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FAG / Tapered roller bearings

FAG 33221

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

Technical data available
Bore diameterd
105 mm
Outside diameterD
190 mm
WidthB
68 mm
Dynamic load ratingC
475 kN
Static load ratingC0
720 kN
Limiting speednG
3500 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 diameterd105 mm
Outside diameterD190 mm
WidthB68 mm
Basic dynamic load ratingC475 kN
Basic static load ratingC0720 kN
Fatigue load limitPu84 kN
Reference speednref2550 r/min
Limiting speednG3500 r/min
Mass≈m8.4 kg
Precision classP6X — Class 6X (ISO 492:2023)
CageStandard — Sheet steel cage, window cage, roller-guided
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Product characteristics6 parameters
Product characteristics
ParameterSymbolValue
Tolerance classP6XClass 6X (ISO 492:2023)
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 diameterd105 mm4.134 in
Outside diameterD190 mm7.48 in
Width, inner ringB68 mm2.677 in
Width, outer ringC52 mm2.047 in
Width, totalT68 mm2.677 in
Basic dynamic load rating, radialCr475,000 N106,789.568 lbf
Basic static load rating, radialC0r720,000 N161,870.504 lbf
Fatigue load limit, radialCur84,000 N18,884.892 lbf
Limiting speednG3,500 1/min
Thermal speed ratingnϑr2,550 1/min
Mass≈m8.4 kg18.519 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max117 mm4.606 in
Minimum diameter of shaft shoulderdb min117 mm4.606 in
Minimum diameter of housing shoulderDa min159 mm6.26 in
Maximum diameter of housing shoulderDa max178 mm7.008 in
Minimum diameter of housing shoulderDb min182 mm7.165 in
Minimum axial spaceCa min10 mm0.394 in
Minimum axial spaceCb min16 mm0.63 in
Maximum fillet radius of shaftra max3 mm0.118 in
Maximum fillet radius of housingrb max2.5 mm0.098 in
Dimensions4 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimension of inner ring back facer1, 2 min3 mm0.118 in
Minimum chamfer dimension of outer ring back facer3, 4 min2.5 mm0.098 in
Distance between the apexes of the pressure conesa49 mm1.929 in
Guidance rib diameter of inner ringd1145.9 mm5.744 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 Code2268693
BrandFAG
Base Type33221
Base product2305091001
Bearing X designation33221
Mounting Manager ID33221
Grease application ID33221
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionTapered roller bearings 332, main dimensions acc. to DIN 720, separable
Short DescriptionTapered roller bearing
Additional information1 parameter
Additional information
ParameterSymbolValue
Comparative designation to ISO 10317 and ISO 355T3FE105
Technical Data28 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)105 mm
Outside Diameter (D)190 mm
Width (B)68 mm
Basic Dynamic Load Rating, Radial (Cr)475,000 N
Basic Static Load Rating, Radial (C0R)720,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)3,500 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)2,550 1/min
Maximum Fillet Radius Of Housing (Rb Max)2.5 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)2.5 mm
Minimum Diameter Of Housing Shoulder (Da Min)159 mm
Minimum Diameter Of Housing Shoulder (Db Min)182 mm
Width, Outer Ring (C)52 mm
Fatigue Load Limit, Radial (Cur)84,000 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)117 mm
Minimum Diameter Of Shaft Shoulder (Db Min)117 mm
Maximum Diameter Of Housing Shoulder (Da Max)178 mm
Dynamic Axial Load Factor (Y)1.49
Maximum Fillet Radius (Ra Max)3 mm
Minimum Axial Space (Cb Min)16 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)3 mm
Guidance Rib Diameter Of Inner Ring (D1)145.9 mm
Minimum Axial Space (Ca Min)10 mm
Width, Inner Ring (B)68 mm
Static Axial Load Factor (Y0)0.82
Distance Between The Apexes Of The Pressure Cones (A)49 mm

Technical documents & data sheet

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Record identity
FAG 33221
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