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FAG / Tapered roller bearings

FAG K45285-45220

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

Technical data available
Bore diameterd
50.8 mm
Outside diameterD
104.775 mm
WidthB
30.162 mm
Dynamic load ratingC
126 kN
Static load ratingC0
162 kN
Limiting speednG
6800 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 diameterd50.8 mm
Outside diameterD104.775 mm
WidthB30.162 mm
Basic dynamic load ratingC126 kN
Basic static load ratingC0162 kN
Fatigue load limitPu20.5 kN
Reference speednref4600 r/min
Limiting speednG6800 r/min
Mass≈m1.2 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 diameterd50.8 mm2 in
Outside diameterD104.775 mm4.125 in
Width, inner ringB30.958 mm1.219 in
Width, outer ringC23.812 mm0.937 in
Width, totalT30.162 mm1.187 in
Basic dynamic load rating, radialCr126,000 N28,327.338 lbf
Basic static load rating, radialC0r162,000 N36,420.863 lbf
Fatigue load limit, radialCur20,500 N4,608.813 lbf
Limiting speednG6,800 1/min
Thermal speed ratingnϑr4,600 1/min
Mass≈m1.2 kg2.646 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max62 mm2.441 in
Minimum diameter of shaft shoulderdb min65 mm2.559 in
Minimum diameter of housing shoulderDa min93 mm3.661 in
Maximum diameter of housing shoulderDa max94 mm3.701 in
Minimum diameter of housing shoulderDb min99 mm3.898 in
Minimum axial spaceCa min4 mm0.157 in
Minimum axial spaceCb min6 mm0.236 in
Maximum fillet radius of shaftra max2.3 mm0.091 in
Maximum fillet radius of housingrb max3.3 mm0.13 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 min3.3 mm0.13 in
Distance between the apexes of the pressure conesa22 mm0.866 in
Guidance rib diameter of inner ringd180.1 mm3.154 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 Ye0.33
Dynamic axial load factorY1.81
Static axial load factorY00.99
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 Code2266735
BrandFAG
Base TypeK45285-45220
Base product2305091001
Bearing X designationK45285-45220
Mounting Manager IDK45285-45220
Grease application IDK45285-45220
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)50.8 mm
Outside Diameter (D)104.775 mm
Width (B)30.162 mm
Basic Dynamic Load Rating, Radial (Cr)126,000 N
Basic Static Load Rating, Radial (C0R)162,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)6,800 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)4,600 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)93 mm
Minimum Diameter Of Housing Shoulder (Db Min)99 mm
Width, Outer Ring (C)23.812 mm
Fatigue Load Limit, Radial (Cur)20,500 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.33
Maximum Diameter Of Shaft Shoulder (Da Max)62 mm
Minimum Diameter Of Shaft Shoulder (Db Min)65 mm
Maximum Diameter Of Housing Shoulder (Da Max)94 mm
Dynamic Axial Load Factor (Y)1.81
Maximum Fillet Radius (Ra Max)2.3 mm
Minimum Axial Space (Cb Min)6 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)2.3 mm
Guidance Rib Diameter Of Inner Ring (D1)80.1 mm
Minimum Axial Space (Ca Min)4 mm
Width, Inner Ring (B)30.958 mm
Static Axial Load Factor (Y0)0.99
Distance Between The Apexes Of The Pressure Cones (A)22 mm

Technical documents & data sheet

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Record identity
FAG K45285-45220
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