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FAG / Tapered roller bearings

FAG 30317-A

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

Technical data available
Bore diameterd
85 mm
Outside diameterD
180 mm
WidthB
44.5 mm
Dynamic load ratingC
310 kN
Static load ratingC0
375 kN
Limiting speednG
4050 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 specifications14 parameters
Core specifications
ParameterSymbolValue
Series30317
Bore diameterd85 mm
Outside diameterD180 mm
WidthB44.5 mm
Basic dynamic load ratingC310 kN
Basic static load ratingC0375 kN
Fatigue load limitPu43 kN
Reference speednref3100 r/min
Limiting speednG4050 r/min
Mass≈m4.94 kg
Precision classPN — Normal (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 classPNNormal (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 diameterd85 mm3.346 in
Outside diameterD180 mm7.087 in
Width, inner ringB41 mm1.614 in
Width, outer ringC34 mm1.339 in
Width, totalT44.5 mm1.752 in
Basic dynamic load rating, radialCr310,000 N69,694.245 lbf
Basic static load rating, radialC0r375,000 N84,307.554 lbf
Fatigue load limit, radialCur43,000 N9,667.266 lbf
Limiting speednG4,050 1/min
Thermal speed ratingnϑr3,100 1/min
Mass≈m4.94 kg10.891 lbs
Mounting dimensions9 parameters
Mounting dimensions
ParameterSymbolValue
Maximum diameter of shaft shoulderda max107 mm4.213 in
Minimum diameter of shaft shoulderdb min99 mm3.898 in
Minimum diameter of housing shoulderDa min156 mm6.142 in
Maximum diameter of housing shoulderDa max166 mm6.535 in
Minimum diameter of housing shoulderDb min167 mm6.575 in
Minimum axial spaceCa min6 mm0.236 in
Minimum axial spaceCb min10.5 mm0.413 in
Maximum fillet radius of shaftra max3 mm0.118 in
Maximum fillet radius of housingrb max3 mm0.118 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 min3 mm0.118 in
Distance between the apexes of the pressure conesa36 mm1.417 in
Guidance rib diameter of inner ringd1127.6 mm5.024 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 Ye0.35
Dynamic axial load factorY1.74
Static axial load factorY00.96
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 Identity10 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code383452
BrandFAG
Base Type30317
Old Designation["30317A"]
X Life Markingn.r.
SAP material number0167110090000
Base product2305091001
Bearing X designation30317-A
Mounting Manager ID30317-A
Grease application ID30317-A
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionTapered roller bearings 303, main dimensions acc. to DIN 720, separable
Short DescriptionTapered roller bearing
Additional information1 parameter
Additional information
ParameterSymbolValue
Comparative designation to ISO 10317 and ISO 355T2GB085
Technical Data28 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)85 mm
Outside Diameter (D)180 mm
Width (B)44.5 mm
Basic Dynamic Load Rating, Radial (Cr)310,000 N
Basic Static Load Rating, Radial (C0R)375,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)4,050 1/min
Operating Temperature Max. (Tmax)120 °C
Reference Speed (Nϑr)3,100 1/min
Maximum Fillet Radius Of Housing (Rb Max)3 mm
Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M)3 mm
Minimum Diameter Of Housing Shoulder (Da Min)156 mm
Minimum Diameter Of Housing Shoulder (Db Min)167 mm
Width, Outer Ring (C)34 mm
Fatigue Load Limit, Radial (Cur)43,000 N
Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E)0.35
Maximum Diameter Of Shaft Shoulder (Da Max)107 mm
Minimum Diameter Of Shaft Shoulder (Db Min)99 mm
Maximum Diameter Of Housing Shoulder (Da Max)166 mm
Dynamic Axial Load Factor (Y)1.74
Maximum Fillet Radius (Ra Max)3 mm
Minimum Axial Space (Cb Min)10.5 mm
Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M)3 mm
Guidance Rib Diameter Of Inner Ring (D1)127.6 mm
Minimum Axial Space (Ca Min)6 mm
Width, Inner Ring (B)41 mm
Static Axial Load Factor (Y0)0.96
Distance Between The Apexes Of The Pressure Cones (A)36 mm

Technical documents & data sheet

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Record identity
FAG 30317-A
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