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SKF / Deep groove ball bearings

SKF 618/900 MA

Deep groove ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
900 mm
Outside diameterD
1090 mm
WidthB
85 mm
Dynamic load ratingC
618 kN
Static load ratingC0
1600 kN
Limiting speednG
700 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 diameterd900 mm
Outside diameterD1090 mm
WidthB85 mm
Basic dynamic load ratingC618 kN
Basic static load ratingC01600 kN
Fatigue load limitPu21.6 kN
Reference speednref850 r/min
Limiting speednG700 r/min
Mass≈m168 kg
Precision classNormal
Internal clearanceCN
SealingWithout
CageMachined brass
Bearing materialBearing steel
LubricantNone
Precision classification2 parameters
Precision classification
ParameterSymbolValue
Radial ball bearing tolerance equivalentABEC 1Derived from ISO Normal; not a direct ABEC marking
Mapping basisISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value.
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter900.0 mm
Outside diameter1090.0 mm
Width85.0 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
RemanufacturableYes
Engineering — Abutment dimensions3 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of shaft abutmentd amin. 918 mm
Diameter of housing abutmentD amax. 1072 mm
Radius of shaft or housing filletr amax. 4 mm
Engineering — Calculation data7 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC618 kN
Basic static load ratingC 01600 kN
Fatigue load limitP u21.6 kN
Reference speed850 r/min
Limiting speed700 r/min
Minimum load factork r0.02
Calculation factorf 017.5
Engineering — Dimensions10 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd900 mm
Deviation limits of mid-range bore diametert Δdmp-0.1 to 0 mm
Outside diameterD1090 mm
Deviation limits of mid-range outside diametert ΔDmp-0.125 to 0 mm
WidthB85 mm
Deviation limits of ring widtht ΔBs-1 to 0 mm
Shoulder diameterd 1≈ 960.7 mm
Shoulder diameterD 1≈ 1028.6 mm
Chamfer dimensionr 1,2min. 5 mm
ISO tolerance class for dimensionsNormal
Engineering — Tolerances of run-out3 parameters
Engineering — Tolerances of run-out
ParameterSymbolValue
Range of section height at inner ring of assembled bearingt Kia90 µm
Range of section height at outer ring of assembled bearingt Kea160 µm
ISO tolerance class for geometrical tolerancesNormal
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight168.0 kg
eClass code23-05-08-01
UNSPSC code31171504
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating618.0 kN
Basic static load rating1600.0 kN
Reference speed850.0 r/min
Limiting speed700.0 r/min
Properties15 parameters
Properties
ParameterSymbolValue
Filling slotsWithout
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageMachined brass
Matched arrangementNo
Radial internal clearanceCN
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Candidate for remanufacturingYes
Indicative carbon footprint for new product620.0 kg CO 2 e
Indicative carbon footprint for remanufactured product206.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF 618/900 MA
Document matching
Exact designation, assembly scope, revision and units must agree.

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