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FAG / Tapered roller bearings

FAG K33889-33822

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

Technical data available
Bore diameterd
50.8 mm
Outside diameterD
95.25 mm
WidthB
27.783 mm
Dynamic load ratingC
107 kN
Static load ratingC0
138 kN
Limiting speednG
7500 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 diameterD95.25 mm
WidthB27.783 mm
Basic dynamic load ratingC107 kN
Basic static load ratingC0138 kN
Fatigue load limitPu17.5 kN
Reference speednref5000 r/min
Limiting speednG7500 r/min
Mass≈m0.861 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 characteristics5 parameters
Product characteristics
ParameterSymbolValue
Tolerance classABMA4Class 4 (ANSI/ABMA 19.2:2013)
Heat treatmentStandard
CageStandardSheet steel cage, window cage, roller-guided
Quality levelStandard
Number of rows1Single-row design
Main Dimensions & Performance Data11 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd50.8 mm2 in
Outside diameterD95.25 mm3.75 in
Width, inner ringB28.575 mm1.125 in
Width, outer ringC22.225 mm0.875 in
Width, totalT27.783 mm1.094 in
Basic dynamic load rating, radialCr107,000 N24,055.755 lbf
Basic static load rating, radialC0r138,000 N31,025.18 lbf
Fatigue load limit, radialCur17,500 N3,934.353 lbf
Limiting speednG7,500 1/min
Thermal speed ratingnϑr5,000 1/min
Mass≈m0.861 kg1.898 lbs
Mounting dimensions8 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max58 mm2.283 in
Minimum diameter of shaft shoulderdb min64 mm2.52 in
Minimum diameter of housing shoulderDa min86 mm3.386 in
Minimum diameter of housing shoulderDb min90 mm3.543 in
Minimum axial spaceCa min5.5 mm0.217 in
Minimum axial spaceCb min5.5 mm0.217 in
Maximum fillet radius of shaftra max3.6 mm0.142 in
Maximum fillet radius of housingrb max0.8 mm0.031 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min3.6 mm0.142 in
Minimum chamfer dimension of outer ring back facer3, 4 min0.8 mm0.031 in
Distance between the apexes of the pressure conesa20 mm0.787 in
Guidance rib diameter of inner ringd173.1 mm2.878 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 factorY1.82
Static axial load factorY01
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 Identity8 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code1766795
BrandFAG
Base TypeK33889-33822
SAP material number0383594130000
Base product2305091001
Bearing X designationK33889-33822
Mounting Manager IDK33889-33822
Grease application IDK33889-33822
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)50.8 mm
Outside Diameter (D)95.25 mm
Width (B)27.783 mm
Basic Dynamic Load Rating, Radial (Cr)107,000 N
Basic Static Load Rating, Radial (C0R)138,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)7,500 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)5,000 1/min
Maximum Fillet Radius Of Housing (Rb Max)0.8 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)0.8 mm
Minimum Diameter Of Housing Shoulder (Da Min)86 mm
Minimum Diameter Of Housing Shoulder (Db Min)90 mm
Width, Outer Ring (C)22.225 mm
Fatigue Load Limit, Radial (Cur)17,500 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)58 mm
Minimum Diameter Of Shaft Shoulder (Db Min)64 mm
Dynamic Axial Load Factor (Y)1.82
Maximum Fillet Radius (Ra Max)3.6 mm
Minimum Axial Space (Cb Min)5.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)3.6 mm
Guidance Rib Diameter Of Inner Ring (D1)73.1 mm
Minimum Axial Space (Ca Min)5.5 mm
Width, Inner Ring (B)28.575 mm
Static Axial Load Factor (Y0)1
Distance Between The Apexes Of The Pressure Cones (A)20 mm

Technical documents & data sheet

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Record identity
FAG K33889-33822
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