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 | 23256 | |
| Bore diameter | d | 280 mm |
| Outside diameter | D | 500 mm |
| Width | B | 176 mm |
| Basic dynamic load rating | C | 3550 kN |
| Basic static load rating | C0 | 5200 kN |
| Fatigue load limit | Pu | 395 kN |
| Reference speed | nref | 630 r/min |
| Limiting speed | nG | 1280 r/min |
| Mass | ≈m | 142.72 kg |
| Internal clearance | C4 (Group 4) — Internal clearance larger than C3 | |
| Cage | MB1 — Solid brass cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design | BEA | With lose center lip ring |
| Bore type | K | Tapered, taper 1:12 |
| Cage | MB1 | 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 | 280 mm11.024 in |
| Outside diameter | D | 500 mm19.685 in |
| Width | B | 176 mm6.929 in |
| Basic dynamic load rating, radial | Cr | 3,550,000 N798,111.511 lbf |
| Basic static load rating, radial | C0r | 5,200,000 N1,169,064.748 lbf |
| Fatigue load limit, radial | Cur | 395,000 N88,803.957 lbf |
| Limiting speed | nG | 1,280 1/min |
| Reference speed | nϑr | 630 1/min |
| Mass | ≈m | 142.72 kg314.643 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 300 mm11.811 in |
| Maximum diameter of housing shoulder | Da max | 480 mm18.898 in |
| Maximum recess radius | ra max | 4 mm0.157 in |
| Maximum diameter of shaft shoulder | da max | 329 mm12.953 in |
| Minimum cavity diameter of the sleeve | db min | 299 mm11.772 in |
| Minimum cavity width of the sleeve | Ba min | 11 mm0.433 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 5 mm0.197 in |
| Bore diameter outer ring | D1 | 425.4 mm16.748 in |
| Diameter lubrication hole | ds | 12.5 mm0.492 in |
| Width of lubricating groove | ns | 23.5 mm0.925 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 | 0.34 |
| Dynamic axial load factor | Y1 | 1.96 |
| Dynamic axial load factor | Y2 | 2.92 |
| Static axial load factor | Y0 | 1.92 |
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 | 389395 | |
| Brand | FAG | |
| Base Type | 23256 | |
| Old Designation | ["23256-K-MB-C4","23256-E1A-K-MB1-C4"] | |
| X Life Marking | XL | |
| SAP material number | 0811798120040 | |
| Base product | 2305091122 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spherical roller bearing 232..-BEA-XL-K-MB1, symmetric 2 outer ribs with rib washer | |
| Short Description | Spherical Roller Bearing |
Additional information2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Adapter sleeve | H2356X | |
| Withdrawal sleeve | AH2356G |
Technical Data24 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 280 mm | |
| Outside Diamater (D) | 500 mm | |
| Total Width (B) | 176 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 3,550,000 N | |
| Basic Static Load Rating, Radial (C0R) | 5,200,000 N | |
| Diameter Lubrication Hole (Ds) | 12.5 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 300 mm | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Limiting Speed (Limiting Spe) | 1,280 1/min | |
| Reference Speed (Nϑr) | 630 1/min | |
| Maximum Recess Radius (Ra Max) | 4 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 480 mm | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.34 | |
| Width Of Lubricating Groove (Ns) | 23.5 mm | |
| Dynamic Axial Load Factor (Y1) | 1.96 | |
| Bore Diameter Outer Ring (D1) | 425.4 mm | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 329 mm | |
| Minimum Chamfer Dimension (Rmin) | 5 mm | |
| Static Axial Load Factor (Y0) | 1.92 | |
| Dynamic Axial Load Factor (Y2) | 2.92 | |
| Minimum Cavity Width Of The Sleeve (Ba Min) | 11 mm | |
| Minimum Cavity Diameter Of The Sleeve (Db Min) | 299 mm | |
| Fatigue Load Limit, Radial (Cur) | 395,000 N |