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SKF / Angular contact ball bearings

SKF 3309 DNRCBM

Double row angular contact ball bearing with snap ring and split inner ring 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
61.8 kN
Static load ratingC0
52 kN
Limiting speednG
6300 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 / constructionAngular contact ball bearings
Bore diameterd45 mm
Outside diameterD100 mm
WidthB39.7 mm
Basic dynamic load ratingC61.8 kN
Basic static load ratingC052 kN
Fatigue load limitPu2.2 kN
Reference speednref7500 r/min
Limiting speednG6300 r/min
Mass≈m1.51 kg
SealingWithout
CageMachined brass
Bearing materialBearing steel
LubricantNone
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter45.0 mm
Outside diameter100.0 mm
Width39.7 mm
Contact angle40.0 °
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 dimensions2 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Abutment diameter shaftd amin. 54 mm
Fillet radiusr amax. 1.5 mm
Engineering — Calculation data11 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC61.8 kN
Basic static load ratingC 052 kN
Fatigue load limitP u2.2 kN
Reference speed7500 r/min
Limiting speed6300 r/min
Calculation factork r0.1
Limiting valuee1.1
Calculation factorX0.57
Calculation factorY 00.52
Calculation factorY 10.55
Calculation factorY 20.93
Engineering — Dimensions13 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd45 mm
Outside diameterD100 mm
WidthB39.7 mm
Shoulder diameter inner ring for two-piece inner ringd 1≈ 67.95 mm
Shoulder diameter outer ringD 1≈ 86.53 mm
Snap ring groove diameter at outer ringD 396.8 mm
Outside diameter snap ringD 4106.5 mm
Distance outer ring side face - snap ring grooveC3.28 mm
Width snap ring groove outer ringb2.7 mm
Width snap ringf2.46 mm
Snap ring groove bottom radiusr 0max. 0.6 mm
Chamfer dimension inner ring for two-piece inner ringr 1,2min. 1.5 mm
Distance pressure point(s)a79 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1.51 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating61.8 kN
Basic static load rating52.0 kN
Reference speed7500.0 r/min
Limiting speed6300.0 r/min
Properties15 parameters
Properties
ParameterSymbolValue
Contact typeNormal contact (two-point contact)
Number of rows2
Locating feature, bearing outer ringSnap ring (fitted)
Ring typeTwo-piece inner ring and one-piece outer ring
CageMachined brass
Arrangement of contact angle (double-row bearing)Back-to-back (O)
Matched arrangementNo
Universal matching bearingNo
Axial internal clearanceCB
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Indicative carbon footprint for new product5.6 kg CO 2 e

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
SKF 3309 DNRCBM
Document matching
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