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FAG / Four-point contact bearing

FAG QJ317-N2-MPA

Four-point contact bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
85 mm
Outside diameterD
180 mm
WidthB
41 mm
Dynamic load ratingC
248 kN
Static load ratingC0
255 kN
Limiting speednG
6600 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
SeriesQJ317
Bore diameterd85 mm
Outside diameterD180 mm
WidthB41 mm
Basic dynamic load ratingC248 kN
Basic static load ratingC0255 kN
Fatigue load limitPu12.8 kN
Reference speednref3550 r/min
Limiting speednG6600 r/min
Mass≈m5.362 kg
Precision classPN — Normal (ISO 492:2023)
CageMPA — Solid brass cage, outer ring guided
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax150 °C
Product characteristics5 parameters
Product characteristics
ParameterSymbolValue
Design, bearing outer ringN2Two retaining grooves in the outer ring on one side
Tolerance classPNNormal (ISO 492:2023)
CageMPASolid brass cage, outer ring guided
Dimensional / heat stabilizationS0Rings dimensional stabilized up to 150°
Axial internal clearanceCNGroup N (CN)
Main Dimensions & Performance Data9 parameters
Main Dimensions & Performance Data
ParameterSymbolValue
Bore diameterd85 mm3.346 in
Outside diameterD180 mm7.087 in
WidthB41 mm1.614 in
Basic dynamic load rating, radialCr248,000 N55,755.396 lbf
Basic static load rating, radialC0r255,000 N57,329.137 lbf
Fatigue load limit, radialCur12,800 N2,877.698 lbf
Limiting speednG6,600 1/min
Reference speednϑr3,550 1/min
Mass≈m5.362 kg11.821 lbs
Mounting dimensions3 parameters
Mounting dimensions
ParameterSymbolValue
Minimum diameter shaft shoulderda min99 mm3.898 in
Maximum diameter of housing shoulderDa max166 mm6.535 in
Maximum fillet radiusra max2.5 mm0.098 in
Dimensions9 parameters
Dimensions
ParameterSymbolValue
Minimum chamfer dimensionrmin3 mm0.118 in
Shoulder diameter outer ringD1148.7 mm5.854 in
Shoulder diameter inner ringd1117.94 mm4.643 in
Distance between the apexes of the pressure conesa92.8 mm3.654 in
Hight retaining slotan11.7 mm0.461 in
Width retaining slotbn10.5 mm0.413 in
Radius retaining slotrn2 mm0.079 in
Angle retaining slot45 °
Contact angleα35 °
Temperature range2 parameters
Temperature range
ParameterSymbolValue
Operating temperature min.Tmin-30 °C-22 °F
Operating temperature max.Tmax150 °C302 °F
Capabilities & suitability6 parameters
Capabilities & suitability
ParameterSymbolValue
Radial load capacityYes
Axial load capacity in one directionYes
Axial load capacity in both directionsYes
Suitable for grease lubricationYes
Suitable for oil lubricationYes
Unsealed designYes
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code366728
BrandFAG
Base TypeQJ317
Old Designation["QJ317N2MPA"]
SAP material number0192623100000
Base product230508AD41
Bearing X designationQJ317-N2-MPA
Mounting Manager IDQJ317-N2-MPA
Grease application IDQJ317-N2-MPA
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionFour point contact bearing QJ3..-N2-MPA, holding grooves, solid brass cage
Short DescriptionFour-point contact bearing
Technical Data22 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)85 mm
Outside Diameter (D)180 mm
Width (B)41 mm
Basic Dynamic Load Rating, Radial (Cr)248,000 N
Basic Static Load Rating, Radial (C0R)255,000 N
Operating Temperature Min. (Tmin)-30 °C
Limiting Speed (Ng)6,600 1/min
Operating Temperature Max. (Tmax)150 °C
Reference Speed (Nϑr)3,550 1/min
Angle Retaining Slot (Angle Retain)45 °
Hight Retaining Slot (An)11.7 mm
Radius Retaining Slot (Rn)2 mm
Fatigue Load Limit, Radial (Cur)12,800 N
Minimum Diameter Shaft Shoulder (Da Min)99 mm
Shoulder Diameter Inner Ring (D1)117.94 mm
Maximum Diameter Of Housing Shoulder (Da Max)166 mm
Minimum Chamfer Dimension (Rmin)3 mm
Maximum Fillet Radius (Ra Max)2.5 mm
Shoulder Diameter Outer Ring (D1)148.7 mm
Contact Angle (Α)35 °
Distance Between The Apexes Of The Pressure Cones (A)92.8 mm
Width Retaining Slot (Bn)10.5 mm

Technical documents & data sheet

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Record identity
FAG QJ317-N2-MPA
Document matching
Exact designation, assembly scope, revision and units must agree.

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