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FAG / Spherical roller bearings

FAG 230/630-B-K-MB

Spherical roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
630 mm
Outside diameterD
920 mm
WidthB
212 mm
Dynamic load ratingC
6300 kN
Static load ratingC0
13800 kN
Limiting speednG
680 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
Series230/630
Bore diameterd630 mm
Outside diameterD920 mm
WidthB212 mm
Basic dynamic load ratingC6300 kN
Basic static load ratingC013800 kN
Fatigue load limitPu910 kN
Reference speednref380 r/min
Limiting speednG680 r/min
Mass≈m473.5 kg
Internal clearanceCN (Group N) — Normal internal clearance
CageMB — Solid brass cage
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax200 °C
Product characteristics5 parameters
Product characteristics
ParameterSymbolValue
DesignBWith fixed central rib
Bore typeKTapered, taper 1:12
CageMBSolid brass cage
Radial internal clearanceCN (Group N)Normal internal clearance
Relubrication featureStandard
Main Dimensions & Performance Data9 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd630 mm24.803 in
Outside diameterD920 mm36.22 in
WidthB212 mm8.346 in
Basic dynamic load rating, radialCr6,300,000 N1,416,366.906 lbf
Basic static load rating, radialC0r13,800,000 N3,102,517.986 lbf
Fatigue load limit, radialCur910,000 N204,586.331 lbf
Limiting speednG680 1/min
Reference speednϑr380 1/min
Mass≈m473.5 kg1,043.888 lbs
Mounting dimensions6 parameters
Mounting dimensions
ParameterSymbolValue
Minimum diameter shaft shoulderda min658 mm25.906 in
Maximum diameter of housing shoulderDa max892 mm35.118 in
Maximum recess radiusra max6 mm0.236 in
Maximum diameter of shaft shoulderda max696 mm27.402 in
Minimum cavity diameter of the sleevedb min653 mm25.709 in
Minimum cavity width of the sleeveBa min20 mm0.787 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimensionrmin7.5 mm0.295 in
Bore diameter outer ringD1834.3 mm32.846 in
Diameter lubrication holeds12.5 mm0.492 in
Width of lubricating groovens23.5 mm0.925 in
Temperature range2 parameters
Temperature range
ParameterSymbolValue
Operating temperature min.Tmin-30 °C-22 °F
Operating temperature max.Tmax200 °C392 °F
Calculation factors4 parameters
Calculation factors
ParameterSymbolValue
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye0.22
Dynamic axial load factorY13.01
Dynamic axial load factorY24.48
Static axial load factorY02.94
Capabilities & suitability9 parameters
Capabilities & suitability
ParameterSymbolValue
Radial load capacityYes
Axial load capacity in one directionYes
Axial load capacity in both directionsYes
Suitable for grease lubricationYes
Suitable for oil lubricationYes
Unsealed designYes
LargebearingYes
StaticangularerrorandmisalignmentYes
DynamicangularerrorandmisalignmentYes
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code389587
BrandFAG
Base Type230/630
Old Designation["230/630BK.MB","230/630K.MB"]
X Life Markingn.r.
SAP material number0190242820000
Base product2305091131
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionSpherical roller bearing 230..-B-K-MB, symmetric 3 ribs
Short DescriptionSpherical Roller Bearing
Additional information2 parameters
Additional information
ParameterSymbolValue
Adapter sleeveH30/630-HG
Withdrawal sleeveAH30/630A-H
Technical Data24 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)630 mm
Outside Diamater (D)920 mm
Total Width (B)212 mm
Basic Dynamic Load Rating, Radial (Cr)6,300,000 N
Basic Static Load Rating, Radial (C0R)13,800,000 N
Diameter Lubrication Hole (Ds)12.5 mm
Operating Temperature Min. (Tmin)-30 °C
Minimum Diameter Shaft Shoulder (Da)658 mm
Operating Temperature Max. (Tmax)200 °C
Limiting Speed (Limiting Spe)680 1/min
Reference Speed (Nϑr)380 1/min
Maximum Recess Radius (Ra Max)6 mm
Maximum Diameter Of Housing Shoulder (Da)892 mm
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.22
Width Of Lubricating Groove (Ns)23.5 mm
Dynamic Axial Load Factor (Y1)3.01
Bore Diameter Outer Ring (D1)834.3 mm
Maximum Diameter Of Shaft Shoulder (Da Max)696 mm
Minimum Chamfer Dimension (Rmin)7.5 mm
Static Axial Load Factor (Y0)2.94
Dynamic Axial Load Factor (Y2)4.48
Minimum Cavity Width Of The Sleeve (Ba Min)20 mm
Minimum Cavity Diameter Of The Sleeve (Db Min)653 mm
Fatigue Load Limit, Radial (Cur)910,000 N

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
FAG 230/630-B-K-MB
Document matching
Exact designation, assembly scope, revision and units must agree.

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