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FAG / Spherical roller bearings

FAG 230/950-B-MB

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

Technical data available
Bore diameterd
950 mm
Outside diameterD
1360 mm
WidthB
300 mm
Dynamic load ratingC
12300 kN
Static load ratingC0
29500 kN
Limiting speednG
425 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
Series230/950
Bore diameterd950 mm
Outside diameterD1360 mm
WidthB300 mm
Basic dynamic load ratingC12300 kN
Basic static load ratingC029500 kN
Fatigue load limitPu1840 kN
Reference speednref218 r/min
Limiting speednG425 r/min
Mass≈m1469.69 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 typeZCylindrical
CageMBSolid brass cage
Radial internal clearanceCN (Group N)Normal internal clearance
Relubrication featureStandard
Main Dimensions & Performance Data9 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd950 mm37.402 in
Outside diameterD1,360 mm53.543 in
WidthB300 mm11.811 in
Basic dynamic load rating, radialCr12,300,000 N2,765,287.77 lbf
Basic static load rating, radialC0r29,500,000 N6,632,194.245 lbf
Fatigue load limit, radialCur1,840,000 N413,669.065 lbf
Limiting speednG425 1/min
Reference speednϑr218 1/min
Mass≈m1,469.69 kg3,240.108 lbs
Mounting dimensions3 parameters
Mounting dimensions
ParameterSymbolValue
Minimum diameter shaft shoulderda min978 mm38.504 in
Maximum diameter of housing shoulderDa max1,332 mm52.441 in
Maximum recess radiusra max6 mm0.236 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimensionrmin7.5 mm0.295 in
Bore diameter outer ringD11,244.7 mm49.004 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 factorY13.14
Dynamic axial load factorY24.67
Static axial load factorY03.07
Capabilities & suitability1 parameter
Capabilities & suitability
ParameterSymbolValue
LargebearingYes
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code389637
BrandFAG
Base Type230/950
Old Designation["230/950B.MB"]
X Life Markingn.r.
SAP material number0390332600000
Base product2305091131
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionSpherical roller bearing 230..-B-MB, symmetric 3 ribs
Short DescriptionSpherical Roller Bearing
Technical Data21 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)950 mm
Outside Diamater (D)1,360 mm
Total Width (B)300 mm
Basic Dynamic Load Rating, Radial (Cr)12,300,000 N
Basic Static Load Rating, Radial (C0R)29,500,000 N
Diameter Lubrication Hole (Ds)12.5 mm
Operating Temperature Min. (Tmin)-30 °C
Minimum Diameter Shaft Shoulder (Da)978 mm
Operating Temperature Max. (Tmax)200 °C
Limiting Speed (Limiting Spe)425 1/min
Reference Speed (Nϑr)218 1/min
Maximum Recess Radius (Ra Max)6 mm
Maximum Diameter Of Housing Shoulder (Da)1,332 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)3.14
Bore Diameter Outer Ring (D1)1,244.7 mm
Minimum Chamfer Dimension (Rmin)7.5 mm
Static Axial Load Factor (Y0)3.07
Dynamic Axial Load Factor (Y2)4.67
Fatigue Load Limit, Radial (Cur)1,840,000 N

Technical documents & data sheet

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Record identity
FAG 230/950-B-MB
Document matching
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