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SKF / Deep groove ball bearings

SKF 308-2Z

Deep groove ball bearing with filling slots and integral sealing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
40 mm
Outside diameterD
90 mm
WidthB
23 mm
Dynamic load ratingC
45.7 kN
Static load ratingC0
36 kN
Limiting speednG
6800 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 / constructionDeep groove ball bearings
Bore diameterd40 mm
Outside diameterD90 mm
WidthB23 mm
Basic dynamic load ratingC45.7 kN
Basic static load ratingC036 kN
Fatigue load limitPu1.53 kN
Reference speednref14000 r/min
Limiting speednG6800 r/min
Mass≈m0.7 kg
Internal clearanceCN
SealingShield on both sides
CageSheet metal
Bearing materialBearing steel
LubricantGrease
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter40.0 mm
Outside diameter90.0 mm
Width23.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryDeep groove ball bearings
Official taxonomy path/products/rolling-bearings/ball-bearings/deep-groove-ball-bearings
Structure group IDBB1_001_101
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions4 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 49 mm
Diameter of shaft abutmentd amax. 56 mm
Diameter of housing abutmentD amax. 81 mm
Radius of shaft or housing filletr amax. 1.5 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC45.7 kN
Basic static load ratingC 036 kN
Fatigue load limitP u1.53 kN
Reference speed14000 r/min
Limiting speed6800 r/min
Minimum load factork r0.05
Engineering — Dimensions6 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd40 mm
Outside diameterD90 mm
WidthB23 mm
Shoulder diameterd 1≈ 56.11 mm
Recess diameterD 2≈ 77.7 mm
Chamfer dimensionr 1,2min. 1.5 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.7 kg
eClass code23-05-08-01
UNSPSC code31171504
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating45.7 kN
Basic static load rating36.0 kN
Reference speed14000.0 r/min
Limiting speed6800.0 r/min
Properties14 parameters
Properties
ParameterSymbolValue
Filling slotsWith
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageSheet metal
Matched arrangementNo
Radial internal clearanceCN
Material, bearingBearing steel
CoatingWithout
SealingShield on both sides
Sealing typeNon-contact
LubricantGrease
Relubrication featureWithout
Indicative carbon footprint for new product2.6 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 308-2Z
Document matching
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