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SKF / Deep groove ball bearings

SKF 6218-2Z

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

Technical data available
Bore diameterd
90 mm
Outside diameterD
160 mm
WidthB
30 mm
Dynamic load ratingC
101 kN
Static load ratingC0
73.5 kN
Limiting speednG
4300 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 diameterd90 mm
Outside diameterD160 mm
WidthB30 mm
Basic dynamic load ratingC101 kN
Basic static load ratingC073.5 kN
Fatigue load limitPu2.8 kN
Reference speednref8500 r/min
Limiting speednG4300 r/min
Mass≈m2.27 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 diameter90.0 mm
Outside diameter160.0 mm
Width30.0 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. 101 mm
Diameter of shaft abutmentd amax. 112 mm
Diameter of housing abutmentD amax. 149 mm
Radius of shaft or housing filletr amax. 2 mm
Engineering — Calculation data8 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC101 kN
Basic static load ratingC 073.5 kN
Fatigue load limitP u2.8 kN
Reference speed8500 r/min
Limiting speed4300 r/min
Minimum load factork r0.03
Calculation factorf 014.7
Engineering — Dimensions10 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd90 mm
Deviation limits of mid-range bore diametert Δdmp-0.015 to 0 mm
Outside diameterD160 mm
Deviation limits of mid-range outside diametert ΔDmp-0.018 to 0 mm
WidthB30 mm
Deviation limits of ring widtht ΔBs-0.1 to 0 mm
Shoulder diameterd 1≈ 112.5 mm
Recess diameterD 2≈ 142.6 mm
Chamfer dimensionr 1,2min. 2 mm
ISO tolerance class for dimensionsP6 and tighter width tolerance
Engineering — Tolerances of run-out3 parameters
Engineering — Tolerances of run-out
ParameterSymbolValue
Range of section height at inner ring of assembled bearingt Kia25 µm
Range of section height at outer ring of assembled bearingt Kea45 µm
ISO tolerance class for geometrical tolerancesNormal
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight2.27 kg
eClass code23-05-08-01
UNSPSC code31171504
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating101.0 kN
Basic static load rating73.5 kN
Reference speed8500.0 r/min
Limiting speed4300.0 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 product8.4 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 6218-2Z
Document matching
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