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FAG / Spherical roller bearings

FAG 231S.908

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

Technical data available
Bore diameterd
241.3 mm
Outside diameterD
440 mm
WidthB
144 mm
Dynamic load ratingC
1880 kN
Static load ratingC0
3050 kN
Limiting speednG
580 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 specifications12 parameters
Core specifications
ParameterSymbolValue
Bore diameterd241.3 mm
Outside diameterD440 mm
WidthB144 mm
Basic dynamic load ratingC1880 kN
Basic static load ratingC03050 kN
Fatigue load limitPu222 kN
Limiting speednG580 r/min
Mass≈m118 kg
Internal clearanceCN (Group N) — Normal internal clearance
CageMA — Solid brass cage
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax200 °C
Product characteristics6 parameters
Product characteristics
ParameterSymbolValue
DesignE1AWithout central rip
Bore typeZCylindrical
CageMASolid brass cage
Radial internal clearanceCN (Group N)Normal internal clearance
Relubrication featureStandard
SplittedS.Split bearing inch
Main Dimensions & Performance Data9 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd241.3 mm9.5 in
Outside diameterD440 mm17.323 in
Width, outer ringC144 mm5.669 in
Basic dynamic load rating, radialCr1,880,000 N422,661.871 lbf
Basic static load rating, radialC0r3,050,000 N685,701.439 lbf
Fatigue load limit, radialCur222,000 N49,910.072 lbf
Limiting speednG580 1/min
Maximum axial loadFa max32,000 N7,194.245 lbf
Mass≈m118 kg260.145 lbs
Mounting dimensions2 parameters
Mounting dimensions
ParameterSymbolValue
Tightening torque clamping screwMi120 Nm88.496 ft-lbs
Tightening torque clamping screwMa69 Nm50.885 ft-lbs
Dimensions2 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimensionrmin4 mm0.157 in
Width inner ringB210 mm8.268 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 Ye0.3
Dynamic axial load factorY12.28
Dynamic axial load factorY23.39
Static axial load factorY02.23
Capabilities & suitability10 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
SplitYes
LargebearingYes
StaticangularerrorandmisalignmentYes
DynamicangularerrorandmisalignmentYes
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code1061886
BrandFAG
Base Type231S.908
X Life Markingn.r.
SAP material number0738486970000
Base product2305091140
Bearing X designation231S.908
Mounting Manager ID231S.908
Grease application ID231S.908
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionSpherical roller bearing 231S
Short DescriptionSpherical Roller Bearing
Additional information3 parameters
Additional information
ParameterSymbolValue
Bearing designation23152K
Adapter sleeveH3152XX908
HousingSNS3152-H-D
Technical Data18 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)241.3 mm
Outside Diamater (D)440 mm
Width, Outer Ring (C)144 mm
Basic Dynamic Load Rating, Radial (Cr)1,880,000 N
Basic Static Load Rating, Radial (C0R)3,050,000 N
Operating Temperature Min. (Tmin)-30 °C
Operating Temperature Max. (Tmax)200 °C
Limiting Speed (Limiting Spe)580 1/min
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.3
Width Inner Ring (B)210 mm
Dynamic Axial Load Factor (Y1)2.28
Tightening Torque Clamping Screw (Mi)120 Nm
Maximum Axial Load (Fa Max)32,000 N
Minimum Chamfer Dimension (Rmin)4 mm
Static Axial Load Factor (Y0)2.23
Tightening Torque Clamping Screw (Ma)69 Nm
Dynamic Axial Load Factor (Y2)3.39
Fatigue Load Limit, Radial (Cur)222,000 N

Technical documents & data sheet

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Record identity
FAG 231S.908
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