BS2-2311-2RS/VT143 SKF Calculation factor – Y2 2.9 120x55x49mm Spherical roller bearings
| Bearing number | BS2-2311-2RS/VT143 |
| Size (mm) | 120x55x49 |
| Brand | SKF |
| Bore Diameter (mm) | 120 |
| Outer Diameter (mm) | 55 |
| Width (mm) | 49 |
| d | 55 mm |
| D | 120 mm |
| B | 49 mm |
| d2 | 67.5 mm |
| D1 | 107 mm |
| b | 6 mm |
| K | 3 mm |
| r1,2 – min. | 2 mm |
| da – min. | 66 mm |
| da – max. | 67.5 mm |
| Da – max. | 109 mm |
| ra – max. | 2 mm |
| Basic dynamic load rating – C | 280 kN |
| Basic static load rating – C0 | 280 kN |
| Fatigue load limit – Pu | 30 kN |
| Limiting speed | 2800 r/min |
| Calculation factor – e | 0.35 |
| Calculation factor – Y1 | 1.9 |
| Calculation factor – Y2 | 2.9 |
| Calculation factor – Y0 | 1.8 |
| d2 ≈ | 67.5 mm |
| D1 ≈ | 107 mm |
| r1,2 min. | 2 mm |
| da min. | 66 mm |
| da max. | 67.5 mm |
| Da max. | 109 mm |
| ra max. | 2 mm |
| Basic dynamic load rating C | 280 kN |
| Basic static load rating C0 | 280 kN |
| Fatigue load limit Pu | 30 kN |
| Calculation factor e | 0.35 |
| Calculation factor Y1 | 1.9 |
| Calculation factor Y2 | 2.9 |
| Calculation factor Y0 | 1.8 |
| Mass bearing | 2.8 kg |
Detailed Parameters
parameter：
| K55X63X25 Needle roller bearings | Cr:50.5 kN ，Lw:21.8 mm ，Dw:4 mm ，Mass:0.09 kg |
| 6211-2ZNR Deep groove ball bearings | Width :21mm ，Size :55x100x21mm ，Outer Diameter :100mm ，Brand:SKF ，Bore Diameter :55mm |
| UCFL207-21 Bearing units | A0:44.4 mm ，Brand:KOYO ，d:33.3375 mm ，Bore Diameter :33.3375mm |
| 23136-2CS5/VT143 Spherical roller bearings | Width :96mm ，Brand:SKF ，Size :180x300x96mm ，d:180 mm ，Outer Diameter :300mm ，Bore Diameter :180mm |
| DCL1320 Needle roller bearings | Size :20.638x26.988x31.75mm ，Bore Diameter :20.638mm ，Outer Diameter :26.988mm ，Brand:NTN |
| BTM425330J Needle roller bearings | Outer Diameter :53mm ，Width :30mm ，Fw:42 mm ，Size :42x53x30mm ，Bore Diameter :42mm ，Brand:KOYO |
| 713650020 Wheel bearings | Designation Ruville:5936 ，Designation SKF:VKBA 3454 ，Designation SX:CX420 ，Brand:FAG |
| 187TAD20 Thrust ball bearings | Brand:NACHI ，Bore Diameter :187mm ，Size :187x280x120mm ，Outer Diameter :280mm |
| 6013-Z-NR Deep groove ball bearings | Bore Diameter :65mm ，Width :18mm ，d:65 mm ，Outer Diameter :100mm ，Brand:NKE ，Size :65x100x18mm |
| MF63ZZ Deep groove ball bearings | Bore Diameter :3mm ，Outer Diameter :7.2mm ，Brand:NSK ，Size :3x7.2x2.5mm |
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