kN
Basic static load ratingC 023.6 kN
Fatigue load limitP u1.08 kN
Reference speed8500 r/min
Limiting speed5300 r/min
Permissible angular misalignmentα2.5 °
Calculation factork r0.04
Limiting valuee0.17
Calculation factorY 04
Calculation factorY 13.7
Calculation factorY 25.7
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd90 mm
Outside diameterD160 mm
WidthB30 mm
Shoulder diameter inner ringd 1≈ 112.5 mm
Shoulder diameter outer ringD 1≈ 138.7 mm
Chamfer dimensionr 1,2min. 2 mm
Engineering — Engineering specifications1 parameter
Engineering — Engineering specifications
ParameterSymbolValue
Bore typeTapered 1:12
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight2.48 kg
eClass code23-05-08-06
UNSPSC code31171532
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating57.2 kN
Basic static load rating23.6 kN
Reference speed8500.0 r/min
Limiting speed5300.0 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 clearanceCN
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product9.2 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 1218 K
Document matching
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