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FAG / Tapered roller bearings

FAG KL521949-L521910

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

Technical data available
Bore diameterd
107.95 mm
Outside diameterD
146.05 mm
WidthB
21.433 mm
Dynamic load ratingC
91 kN
Static load ratingC0
178 kN
Limiting speednG
4750 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 diameterd107.95 mm
Outside diameterD146.05 mm
WidthB21.433 mm
Basic dynamic load ratingC91 kN
Basic static load ratingC0178 kN
Fatigue load limitPu20.8 kN
Reference speednref2490 r/min
Limiting speednG4750 r/min
Mass≈m1.03 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 diameterd107.95 mm4.25 in
Outside diameterD146.05 mm5.75 in
Width, inner ringB21.433 mm0.844 in
Width, outer ringC16.67 mm0.656 in
Width, totalT21.433 mm0.844 in
Basic dynamic load rating, radialCr91,000 N20,458.633 lbf
Basic static load rating, radialC0r178,000 N40,017.986 lbf
Fatigue load limit, radialCur20,800 N4,676.259 lbf
Limiting speednG4,750 1/min
Thermal speed ratingnϑr2,490 1/min
Mass≈m1.03 kg2.271 lbs
Mounting dimensions8 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max114 mm4.488 in
Minimum diameter of shaft shoulderdb min116 mm4.567 in
Minimum diameter of housing shoulderDa min136 mm5.354 in
Minimum diameter of housing shoulderDb min141 mm5.551 in
Minimum axial spaceCa min3 mm0.118 in
Minimum axial spaceCb min5 mm0.197 in
Maximum fillet radius of shaftra max1.5 mm0.059 in
Maximum fillet radius of housingrb max1.5 mm0.059 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min1.5 mm0.059 in
Minimum chamfer dimension of outer ring back facer3, 4 min1.5 mm0.059 in
Distance between the apexes of the pressure conesa26 mm1.024 in
Guidance rib diameter of inner ringd1128.7 mm5.067 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 Ye0.39
Dynamic axial load factorY1.53
Static axial load factorY00.84
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 Code2267724
BrandFAG
Base TypeKL521949-L521910
Base product2305091001
Bearing X designationKL521949-L521910
Mounting Manager IDKL521949-L521910
Grease application IDKL521949-L521910
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionTapered roller bearings K-Series, in inch sizes, separable
Short DescriptionTapered roller bearing
Technical Data27 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)107.95 mm
Outside Diameter (D)146.05 mm
Width (B)21.433 mm
Basic Dynamic Load Rating, Radial (Cr)91,000 N
Basic Static Load Rating, Radial (C0R)178,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)4,750 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)2,490 1/min
Maximum Fillet Radius Of Housing (Rb Max)1.5 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)1.5 mm
Minimum Diameter Of Housing Shoulder (Da Min)136 mm
Minimum Diameter Of Housing Shoulder (Db Min)141 mm
Width, Outer Ring (C)16.67 mm
Fatigue Load Limit, Radial (Cur)20,800 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.39
Maximum Diameter Of Shaft Shoulder (Da Max)114 mm
Minimum Diameter Of Shaft Shoulder (Db Min)116 mm
Dynamic Axial Load Factor (Y)1.53
Maximum Fillet Radius (Ra Max)1.5 mm
Minimum Axial Space (Cb Min)5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)1.5 mm
Guidance Rib Diameter Of Inner Ring (D1)128.7 mm
Minimum Axial Space (Ca Min)3 mm
Width, Inner Ring (B)21.433 mm
Static Axial Load Factor (Y0)0.84
Distance Between The Apexes Of The Pressure Cones (A)26 mm

Technical documents & data sheet

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Record identity
FAG KL521949-L521910
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