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SKF / Combined needle roller / cylindrical roller thrust bearings

SKF NKXR 50 Z

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
62 mm
WidthB
35 mm
Limiting speednG
4300 r/min
Mass≈m
0.286 kg
Bore diameter
50.0 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 / cylindrical roller thrust bearings
Bore diameterd50 mm
Outside diameterD62 mm
WidthB35 mm
Reference speednref2200 r/min
Limiting speednG4300 r/min
Mass≈m0.286 kg
Bearing materialBearing steel
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter50.0 mm
Outside diameter62.0 mm
Width35.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCombined needle roller / cylindrical roller thrust 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. 65.5 mm
Radius of filletr amax. 0.6 mm
Radius of filletr bmax. 0.6 mm
Bore diameter of associated inner ringd i45 mm
Diameter of inner ring racewayF50 mm
Width of associated inner ringB i25 mm
Engineering — Associated products1 parameter
Engineering — Associated products
ParameterSymbolValue
Inner ringIR 45x50x25
Engineering — Calculation data9 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load rating, radialC38 kN
Basic static load rating, radialC 078 kN
Basic dynamic load rating, axialC47.5 kN
Basic static load rating, axialC 0166 kN
Fatigue load limit, radialP u9.65 kN
Fatigue load limit, axialP u16.6 kN
Minimum axial load factorA0.002
Reference speed2200 r/min
Limiting speed4300 r/min
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Diameter under rollersF w50 mm
Outside diameterD62 mm
WidthC35 mm
Width of thrust partC 114 mm
Distance side face to lubrication holeC 210 mm
Bore diameter of thrust partd50 mm
Diameter of stamped steel coverD 271.5 mm
Chamfer dimensionr 1,2min. 0.6 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.286 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance2 parameters
Performance
ParameterSymbolValue
Reference speed2200.0 r/min
Limiting speed4300.0 r/min
Properties12 parameters
Properties
ParameterSymbolValue
Rolling bearing typeNeedle roller / cylindrical roller thrust bearing
Bearing partRadial part without inner ring
Thrust partWith cage
Radial partWith cage
Axial load capabilitySingle-direction
Rolling element (thrust part)Rollers
Tolerance classOther
Material, bearingBearing steel
CoatingWithout
Special featureThrust part with stamped steel cover without lubrication holes
Lubricant (thrust part)Grease
Indicative carbon footprint for new product1.1 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 NKXR 50 Z
Document matching
Exact designation, assembly scope, revision and units must agree.

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