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SKF / Needle roller bearings

SKF NA 49/32

Single row needle roller bearing with machined rings, with flanges technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
32 mm
Outside diameterD
52 mm
WidthB
20 mm
Dynamic load ratingC
35.5 kN
Static load ratingC0
51 kN
Limiting speednG
11000 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 / constructionNeedle roller bearings
Bore diameterd32 mm
Outside diameterD52 mm
WidthB20 mm
Basic dynamic load ratingC35.5 kN
Basic static load ratingC051 kN
Fatigue load limitPu6.4 kN
Reference speednref10000 r/min
Limiting speednG11000 r/min
Mass≈m0.158 kg
Internal clearanceCN
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter32.0 mm
Outside diameter52.0 mm
Width20.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryNeedle roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/needle-roller-bearings/needle-roller-bearings-with-machined-rings
Structure group IDBN1_003
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions3 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Smallest permissible abutment diameter shaft, bearings with flangesd amin. 36 mm
Diameter of housing abutmentD amax. 48 mm
Fillet radiusr amax. 0.6 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC35.5 kN
Basic static load ratingC 051 kN
Fatigue load limitP u6.4 kN
Reference speed10000 r/min
Limiting speed11000 r/min
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd32 mm
Outside diameterD52 mm
WidthB20 mm
Raceway diameter inner ringF40 mm
Chamfer dimension outer ringr 1,2min. 0.6 mm
Permissible axial displacement from the normal position of one bearing ring relative to the othersmax. 0.8 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.158 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating35.5 kN
Basic static load rating51.0 kN
Reference speed10000.0 r/min
Limiting speed11000.0 r/min
SKF performance classSKF Explorer
Properties14 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows1
Outer ring typeMachined (solid)
Aligning featureWithout
CageSheet metal
Number of flanges, outer ring2
Radial internal clearanceCN
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWith
Indicative carbon footprint for new product0.59 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NA 49/32
Document matching
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