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 | 23960 | |
| Bore diameter | d | 300 mm |
| Outside diameter | D | 420 mm |
| Width | B | 90 mm |
| Basic dynamic load rating | C | 1270 kN |
| Basic static load rating | C0 | 2650 kN |
| Fatigue load limit | Pu | 170 kN |
| Reference speed | nref | 1000 r/min |
| Limiting speed | nG | 1780 r/min |
| Mass | ≈m | 37.825 kg |
| Internal clearance | CN (Group N) — Normal internal clearance | |
| Cage | MB — Solid brass cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design | B | With fixed central rib |
| Bore type | K | Tapered, taper 1:12 |
| Cage | MB | Solid brass cage |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
| Relubrication feature | Standard |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 300 mm11.811 in |
| Outside diameter | D | 420 mm16.535 in |
| Width | B | 90 mm3.543 in |
| Basic dynamic load rating, radial | Cr | 1,270,000 N285,521.583 lbf |
| Basic static load rating, radial | C0r | 2,650,000 N595,773.381 lbf |
| Fatigue load limit, radial | Cur | 170,000 N38,219.424 lbf |
| Limiting speed | nG | 1,780 1/min |
| Reference speed | nϑr | 1,000 1/min |
| Mass | ≈m | 37.825 kg83.39 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 312.4 mm12.299 in |
| Maximum diameter of housing shoulder | Da max | 407.6 mm16.047 in |
| Maximum recess radius | ra max | 2.5 mm0.098 in |
| Maximum diameter of shaft shoulder | da max | 329 mm12.953 in |
| Minimum cavity diameter of the sleeve | db min | 311 mm12.244 in |
| Minimum cavity width of the sleeve | Ba min | 12 mm0.472 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 3 mm0.118 in |
| Bore diameter outer ring | D1 | 384.6 mm15.142 in |
| Diameter lubrication hole | ds | 9.5 mm0.374 in |
| Width of lubricating groove | ns | 17.7 mm0.697 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 | 0.2 |
| Dynamic axial load factor | Y1 | 3.42 |
| Dynamic axial load factor | Y2 | 5.09 |
| Static axial load factor | Y0 | 3.34 |
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 Identity10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 389917 | |
| Brand | FAG | |
| Base Type | 23960 | |
| Old Designation | ["23960BK.MB"] | |
| X Life Marking | n.r. | |
| SAP material number | 0190423700000 | |
| Base product | 2305091131 | |
| Bearing X designation | 23960-B-K-MB | |
| Mounting Manager ID | 23960-B-K-MB | |
| Grease application ID | 23960-B-K-MB |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spherical roller bearings 239..-K, main dimensions to DIN 635-2, with tapered bore, taper 1:12 | |
| Short Description | Spherical Roller Bearing |
Additional information2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Adapter sleeve | H3960 | |
| Withdrawal sleeve | AH3960G |
Technical Data24 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 300 mm | |
| Outside Diamater (D) | 420 mm | |
| Total Width (B) | 90 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 1,270,000 N | |
| Basic Static Load Rating, Radial (C0R) | 2,650,000 N | |
| Diameter Lubrication Hole (Ds) | 9.5 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 312.4 mm | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Limiting Speed (Limiting Spe) | 1,780 1/min | |
| Reference Speed (Nϑr) | 1,000 1/min | |
| Maximum Recess Radius (Ra Max) | 2.5 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 407.6 mm | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.2 | |
| Width Of Lubricating Groove (Ns) | 17.7 mm | |
| Dynamic Axial Load Factor (Y1) | 3.42 | |
| Bore Diameter Outer Ring (D1) | 384.6 mm | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 329 mm | |
| Minimum Chamfer Dimension (Rmin) | 3 mm | |
| Static Axial Load Factor (Y0) | 3.34 | |
| Dynamic Axial Load Factor (Y2) | 5.09 | |
| Minimum Cavity Width Of The Sleeve (Ba Min) | 12 mm | |
| Minimum Cavity Diameter Of The Sleeve (Db Min) | 311 mm | |
| Fatigue Load Limit, Radial (Cur) | 170,000 N |