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SKF / Angular contact ball bearings

SKF 3309 A-2RS1

Double row angular contact ball bearing with seals or shields technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
45 mm
Outside diameterD
100 mm
WidthB
39.7 mm
Dynamic load ratingC
75 kN
Static load ratingC0
53 kN
Limiting speednG
4800 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionAngular contact ball bearings
Bore diameterd45 mm
Outside diameterD100 mm
WidthB39.7 mm
Basic dynamic load ratingC75 kN
Basic static load ratingC053 kN
Fatigue load limitPu2.24 kN
Limiting speednG4800 r/min
Mass≈m1.29 kg
SealingSeal on both sides
CageSheet metal
Bearing materialBearing steel
LubricantGrease
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter45.0 mm
Outside diameter100.0 mm
Width39.7 mm
Contact angle30.0 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryAngular contact ball bearings
Official taxonomy path/products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-ball-bearings
Structure group IDBA2_001
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions4 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 54 mm
Abutment diameter shaftd amax. 91 mm
Abutment diameter housingD amax. 91 mm
Fillet radiusr amax. 1.5 mm
Engineering — Calculation data11 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC75 kN
Basic static load ratingC 053 kN
Fatigue load limitP u2.24 kN
Limiting speed4800 r/min
Calculation factork r0.07
Limiting valuee0.8
Calculation factorX0.63
Calculation factorY 00.66
Calculation factorY 10.78
Calculation factorY 21.2
Engineering — Dimensions7 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd45 mm
Outside diameterD100 mm
WidthB39.7 mm
Recess diameter inner ring shoulderd 2≈ 55.6 mm
Recess diameter outer ring shoulderD 2≈ 89.95 mm
Chamfer dimension inner ringr 1,2min. 1.5 mm
Distance pressure point(s)a58 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1.29 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating75.0 kN
Basic static load rating53.0 kN
Limiting speed4800.0 r/min
SKF performance classSKF Explorer
Properties16 parameters
Properties
ParameterSymbolValue
Contact typeNormal contact (two-point contact)
Number of rows2
Locating feature, bearing outer ringWithout
Ring typeOne-piece inner and outer rings
CageSheet metal
Arrangement of contact angle (double-row bearing)Back-to-back (O)
Matched arrangementNo
Universal matching bearingNo
Axial internal clearanceCN
Material, bearingBearing steel
CoatingWithout
SealingSeal on both sides
Sealing typeContact
LubricantGrease
Relubrication featureWithout
Indicative carbon footprint for new product4.8 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 3309 A-2RS1
Document matching
Exact designation, assembly scope, revision and units must agree.

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