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FAG / Tapered roller bearings

FAG K18690-18620

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

Technical data available
Bore diameterd
46.038 mm
Outside diameterD
79.375 mm
WidthB
17.463 mm
Dynamic load ratingC
44.5 kN
Static load ratingC0
55 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Bore diameterd46.038 mm
Outside diameterD79.375 mm
WidthB17.463 mm
Basic dynamic load ratingC44.5 kN
Basic static load ratingC055 kN
Fatigue load limitPu6.2 kN
Reference speednref5700 r/min
Limiting speednG9600 r/min
Mass≈m0.332 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 diameterd46.038 mm1.813 in
Outside diameterD79.375 mm3.125 in
Width, inner ringB17.463 mm0.688 in
Width, outer ringC13.495 mm0.531 in
Width, totalT17.463 mm0.688 in
Basic dynamic load rating, radialCr44,500 N10,004.496 lbf
Basic static load rating, radialC0r55,000 N12,365.108 lbf
Fatigue load limit, radialCur6,200 N1,393.885 lbf
Limiting speednG9,600 1/min
Thermal speed ratingnϑr5,700 1/min
Mass≈m0.332 kg0.732 lbs
Mounting dimensions8 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max51 mm2.008 in
Minimum diameter of shaft shoulderdb min56 mm2.205 in
Minimum diameter of housing shoulderDa min71 mm2.795 in
Minimum diameter of housing shoulderDb min74 mm2.913 in
Minimum axial spaceCa min4 mm0.157 in
Minimum axial spaceCb min3.5 mm0.138 in
Maximum fillet radius of shaftra max2.8 mm0.11 in
Maximum fillet radius of housingrb max1.5 mm0.059 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min2.8 mm0.11 in
Minimum chamfer dimension of outer ring back facer3, 4 min1.5 mm0.059 in
Distance between the apexes of the pressure conesa15 mm0.591 in
Guidance rib diameter of inner ringd161.7 mm2.429 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 Ye0.37
Dynamic axial load factorY1.6
Static axial load factorY00.88
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 Code2266114
BrandFAG
Base TypeK18690-18620
Base product2305091001
Bearing X designationK18690-18620
Mounting Manager IDK18690-18620
Grease application IDK18690-18620
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)46.038 mm
Outside Diameter (D)79.375 mm
Width (B)17.463 mm
Basic Dynamic Load Rating, Radial (Cr)44,500 N
Basic Static Load Rating, Radial (C0R)55,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)9,600 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)5,700 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)71 mm
Minimum Diameter Of Housing Shoulder (Db Min)74 mm
Width, Outer Ring (C)13.495 mm
Fatigue Load Limit, Radial (Cur)6,200 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.37
Maximum Diameter Of Shaft Shoulder (Da Max)51 mm
Minimum Diameter Of Shaft Shoulder (Db Min)56 mm
Dynamic Axial Load Factor (Y)1.6
Maximum Fillet Radius (Ra Max)2.8 mm
Minimum Axial Space (Cb Min)3.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)2.8 mm
Guidance Rib Diameter Of Inner Ring (D1)61.7 mm
Minimum Axial Space (Ca Min)4 mm
Width, Inner Ring (B)17.463 mm
Static Axial Load Factor (Y0)0.88
Distance Between The Apexes Of The Pressure Cones (A)15 mm

Technical documents & data sheet

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Record identity
FAG K18690-18620
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