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SKF / Thin section bearings

SKF KDN.KD250AR0

Reali-slim thin section angular contact ball bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
635 mm
Outside diameterD
660.4 mm
WidthB
12.7 mm
Dynamic load ratingC
17.9 kN
Static load ratingC0
82.7 kN
Limiting speednG
480 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 specifications12 parameters
Core specifications
ParameterSymbolValue
Variant / constructionThin section bearings
Bore diameterd635 mm
Outside diameterD660.4 mm
WidthB12.7 mm
Basic dynamic load ratingC17.9 kN
Basic static load ratingC082.7 kN
Limiting speednG480 r/min
Mass≈m2.06 kg
SealingWithout
CageBrass or non-metallic composite
Bearing materialBearing steel
LubricantNone
Dimensions5 parameters
Dimensions
ParameterSymbolValue
Bore diameter635.0 mm
Outside diameter660.4 mm
Width12.7 mm
Radial cross section12.7 mm
Contact angle30.0 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryThin section bearings
Official taxonomy path/products/thin-section-bearings/reali-slim-thin-section-bearings
Structure group IDBB1_001_BA1_001_BAQ_001
Available from SKFYes
RemanufacturableNo
Engineering — Calculation data3 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC17.9 kN
Basic static load ratingC 082.7 kN
Limiting speed480 r/min
Engineering — Dimensions9 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd635 mm
Outside diameterD660.4 mm
Radial cross sectionH12.7 mm
WidthB12.7 mm
Shoulder diameter inner ringd 1≈ 644.398 mm
Shoulder diameter outer ringD 1≈ 651.002 mm
Shoulder diameter outer ringD 4≈ 652.475 mm
Ball diameter6.35 mm
Maximum radius of shaft or housing fillet1.524 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight2.06 kg
eClass code23-05-08-07
UNSPSC code31171531
Performance3 parameters
Performance
ParameterSymbolValue
Limiting speed480.0 r/min
Basic dynamic load rating17.9 kN
Basic static load rating82.7 kN
Properties12 parameters
Properties
ParameterSymbolValue
Rolling bearing typeAngular contact ball bearing (type A)
Contact typeNormal contact (two-point contact)
Number of rows1
CageBrass or non-metallic composite
Matched arrangementNo
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Unit systemInch
Indicative carbon footprint for new product7.6 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 KDN.KD250AR0
Document matching
Exact designation, assembly scope, revision and units must agree.

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