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SKF / Needle roller bearings

SKF NKI 28/30

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
28 mm
Outside diameterD
42 mm
WidthB
30 mm
Dynamic load ratingC
39 kN
Static load ratingC0
65.5 kN
Limiting speednG
14000 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 diameterd28 mm
Outside diameterD42 mm
WidthB30 mm
Basic dynamic load ratingC39 kN
Basic static load ratingC065.5 kN
Fatigue load limitPu8.3 kN
Reference speednref12000 r/min
Limiting speednG14000 r/min
Mass≈m0.146 kg
Internal clearanceCN
SealingWithout
CageSheet metal
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter28.0 mm
Outside diameter42.0 mm
Width30.0 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. 30 mm
Diameter of housing abutmentD amax. 40 mm
Fillet radiusr amax. 0.3 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC39 kN
Basic static load ratingC 065.5 kN
Fatigue load limitP u8.3 kN
Reference speed12000 r/min
Limiting speed14000 r/min
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd28 mm
Outside diameterD42 mm
WidthB30 mm
Raceway diameter inner ringF32 mm
Chamfer dimension outer ringr 1,2min. 0.3 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 weight0.146 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating39.0 kN
Basic static load rating65.5 kN
Reference speed12000.0 r/min
Limiting speed14000.0 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 product0.54 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NKI 28/30
Document matching
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