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SKF / Combined needle roller / thrust ball bearings

SKF NKX 40

Combined needle roller / thrust ball bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
40 mm
Outside diameterD
52 mm
WidthB
32 mm
Limiting speednG
7000 r/min
Mass≈m
0.206 kg
Bore diameter
40.0 mm

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 specifications8 parameters
Core specifications
ParameterSymbolValue
Variant / constructionCombined needle roller / thrust ball bearings
Bore diameterd40 mm
Outside diameterD52 mm
WidthB32 mm
Reference speednref5000 r/min
Limiting speednG7000 r/min
Mass≈m0.206 kg
Bearing materialBearing steel
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter40.0 mm
Outside diameter52.0 mm
Width32.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCombined needle roller / thrust ball bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/needle-roller-bearings/combined-needle-roller-bearings
Structure group IDBVN_002_003
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions6 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 55.7 mm
Radius of filletr amax. 0.6 mm
Radius of filletr bmax. 0.3 mm
Bore diameter of associated inner ringd i35 mm
Diameter of inner ring racewayF40 mm
Width of associated inner ringB i20 mm
Engineering — Associated products1 parameter
Engineering — Associated products
ParameterSymbolValue
Inner ringIR 35x40x20
Engineering — Calculation data9 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load rating, radialC26.4 kN
Basic static load rating, radialC 051 kN
Basic dynamic load rating, axialC27 kN
Basic static load rating, axialC 068 kN
Fatigue load limit, radialP u6.3 kN
Fatigue load limit, axialP u2.55 kN
Minimum axial load factorA0.02
Reference speed5000 r/min
Limiting speed7000 r/min
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Diameter under rollersF w40 mm
Outside diameterD52 mm
WidthC32 mm
Width of thrust partC 113 mm
Distance side face to lubrication holeC 210 mm
Bore diameter of thrust partd40 mm
Diameter of flangeD 160.1 mm
Chamfer dimensionr 1,2min. 0.6 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.206 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance2 parameters
Performance
ParameterSymbolValue
Reference speed5000.0 r/min
Limiting speed7000.0 r/min
Properties11 parameters
Properties
ParameterSymbolValue
Rolling bearing typeNeedle roller / thrust ball bearing
Bearing partRadial part without inner ring
Thrust partWith cage
Radial partWith cage
Rolling element (thrust part)Balls
Axial load capabilitySingle-direction
Tolerance classOther
Material, bearingBearing steel
CoatingWithout
Lubricant (thrust part)None
Indicative carbon footprint for new product0.76 kg CO 2 e

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
SKF NKX 40
Document matching
Exact designation, assembly scope, revision and units must agree.

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