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 | 238/1180 | |
| Bore diameter | d | 1180 mm |
| Outside diameter | D | 1420 mm |
| Width | B | 180 mm |
| Basic dynamic load rating | C | 6000 kN |
| Basic static load rating | C0 | 19200 kN |
| Fatigue load limit | Pu | 1130 kN |
| Reference speed | nref | 187 r/min |
| Limiting speed | nG | 430 r/min |
| Mass | ≈m | 718 kg |
| Internal clearance | C3 (Group 3) — Internal clearance larger than CN | |
| 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 | C3 (Group 3) | Internal clearance larger than CN |
| Relubrication feature | Standard |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 1,180 mm46.457 in |
| Outside diameter | D | 1,420 mm55.906 in |
| Width | B | 180 mm7.087 in |
| Basic dynamic load rating, radial | Cr | 6,000,000 N1,348,920.863 lbf |
| Basic static load rating, radial | C0r | 19,200,000 N4,316,546.763 lbf |
| Fatigue load limit, radial | Cur | 1,130,000 N254,046.763 lbf |
| Limiting speed | nG | 430 1/min |
| Reference speed | nϑr | 187 1/min |
| Mass | ≈m | 718 kg1,582.917 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 1,203 mm47.362 in |
| Maximum diameter of housing shoulder | Da max | 1,397 mm55 in |
| Maximum recess radius | ra max | 5 mm0.197 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 6 mm0.236 in |
| Bore diameter outer ring | D1 | 1,353.9 mm53.303 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 | 0.11 |
| Dynamic axial load factor | Y1 | 6.18 |
| Dynamic axial load factor | Y2 | 9.2 |
| Static axial load factor | Y0 | 6.04 |
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 | 389802 | |
| Brand | FAG | |
| Base Type | 238/1180 | |
| Old Designation | ["238/1180BK.MB.C3"] | |
| X Life Marking | n.r. | |
| SAP material number | 0190393440030 | |
| Base product | 2305091131 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Spherical roller bearings 238..-K, main dimensions to DIN 635-2, with tapered bore, taper 1:12 | |
| Short Description | Spherical Roller Bearing |
Technical Data21 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 1,180 mm | |
| Outside Diamater (D) | 1,420 mm | |
| Total Width (B) | 180 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 6,000,000 N | |
| Basic Static Load Rating, Radial (C0R) | 19,200,000 N | |
| Diameter Lubrication Hole (Ds) | 9.5 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 1,203 mm | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Limiting Speed (Limiting Spe) | 430 1/min | |
| Reference Speed (Nϑr) | 187 1/min | |
| Maximum Recess Radius (Ra Max) | 5 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 1,397 mm | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.11 | |
| Width Of Lubricating Groove (Ns) | 17.7 mm | |
| Dynamic Axial Load Factor (Y1) | 6.18 | |
| Bore Diameter Outer Ring (D1) | 1,353.9 mm | |
| Minimum Chamfer Dimension (Rmin) | 6 mm | |
| Static Axial Load Factor (Y0) | 6.04 | |
| Dynamic Axial Load Factor (Y2) | 9.2 | |
| Fatigue Load Limit, Radial (Cur) | 1,130,000 N |
