2311S NTN 55x120x43mm ra max. 2 mm Self aligning ball bearings
| rs min | 2 mm |
| e | 0.41 |
| Y1 | 1.5 |
| Y2 | 2.4 |
| Y0 | 1.6 |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 2.03 kg |
| Dynamic load, C | 76.5 kN |
| Static load, C0 | 24 kN |
| Nlim (oil) | 6.000 rpm |
| Nlim (grease) | 4.800 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| da min | 64 mm |
| Da max | 111 mm |
| ra max | 2 mm |
| Bearing number | 2311S |
| Size (mm) | 55x120x43 |
| Brand | NTN |
| Bore Diameter (mm) | 55 |
| Outer Diameter (mm) | 120 |
| Width (mm) | 43 |
| d | 55 mm |
| D | 120 mm |
| B | 43 mm |
| C | 43 mm |
| r min. | 2 mm |
| da min. | 64 mm |
| Da max. | 111 mm |
| ra max. | 2 mm |
| Weight | 2.03 Kg |
| Basic dynamic load rating (C) | 76.5 kN |
| Basic static load rating (C0) | 24 kN |
| (Grease) Lubrication Speed | 4 800 r/min |
| (Oil) Lubrication Speed | 6 000 r/min |
| Calculation factor (e) | 0.41 |
| Calculation factor (Y0) | 1.6 |
| Calculation factor (Y1) | 1.5 |
Detailed Parameters
parameter：
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| UCFX09 Bearing units | A0:55.6 mm ，Bore Diameter :45mm ，d:45 mm ，Brand:KOYO |
| TUP2 45.50 Plain bearings | Brand:CX ，Bore Diameter :45mm ，d:45 mm ，Outer Diameter :50mm |
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| 239/1180 Spherical roller bearings | Size :1180x1540x272mm ，Bore Diameter :1180mm ，Outer Diameter :1540mm ，Brand:ISB |
| K10X15X7.8 Needle roller bearings | Fw:10.000 mm ，Brand:NTN ，Outer Diameter :15.000mm ，Ew:15.000 mm ，Bore Diameter :10.000mm |
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| AST11 2540 Plain bearings | Outer Diameter :28mm ，Bore Diameter :25mm ，Bearing Type:straight ，Brand:AST |
| NK 30/20 Needle roller bearings | Outer Diameter :40mm ，Bore Diameter :30mm ，Size :30x40x20mm ，Width :20mm ，Brand:NBS |
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