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FAG / Tapered roller bearings

FAG KL21549-L21511

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

Technical data available
Bore diameterd
15.875 mm
Outside diameterD
34.989 mm
WidthB
10.998 mm
Dynamic load ratingC
13.8 kN
Static load ratingC0
13 kN
Limiting speednG
23400 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 diameterd15.875 mm
Outside diameterD34.989 mm
WidthB10.998 mm
Basic dynamic load ratingC13.8 kN
Basic static load ratingC013 kN
Fatigue load limitPu1.27 kN
Reference speednref13100 r/min
Limiting speednG23400 r/min
Mass≈m0.05 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 diameterd15.875 mm0.625 in
Outside diameterD34.989 mm1.378 in
Width, inner ringB10.998 mm0.433 in
Width, outer ringC8.712 mm0.343 in
Width, totalT10.998 mm0.433 in
Basic dynamic load rating, radialCr13,800 N3,102.518 lbf
Basic static load rating, radialC0r13,000 N2,922.662 lbf
Fatigue load limit, radialCur1,270 N285.522 lbf
Limiting speednG23,400 1/min
Thermal speed ratingnϑr13,100 1/min
Mass≈m0.05 kg0.11 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max20 mm0.787 in
Minimum diameter of shaft shoulderdb min21 mm0.827 in
Minimum diameter of housing shoulderDa min30 mm1.181 in
Maximum diameter of housing shoulderDa max30 mm1.181 in
Minimum diameter of housing shoulderDb min32 mm1.26 in
Minimum axial spaceCa min2.5 mm0.098 in
Minimum axial spaceCb min2 mm0.079 in
Maximum fillet radius of shaftra max1.3 mm0.051 in
Maximum fillet radius of housingrb max1.3 mm0.051 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min1.3 mm0.051 in
Minimum chamfer dimension of outer ring back facer3, 4 min1.3 mm0.051 in
Distance between the apexes of the pressure conesa8 mm0.315 in
Guidance rib diameter of inner ringd125.8 mm1.016 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 Ye0.32
Dynamic axial load factorY1.88
Static axial load factorY01.04
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 Code2267702
BrandFAG
Base TypeKL21549-L21511
Base product2305091001
Bearing X designationKL21549-L21511
Mounting Manager IDKL21549-L21511
Grease application IDKL21549-L21511
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)15.875 mm
Outside Diameter (D)34.989 mm
Width (B)10.998 mm
Basic Dynamic Load Rating, Radial (Cr)13,800 N
Basic Static Load Rating, Radial (C0R)13,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)23,400 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)13,100 1/min
Maximum Fillet Radius Of Housing (Rb Max)1.3 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)1.3 mm
Minimum Diameter Of Housing Shoulder (Da Min)30 mm
Minimum Diameter Of Housing Shoulder (Db Min)32 mm
Width, Outer Ring (C)8.712 mm
Fatigue Load Limit, Radial (Cur)1,270 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.32
Maximum Diameter Of Shaft Shoulder (Da Max)20 mm
Minimum Diameter Of Shaft Shoulder (Db Min)21 mm
Maximum Diameter Of Housing Shoulder (Da Max)30 mm
Dynamic Axial Load Factor (Y)1.88
Maximum Fillet Radius (Ra Max)1.3 mm
Minimum Axial Space (Cb Min)2 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)1.3 mm
Guidance Rib Diameter Of Inner Ring (D1)25.8 mm
Minimum Axial Space (Ca Min)2.5 mm
Width, Inner Ring (B)10.998 mm
Static Axial Load Factor (Y0)1.04
Distance Between The Apexes Of The Pressure Cones (A)8 mm

Technical documents & data sheet

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Record identity
FAG KL21549-L21511
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