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SKF / Needle roller bearings

SKF NKI 30/20

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
30 mm
Outside diameterD
45 mm
WidthB
20 mm
Dynamic load ratingC
28 kN
Static load ratingC0
45 kN
Limiting speednG
13000 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 diameterd30 mm
Outside diameterD45 mm
WidthB20 mm
Basic dynamic load ratingC28 kN
Basic static load ratingC045 kN
Fatigue load limitPu5.6 kN
Reference speednref11000 r/min
Limiting speednG13000 r/min
Mass≈m0.112 kg
Internal clearanceCN
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter30.0 mm
Outside diameter45.0 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 dimensions2 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of housing abutmentD amax. 43 mm
Fillet radiusr amax. 0.3 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC28 kN
Basic static load ratingC 045 kN
Fatigue load limitP u5.6 kN
Reference speed11000 r/min
Limiting speed13000 r/min
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd30 mm
Outside diameterD45 mm
WidthB20 mm
Raceway diameter outer ringE41 mm
Raceway diameter inner ringF35 mm
Chamfer dimension outer ringr 1,2min. 0.3 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.112 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating28.0 kN
Basic static load rating45.0 kN
Reference speed11000.0 r/min
Limiting speed13000.0 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 product0.41 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NKI 30/20
Document matching
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