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FAG / Tapered roller bearings

FAG K90334-90744

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

Technical data available
Bore diameterd
85 mm
Outside diameterD
188.912 mm
WidthB
53.297 mm
Dynamic load ratingC
280 kN
Static load ratingC0
365 kN
Limiting speednG
3550 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 diameterd85 mm
Outside diameterD188.912 mm
WidthB53.297 mm
Basic dynamic load ratingC280 kN
Basic static load ratingC0365 kN
Fatigue load limitPu41.5 kN
Reference speednref3400 r/min
Limiting speednG3550 r/min
Mass≈m6.7 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 diameterd85 mm3.346 in
Outside diameterD188.912 mm7.437 in
Width, inner ringB52.761 mm2.077 in
Width, outer ringC31.75 mm1.25 in
Width, totalT53.297 mm2.098 in
Basic dynamic load rating, radialCr280,000 N62,949.64 lbf
Basic static load rating, radialC0r365,000 N82,059.353 lbf
Fatigue load limit, radialCur41,500 N9,330.036 lbf
Limiting speednG3,550 1/min
Thermal speed ratingnϑr3,400 1/min
Mass≈m6.7 kg14.771 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max112 mm4.409 in
Minimum diameter of shaft shoulderdb min122 mm4.803 in
Minimum diameter of housing shoulderDa min148 mm5.827 in
Maximum diameter of housing shoulderDa max177 mm6.969 in
Minimum diameter of housing shoulderDb min179 mm7.047 in
Minimum axial spaceCa min5.5 mm0.217 in
Minimum axial spaceCb min21.5 mm0.846 in
Maximum fillet radius of shaftra max3.6 mm0.142 in
Maximum fillet radius of housingrb max3.3 mm0.13 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 min3.3 mm0.13 in
Distance between the apexes of the pressure conesa64 mm2.52 in
Guidance rib diameter of inner ringd1142.9 mm5.626 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 Ye0.87
Dynamic axial load factorY0.69
Static axial load factorY00.38
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 Code2267361
BrandFAG
Base TypeK90334-90744
Base product2305091001
Bearing X designationK90334-90744
Mounting Manager IDK90334-90744
Grease application IDK90334-90744
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)85 mm
Outside Diameter (D)188.912 mm
Width (B)53.297 mm
Basic Dynamic Load Rating, Radial (Cr)280,000 N
Basic Static Load Rating, Radial (C0R)365,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)3,550 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)3,400 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)148 mm
Minimum Diameter Of Housing Shoulder (Db Min)179 mm
Width, Outer Ring (C)31.75 mm
Fatigue Load Limit, Radial (Cur)41,500 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.87
Maximum Diameter Of Shaft Shoulder (Da Max)112 mm
Minimum Diameter Of Shaft Shoulder (Db Min)122 mm
Maximum Diameter Of Housing Shoulder (Da Max)177 mm
Dynamic Axial Load Factor (Y)0.69
Maximum Fillet Radius (Ra Max)3.6 mm
Minimum Axial Space (Cb Min)21.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)3.6 mm
Guidance Rib Diameter Of Inner Ring (D1)142.9 mm
Minimum Axial Space (Ca Min)5.5 mm
Width, Inner Ring (B)52.761 mm
Static Axial Load Factor (Y0)0.38
Distance Between The Apexes Of The Pressure Cones (A)64 mm

Technical documents & data sheet

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Record identity
FAG K90334-90744
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