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
| Parameter | Symbol | Value |
|---|---|---|
| Series | 23948 | |
| Bore diameter | d | 240 mm |
| Outside diameter | D | 320 mm |
| Width | B | 60 mm |
| Basic dynamic load rating | C | 640 kN |
| Basic static load rating | C0 | 1370 kN |
| Fatigue load limit | Pu | 96 kN |
| Reference speed | nref | 1310 r/min |
| Limiting speed | nG | 2440 r/min |
| Mass | ≈m | 12.92 kg |
| Internal clearance | C4 (Group 4) — Internal clearance larger than C3 | |
| Cage | MB — Solid brass cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore type | K | Tapered, taper 1:12 |
| Cage | MB | Solid brass cage |
| Radial internal clearance | C4 (Group 4) | Internal clearance larger than C3 |
| Relubrication feature | Standard |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 240 mm9.449 in |
| Outside diameter | D | 320 mm12.598 in |
| Width | B | 60 mm2.362 in |
| Basic dynamic load rating, radial | Cr | 640,000 N143,884.892 lbf |
| Basic static load rating, radial | C0r | 1,370,000 N308,003.597 lbf |
| Fatigue load limit, radial | Cur | 96,000 N21,582.734 lbf |
| Limiting speed | nG | 2,440 1/min |
| Reference speed | nϑr | 1,310 1/min |
| Mass | ≈m | 12.92 kg28.484 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 250.2 mm9.85 in |
| Maximum diameter of housing shoulder | Da max | 309.8 mm12.197 in |
| Maximum recess radius | ra max | 2.1 mm0.083 in |
| Maximum diameter of shaft shoulder | da max | 261 mm10.276 in |
| Minimum cavity diameter of the sleeve | db min | 250 mm9.843 in |
| Minimum cavity width of the sleeve | Ba min | 11 mm0.433 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 2.1 mm0.083 in |
| Bore diameter outer ring | D1 | 297.8 mm11.724 in |
| Diameter lubrication hole | ds | 6.3 mm0.248 in |
| Width of lubricating groove | ns | 12.2 mm0.48 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 200 °C392 °F |
Calculation factors4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y | e | 0.17 |
| Dynamic axial load factor | Y1 | 4.05 |
| Dynamic axial load factor | Y2 | 6.04 |
| Static axial load factor | Y0 | 3.96 |
Capabilities & suitability9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Axial load capacity in both directions | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes | |
| Largebearing | Yes | |
| Staticangularerrorandmisalignment | Yes | |
| Dynamicangularerrorandmisalignment | Yes |
Manufacturer Identity7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 389989 | |
| Brand | FAG | |
| Base Type | 23948 | |
| Old Designation | ["23948K.MB.C4"] | |
| X Life Marking | n.r. | |
| SAP material number | 0190419260040 | |
| Base product | 2305091131 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spherical roller bearing 239..-K-MB, symmetric 3 ribs | |
| Short Description | Spherical Roller Bearing |
Additional information2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Adapter sleeve | H3948 | |
| Withdrawal sleeve | AH3948 |
Technical Data24 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 240 mm | |
| Outside Diamater (D) | 320 mm | |
| Total Width (B) | 60 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 640,000 N | |
| Basic Static Load Rating, Radial (C0R) | 1,370,000 N | |
| Diameter Lubrication Hole (Ds) | 6.3 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 250.2 mm | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Limiting Speed (Limiting Spe) | 2,440 1/min | |
| Reference Speed (Nϑr) | 1,310 1/min | |
| Maximum Recess Radius (Ra Max) | 2.1 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 309.8 mm | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.17 | |
| Width Of Lubricating Groove (Ns) | 12.2 mm | |
| Dynamic Axial Load Factor (Y1) | 4.05 | |
| Bore Diameter Outer Ring (D1) | 297.8 mm | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 261 mm | |
| Minimum Chamfer Dimension (Rmin) | 2.1 mm | |
| Static Axial Load Factor (Y0) | 3.96 | |
| Dynamic Axial Load Factor (Y2) | 6.04 | |
| Minimum Cavity Width Of The Sleeve (Ba Min) | 11 mm | |
| Minimum Cavity Diameter Of The Sleeve (Db Min) | 250 mm | |
| Fatigue Load Limit, Radial (Cur) | 96,000 N |
