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SKF / Angular contact ball bearings

SKF 3308 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
40 mm
Outside diameterD
90 mm
WidthB
36.5 mm
Dynamic load ratingC
49.4 kN
Static load ratingC0
41.5 kN
Limiting speednG
7000 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 diameterd40 mm
Outside diameterD90 mm
WidthB36.5 mm
Basic dynamic load ratingC49.4 kN
Basic static load ratingC041.5 kN
Fatigue load limitPu1.76 kN
Reference speednref8000 r/min
Limiting speednG7000 r/min
Mass≈m1.13 kg
SealingWithout
CageMachined brass
Bearing materialBearing steel
LubricantNone
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Bore diameter40.0 mm
Outside diameter90.0 mm
Width36.5 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. 49 mm
Fillet radiusr amax. 1.5 mm
Engineering — Calculation data11 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC49.4 kN
Basic static load ratingC 041.5 kN
Fatigue load limitP u1.76 kN
Reference speed8000 r/min
Limiting speed7000 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 diameterd40 mm
Outside diameterD90 mm
WidthB36.5 mm
Shoulder diameter inner ring for two-piece inner ringd 1≈ 61.15 mm
Shoulder diameter outer ringD 1≈ 77.47 mm
Snap ring groove diameter at outer ringD 386.8 mm
Outside diameter snap ringD 496.5 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)a71 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight1.13 kg
eClass code23-05-08-03
UNSPSC code31171531
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating49.4 kN
Basic static load rating41.5 kN
Reference speed8000.0 r/min
Limiting speed7000.0 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 product4.2 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 3308 DNRCBM
Document matching
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