1221 KOYO 105x190x36mm Calculation factor (Y1) 3.56 Self aligning ball bearings
| Bearing number | 1221 |
| Size (mm) | 105x190x36 |
| Brand | KOYO |
| Bore Diameter (mm) | 105 |
| Outer Diameter (mm) | 190 |
| Width (mm) | 36 |
| d | 105 mm |
| D | 190 mm |
| B | 36 mm |
| C | 36 mm |
| r min. | 2.1 mm |
| da min. | 116 mm |
| Da max. | 179 mm |
| ra max. | 2 mm |
| Weight | 4.37 Kg |
| Basic dynamic load rating (C) | 77.0 kN |
| Basic static load rating (C0) | 34.0 kN |
| (Grease) Lubrication Speed | 2900 r/min |
| (Oil) Lubrication Speed | 3600 r/min |
| Calculation factor (e) | 0.18 |
| Calculation factor (Y0) | 3.73 |
| Calculation factor (Y1) | 3.56 |
Detailed Parameters
parameter：
| 249/950 CA/W33 Spherical roller bearings | Outer Diameter :950mm ，d:950 mm ，Brand:SKF ，Bore Diameter :1250mm ，Size :1250x950x300mm ，Width :300mm |
| F604ZZ Deep groove ball bearings | Bore Diameter :4mm ，Size :4x12x4mm ，Outer Diameter :12mm ，Brand:KOYO |
| DC4856AVW Cylindrical roller bearings | Size :280x350x69mm ，Outer Diameter :350mm ，Bore Diameter :280mm ，Brand:KOYO |
| 8510 Deep groove ball bearings | Outer Diameter :90mm ，Bore Diameter :50mm ，Brand:SIGMA ，Size :50x90x26mm |
| FJ-1816 Needle roller bearings | Width :16mm ，Size :18x24x16mm ，Outer Diameter :24mm ，Brand:NSK ，Bore Diameter :18mm |
| R10 Deep groove ball bearings | Outer Diameter :34.925mm ，Size :15.875x34.925x7.142mm ，Bore Diameter :15.875mm ，Brand:FBJ |
| 7018 CE/P4A Angular contact ball bearings | Size :140x90x24mm ，Outer Diameter :90mm ，Bore Diameter :140mm ，Brand:SKF ，Width :24mm |
| 71919 C-UX Angular contact ball bearings | Size :95x130x36mm ，Width :36mm ，Outer Diameter :130mm ，Brand:CX ，Bore Diameter :95mm |
| 498/493 Tapered roller bearings | Bore Diameter :84.138mm ，Outer Diameter :136.525mm ，Brand:FBJ ，Width :30.162mm ，Size :84.138x136.525x30.162mm |
| N28/1060 Cylindrical roller bearings | Brand:CX ，Bore Diameter :1060mm ，Outer Diameter :1280mm ，Size :1060x1280x128mm ，Width :128mm ，d:1060 mm |
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