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FAG / Tapered roller bearings

FAG KLM503349-LM503310-Q3

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

Technical data available
Bore diameterd
45.987 mm
Outside diameterD
74.975 mm
WidthB
18 mm
Dynamic load ratingC
48.5 kN
Static load ratingC0
67 kN
Limiting speednG
9600 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
SeriesKLM503349-LM503310
Bore diameterd45.987 mm
Outside diameterD74.975 mm
WidthB18 mm
Basic dynamic load ratingC48.5 kN
Basic static load ratingC067 kN
Fatigue load limitPu8 kN
Reference speednref5500 r/min
Limiting speednG9600 r/min
Mass≈m0.304 kg
Precision classABMA3\n — Class 3 (ANSI/ABMA 19.2:2013)\n
CageStandard — Sheet steel cage, window cage, roller-guided
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Product characteristics6 parameters
Product characteristics
ParameterSymbolValue
Tolerance classABMA3\nClass 3 (ANSI/ABMA 19.2:2013)\n
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 diameterd45.987 mm1.811 in
Outside diameterD74.975 mm2.952 in
Width, inner ringB18 mm0.709 in
Width, outer ringC14 mm0.551 in
Width, totalT18 mm0.709 in
Basic dynamic load rating, radialCr48,500 N10,903.777 lbf
Basic static load rating, radialC0r67,000 N15,062.95 lbf
Fatigue load limit, radialCur8,000 N1,798.561 lbf
Limiting speednG9,600 1/min
Thermal speed ratingnϑr5,500 1/min
Mass≈m0.304 kg0.67 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max51 mm2.008 in
Minimum diameter of shaft shoulderdb min55 mm2.165 in
Minimum diameter of housing shoulderDa min67 mm2.638 in
Maximum diameter of housing shoulderDa max69 mm2.717 in
Minimum diameter of housing shoulderDb min71 mm2.795 in
Minimum axial spaceCa min4 mm0.157 in
Minimum axial spaceCb min3.5 mm0.138 in
Maximum fillet radius of shaftra max2.3 mm0.091 in
Maximum fillet radius of housingrb max1.5 mm0.059 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min2.3 mm0.091 in
Minimum chamfer dimension of outer ring back facer3, 4 min1.5 mm0.059 in
Distance between the apexes of the pressure conesa16 mm0.63 in
Guidance rib diameter of inner ringd162 mm2.441 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 Ye0.4
Dynamic axial load factorY1.49
Static axial load factorY00.82
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 Code2264725
BrandFAG
Base TypeKLM503349-LM503310
Base product2305091001
Bearing X designationKLM503349-LM503310-Q3
Mounting Manager IDKLM503349-LM503310-Q3
Grease application IDKLM503349-LM503310-Q3
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)45.987 mm
Outside Diameter (D)74.975 mm
Width (B)18 mm
Basic Dynamic Load Rating, Radial (Cr)48,500 N
Basic Static Load Rating, Radial (C0R)67,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)9,600 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)5,500 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)67 mm
Minimum Diameter Of Housing Shoulder (Db Min)71 mm
Width, Outer Ring (C)14 mm
Fatigue Load Limit, Radial (Cur)8,000 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.4
Maximum Diameter Of Shaft Shoulder (Da Max)51 mm
Minimum Diameter Of Shaft Shoulder (Db Min)55 mm
Maximum Diameter Of Housing Shoulder (Da Max)69 mm
Dynamic Axial Load Factor (Y)1.49
Maximum Fillet Radius (Ra Max)2.3 mm
Minimum Axial Space (Cb Min)3.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)2.3 mm
Guidance Rib Diameter Of Inner Ring (D1)62 mm
Minimum Axial Space (Ca Min)4 mm
Width, Inner Ring (B)18 mm
Static Axial Load Factor (Y0)0.82
Distance Between The Apexes Of The Pressure Cones (A)16 mm

Technical documents & data sheet

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Record identity
FAG KLM503349-LM503310-Q3
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