2311 KOYO Bearing No. 2311 55x120x43mm Self aligning ball bearings
| Bearing number | 2311 |
| Size (mm) | 55x120x43 |
| Brand | KOYO |
| 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 | 2.10 Kg |
| Basic dynamic load rating (C) | 75.3 kN |
| Basic static load rating (C0) | 24.0 kN |
| (Grease) Lubrication Speed | 4600 r/min |
| (Oil) Lubrication Speed | 6400 r/min |
| Calculation factor (e) | 0.41 |
| Calculation factor (Y0) | 1.60 |
| Calculation factor (Y1) | 1.53 |
| Bearing No. | 2311 |
| r(min) | 2 |
| Cr | 75.4 |
| C0r | 23.8 |
| Cu | 1.50 |
| Grease lub. | 4600 |
| Oil lub. | 6400 |
| da(min) | 64 |
| Da(max) | 111 |
| ra(max) | 2 |
| e | 0.41 |
| Y1 | 1.53 |
| Y2 | 2.37 |
| Y0 | 1.60 |
| (Refer.)Mass(kg) | 2.10 |
Detailed Parameters
parameter：
| 7418 B Angular contact ball bearings | Outer Diameter :225mm ，Brand:ISO ，Bore Diameter :90mm ，Size :90x225x54mm |
| 53310 Thrust ball bearings | Width :34.3mm ，Bore Diameter :50mm ，Size :50x95x34.3mm ，Brand:KOYO ，Outer Diameter :95mm |
| 6944 Deep groove ball bearings | Size :220x300x38mm ，Brand:KOYO ，Outer Diameter :300mm ，Bore Diameter :220mm |
| RASEY60-N Bearing units | Width :60mm ，d:60 mm ，Brand:NKE ，Bore Diameter :60mm |
| NU 206 Cylindrical roller bearings | Size :30x62x16mm ，Outer Diameter :62mm ，Bore Diameter :30mm ，Brand:ISB ，Width :16mm |
| HMK2025 Needle roller bearings | Inner ring reference:IR15X20X26 ，Dw:2.5 mm ，Lw:20.8 mm ，Lubrication hole on outer ring:Non/No |
| 3386/3320 Tapered roller bearings | Outer Diameter :80.167mm ，Brand:Fersa ，Bore Diameter :39.688mm ，Width :29.37mm ，Size :39.688x80.167x29.37mm |
| 1310 Self aligning ball bearings | Outer Diameter :110mm ，Brand:NSK ，d:50 mm ，Width :27mm ，Size :50x110x27mm ，Bore Diameter :50mm |
| SL05-016 Cylindrical roller bearings | Size :80x120x45mm ，Outer Diameter :120.000mm ，Brand:NTN ，Bore Diameter :80.000mm |
| 3NCN1013K Cylindrical roller bearings | Size :65x100x18mm ，Bore Diameter :65mm ，Outer Diameter :100mm ，Brand:KOYO |
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