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SKF / Cylindrical roller thrust bearings

SKF K 81168 M

Cylindrical roller and cage thrust assembly technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
340 mm
Outside diameterD
420 mm
Dynamic load ratingC
900 kN
Static load ratingC0
4900 kN
Limiting speednG
800 r/min
Mass≈m
8.48 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 diameterd340 mm
Outside diameterD420 mm
HeightH25 mm
Basic dynamic load ratingC900 kN
Basic static load ratingC04900 kN
Fatigue load limitPu355 kN
Reference speednref380 r/min
Limiting speednG800 r/min
Mass≈m8.48 kg
CageMachined brass
Bearing materialBearing steel
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter340.0 mm
Outside diameter420.0 mm
Height25.0 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 — Associated products2 parameters
Engineering — Associated products
ParameterSymbolValue
Shaft washerWS 81168
Housing washerGS 81168
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC900 kN
Basic static load ratingC 04900 kN
Fatigue load limitP u355 kN
Reference speed380 r/min
Limiting speed800 r/min
Minimum axial load factorA1.9
Engineering — Dimensions5 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd340 mm
Outside diameterD420 mm
Diameter rollerD w25 mm
Raceway diameter (min.) roller and cage thrust assemblyE a354 mm
Raceway diameter (max.) roller and cage thrust assemblyE b414 mm
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight8.48 kg
UNSPSC code31171505
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating900.0 kN
Basic static load rating4900.0 kN
Reference speed380.0 r/min
Limiting speed800.0 r/min
Properties8 parameters
Properties
ParameterSymbolValue
Bearing partRoller and cage assembly
Axial load capabilitySingle-direction
Number of rows1
CageMachined brass
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
Indicative carbon footprint for new product31.4 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF K 81168 M
Document matching
Exact designation, assembly scope, revision and units must agree.

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