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SKF / Cylindrical roller bearings

SKF NUP 309 ECNP

Single row cylindrical roller bearing, nup design, with snap ring groove technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
45 mm
Outside diameterD
100 mm
WidthB
25 mm
Dynamic load ratingC
112 kN
Static load ratingC0
100 kN
Limiting speednG
8500 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 specifications14 parameters
Core specifications
ParameterSymbolValue
Variant / constructionCylindrical roller bearings
Bore diameterd45 mm
Outside diameterD100 mm
WidthB25 mm
Basic dynamic load ratingC112 kN
Basic static load ratingC0100 kN
Fatigue load limitPu12.9 kN
Reference speednref7500 r/min
Limiting speednG8500 r/min
Mass≈m0.904 kg
Internal clearanceCN
SealingWithout
CageNon-metallic
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter45.0 mm
Outside diameter100.0 mm
Width25.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryCylindrical roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings
Structure group IDBC1_001_101
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions4 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of spacer sleeved amin. 54 mm
Diameter of shaft abutmentd bmin. 67 mm
Diameter of housing abutmentD amax. 91.4 mm
Radius of filletr amax. 1.5 mm
Engineering — Calculation data9 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC112 kN
Basic static load ratingC 0100 kN
Fatigue load limitP u12.9 kN
Reference speed7500 r/min
Limiting speed8500 r/min
Minimum load factork r0.15
Limiting valuee0.2
Calculation factorY0.6
Engineering — Dimensions11 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd45 mm
Outside diameterD100 mm
WidthB25 mm
Shoulder diameter of inner ringd 1≈ 64.4 mm
Shoulder diameter of outer ringD 1≈ 83.2 mm
Diameter of snap ring grooveD 396.8 mm
Raceway diameter of inner ringF58.5 mm
Distance from outer ring side face to snap ring grooveC 23.28 mm
Width of snap ring grooveb2.7 mm
Chamfer dimensionr 1,2min. 1.5 mm
Chamfer dimension of loose flange ringr 3,4min. 1.5 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.904 kg
eClass code23-05-09-01
UNSPSC code31171505
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating112.0 kN
Basic static load rating100.0 kN
Reference speed7500.0 r/min
Limiting speed8500.0 r/min
SKF performance classSKF Explorer
Properties16 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Axial displacement capabilityNone
Number of rows1
Locating feature, bearing outer ringSnap ring groove
Bore typeCylindrical
CageNon-metallic
Number of flanges, outer ring2
Number of flanges, inner ring1
Loose flangeInner ring loose flange
Radial internal clearanceCN
Tolerance classNormal
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product3.3 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF NUP 309 ECNP
Document matching
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