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FAG / Tapered roller bearings

FAG KM804048-M804010

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

Technical data available
Bore diameterd
47.625 mm
Outside diameterD
88.9 mm
WidthB
25.4 mm
Dynamic load ratingC
86 kN
Static load ratingC0
110 kN
Limiting speednG
8000 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Bore diameterd47.625 mm
Outside diameterD88.9 mm
WidthB25.4 mm
Basic dynamic load ratingC86 kN
Basic static load ratingC0110 kN
Fatigue load limitPu13.5 kN
Reference speednref5500 r/min
Limiting speednG8000 r/min
Mass≈m0.679 kg
Precision classABMA4 — Class 4 (ANSI/ABMA 19.2:2013)
CageStandard — Sheet steel cage, window cage, roller-guided
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Product characteristics6 parameters
Product characteristics
ParameterSymbolValue
Tolerance classABMA4Class 4 (ANSI/ABMA 19.2:2013)
Heat treatmentStandard
CageStandardSheet steel cage, window cage, roller-guided
Internal designStandard
Quality levelStandard
Number of rows1Single-row design
Main Dimensions & Performance Data11 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd47.625 mm1.875 in
Outside diameterD88.9 mm3.5 in
Width, inner ringB25.4 mm1 in
Width, outer ringC19.05 mm0.75 in
Width, totalT25.4 mm1 in
Basic dynamic load rating, radialCr86,000 N19,334.532 lbf
Basic static load rating, radialC0r110,000 N24,730.216 lbf
Fatigue load limit, radialCur13,500 N3,035.072 lbf
Limiting speednG8,000 1/min
Thermal speed ratingnϑr5,500 1/min
Mass≈m0.679 kg1.497 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max56 mm2.205 in
Minimum diameter of shaft shoulderdb min59 mm2.323 in
Minimum diameter of housing shoulderDa min77 mm3.031 in
Maximum diameter of housing shoulderDa max79 mm3.11 in
Minimum diameter of housing shoulderDb min85 mm3.346 in
Minimum axial spaceCa min3 mm0.118 in
Minimum axial spaceCb min6 mm0.236 in
Maximum fillet radius of shaftra max0.8 mm0.031 in
Maximum fillet radius of housingrb max3.3 mm0.13 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min0.8 mm0.031 in
Minimum chamfer dimension of outer ring back facer3, 4 min3.3 mm0.13 in
Distance between the apexes of the pressure conesa24 mm0.945 in
Guidance rib diameter of inner ringd170 mm2.756 in
Temperature range2 parameters
Temperature range
ParameterSymbolValue
Operating temperature min.Tmin-30 °C-22 °F
Operating temperature max.Tmax120 °C248 °F
Calculation factors3 parameters
Calculation factors
ParameterSymbolValue
Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye0.55
Dynamic axial load factorY1.1
Static axial load factorY00.6
Capabilities & suitability5 parameters
Capabilities & suitability
ParameterSymbolValue
Radial load capacityYes
Axial load capacity in one directionYes
Suitable for grease lubricationYes
Suitable for oil lubricationYes
Unsealed designYes
Manufacturer Identity7 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code2267896
BrandFAG
Base TypeKM804048-M804010
Base product2305091001
Bearing X designationKM804048-M804010
Mounting Manager IDKM804048-M804010
Grease application IDKM804048-M804010
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionTapered roller bearings K-Series, in inch sizes, separable
Short DescriptionTapered roller bearing
Technical Data28 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)47.625 mm
Outside Diameter (D)88.9 mm
Width (B)25.4 mm
Basic Dynamic Load Rating, Radial (Cr)86,000 N
Basic Static Load Rating, Radial (C0R)110,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)8,000 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)5,500 1/min
Maximum Fillet Radius Of Housing (Rb Max)3.3 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)3.3 mm
Minimum Diameter Of Housing Shoulder (Da Min)77 mm
Minimum Diameter Of Housing Shoulder (Db Min)85 mm
Width, Outer Ring (C)19.05 mm
Fatigue Load Limit, Radial (Cur)13,500 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.55
Maximum Diameter Of Shaft Shoulder (Da Max)56 mm
Minimum Diameter Of Shaft Shoulder (Db Min)59 mm
Maximum Diameter Of Housing Shoulder (Da Max)79 mm
Dynamic Axial Load Factor (Y)1.1
Maximum Fillet Radius (Ra Max)0.8 mm
Minimum Axial Space (Cb Min)6 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)0.8 mm
Guidance Rib Diameter Of Inner Ring (D1)70 mm
Minimum Axial Space (Ca Min)3 mm
Width, Inner Ring (B)25.4 mm
Static Axial Load Factor (Y0)0.6
Distance Between The Apexes Of The Pressure Cones (A)24 mm

Technical documents & data sheet

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Record identity
FAG KM804048-M804010
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