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SKF / Needle roller bearings

SKF NA 4911

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
55 mm
Outside diameterD
80 mm
WidthB
25 mm
Dynamic load ratingC
67 kN
Static load ratingC0
106 kN
Limiting speednG
7000 r/min

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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 diameterd55 mm
Outside diameterD80 mm
WidthB25 mm
Basic dynamic load ratingC67 kN
Basic static load ratingC0106 kN
Fatigue load limitPu13.4 kN
Reference speednref6300 r/min
Limiting speednG7000 r/min
Mass≈m0.408 kg
Internal clearanceCN
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter55.0 mm
Outside diameter80.0 mm
Width25.0 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. 60 mm
Diameter of housing abutmentD amax. 75 mm
Fillet radiusr amax. 1 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC67 kN
Basic static load ratingC 0106 kN
Fatigue load limitP u13.4 kN
Reference speed6300 r/min
Limiting speed7000 r/min
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd55 mm
Outside diameterD80 mm
WidthB25 mm
Raceway diameter inner ringF63 mm
Chamfer dimension outer ringr 1,2min. 1 mm
Permissible axial displacement from the normal position of one bearing ring relative to the othersmax. 1.5 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.408 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating67.0 kN
Basic static load rating106.0 kN
Reference speed6300.0 r/min
Limiting speed7000.0 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 product1.5 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NA 4911
Document matching
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