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SKF / Deep groove ball bearings

SKF 6303-2Z

Deep groove ball bearing with seals or shields technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
17 mm
Outside diameterD
47 mm
WidthB
14 mm
Dynamic load ratingC
14.3 kN
Static load ratingC0
6.55 kN
Limiting speednG
17000 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 specifications16 parameters
Core specifications
ParameterSymbolValue
Variant / constructionDeep groove ball bearings
Bore diameterd17 mm
Outside diameterD47 mm
WidthB14 mm
Basic dynamic load ratingC14.3 kN
Basic static load ratingC06.55 kN
Fatigue load limitPu0.275 kN
Reference speednref34000 r/min
Limiting speednG17000 r/min
Mass≈m0.115 kg
Precision classP6 and tighter width tolerance
Internal clearanceCN
SealingShield on both sides
CageSheet metal
Bearing materialBearing steel
LubricantGrease
Precision classification2 parameters
Precision classification
ParameterSymbolValue
Radial ball bearing tolerance equivalentABEC 3Derived from ISO P6; not a direct ABEC marking
Mapping basisISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value.
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter17.0 mm
Outside diameter47.0 mm
Width14.0 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. 22.6 mm
Diameter of shaft abutmentd amax. 26.4 mm
Diameter of housing abutmentD amax. 41.4 mm
Radius of shaft or housing filletr amax. 1 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC14.3 kN
Basic static load ratingC 06.55 kN
Fatigue load limitP u0.275 kN
Reference speed34000 r/min
Limiting speed17000 r/min
Minimum load factork r0.03
Calculation factorf 012
Engineering — Dimensions10 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd17 mm
Deviation limits of mid-range bore diametert Δdmp-0.007 to 0 mm
Outside diameterD47 mm
Deviation limits of mid-range outside diametert ΔDmp-0.009 to 0 mm
WidthB14 mm
Deviation limits of ring widtht ΔBs-0.06 to 0 mm
Shoulder diameterd 1≈ 26.52 mm
Recess diameterD 2≈ 39.58 mm
Chamfer dimensionr 1,2min. 1 mm
ISO tolerance class for dimensionsP6 and tighter width tolerance
Engineering — Tolerances of run-out7 parameters
Engineering — Tolerances of run-out
ParameterSymbolValue
Range of section height at inner ring of assembled bearingt Kia4 µm
Maximum run-out of inner ring side face to the boret Sd7 µm
Maximum axial run-out of inner ring of assembled bearingt Sia7 µm
Range of section height at outer ring of assembled bearingt Kea7 µm
Perpendicularity of outer ring outside surfacet SD4 µm
Maximum axial run-out of outer ring of assembled bearingt Sea8 µm
ISO tolerance class for geometrical tolerancesP5
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.115 kg
eClass code23-05-08-01
UNSPSC code31171504
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating14.3 kN
Basic static load rating6.55 kN
Reference speed34000.0 r/min
Limiting speed17000.0 r/min
SKF performance classSKF Explorer
Properties14 parameters
Properties
ParameterSymbolValue
Filling slotsWithout
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 product0.43 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 6303-2Z
Document matching
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