1280/1220 KOYO Weight 0.294 Kg 22.225×57.15×22.225mm Tapered roller bearings
| Bearing number | 1280/1220 |
| Size (mm) | 22.225×57.15×22.225 |
| Brand | KOYO |
| Bore Diameter (mm) | 22.225 |
| Outer Diameter (mm) | 57.15 |
| Width (mm) | 22.225 |
| d | 22.225 mm |
| D | 57.15 mm |
| T | 22.225 mm |
| B | 22.225 mm |
| C | 17.462 mm |
| a | 15.3 mm |
| r min. | 0.8 mm |
| r2 min. | 1.6 mm |
| da min. | 29.5 mm |
| Da | 49 mm |
| db min | 29 mm |
| ra max. | 0.8 mm |
| rb max. | 1.6 mm |
| Db | 52 mm |
| Weight | 0.294 Kg |
| Basic dynamic load rating (C) | 52.6 kN |
| Basic static load rating (C0) | 55.7 kN |
| (Grease) Lubrication Speed | 7600 r/min |
| (Oil) Lubrication Speed | 10000 r/min |
| Calculation factor (e) | 0.35 |
| Calculation factor (Y0) | 0.95 |
Detailed Parameters
parameter：
| FYTJ 50 TF Bearing units | Size :50x40x18mm ，Outer Diameter :40mm ，Brand:SKF ，Width :18mm ，Bore Diameter :50mm ，d:50 mm |
| 7301B-2RS Angular contact ball bearings | Brand:ZEN ，d:12 mm ，Bore Diameter :12mm ，Outer Diameter :37mm ，Width :12mm ，Size :12x37x12mm |
| SA 80 ES Plain bearings | Size :80x120x55mm ，d:80 mm ，Outer Diameter :120mm ，Bore Diameter :80mm ，Width :55mm ，Brand:ISB |
| SF5220 Angular contact ball bearings | Brand:NTN ，Bore Diameter :260.000mm ，d:260.000 mm ，Size :260x340x38mm ，Outer Diameter :340.000mm ，Width :38.000mm |
| 54415 Thrust ball bearings | Bore Diameter :60mm ，Width :123mm ，Brand:KOYO ，Size :60x160x123mm ，Outer Diameter :160mm |
| NK105/26-XL Needle roller bearings | Bore Diameter :105mm ，Brand:INA ，Size :105x125x26mm ，Outer Diameter :125mm |
| E 255 7CE1 Angular contact ball bearings | Bore Diameter :55mm ，Brand:SNFA ，Size :55x100x21mm ，Outer Diameter :100mm |
| 7207T2DB/GNP5 Angular contact ball bearings | Bore Diameter :35mm ，Outer Diameter :72mm ，Brand:NTN ，d:35 mm ，Width :34mm ，Size :35x72x34mm |
| EXFL311 Bearing units | e:30 mm ，Bore Diameter :55mm ，Brand:SNR ，d:55 mm ，s:27.8 mm |
| UCF306 Bearing units | d:30 mm ，Width :43mm ，Brand:CX ，Bore Diameter :30mm |
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