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SKF / Cylindrical roller thrust bearings

SKF 81144 M

Single row cylindrical roller thrust bearing, single direction technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
220 mm
Outside diameterD
270 mm
Dynamic load ratingC
335 kN
Static load ratingC0
1700 kN
Limiting speednG
1300 r/min
Mass≈m
4.7 kg

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 specifications12 parameters
Core specifications
ParameterSymbolValue
Variant / constructionCylindrical roller thrust bearings
Bore diameterd220 mm
Outside diameterD270 mm
HeightH37 mm
Basic dynamic load ratingC335 kN
Basic static load ratingC01700 kN
Fatigue load limitPu137 kN
Reference speednref670 r/min
Limiting speednG1300 r/min
Mass≈m4.7 kg
CageMachined brass
Bearing materialBearing steel
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter220.0 mm
Outside diameter270.0 mm
Height37.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCylindrical roller thrust bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/cylindrical-roller-thrust-bearings
Structure group IDBGS_001_002_003
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions3 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 263 mm
Abutment diameter housingD amax. 226 mm
Fillet radiusr amax. 1.1 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC335 kN
Basic static load ratingC 01700 kN
Fatigue load limitP u137 kN
Reference speed670 r/min
Limiting speed1300 r/min
Minimum axial load factorA0.23
Engineering — Dimensions7 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd220 mm
Outside diameterD270 mm
HeightH37 mm
Outside diameter shaft washerd 1267 mm
Bore diameter housing washerD 1223 mm
Height shaft washerB11 mm
Chamfer dimension housing washerr 1,2min. 1.1 mm
Engineering — Included products3 parameters
Engineering — Included products
ParameterSymbolValue
Roller and cage thrust assemblyK 81144 M
Shaft washerWS 81144
Housing washerGS 81144
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight4.7 kg
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating335.0 kN
Basic static load rating1700.0 kN
Reference speed670.0 r/min
Limiting speed1300.0 r/min
Properties8 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial load capabilitySingle-direction
Number of rows1
CageMachined brass
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
Indicative carbon footprint for new product17.4 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 81144 M
Document matching
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