1220SK NTN Calculation factor (Y0) 3.8 100x180x34mm Self aligning ball bearings
| rs min | 2.1 mm |
| Associated sleeve reference | H220X |
| e | 0.17 |
| Y1 | 3.6 |
| Y2 | 5.6 |
| Y0 | 3.8 |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 3.82 kg |
| Dynamic load, C | 69.5 kN |
| Static load, C0 | 29.7 kN |
| Nlim (oil) | 3.800 rpm |
| Nlim (grease) | 3.200 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| da min | 111 mm |
| da max | 125 mm |
| db min | 106 mm |
| Ce min | 7 mm |
| Da max | 169 mm |
| ra max | 2 mm |
| Bearing number | 1220SK |
| Size (mm) | 100x180x34 |
| Brand | NTN |
| Bore Diameter (mm) | 100 |
| Outer Diameter (mm) | 180 |
| Width (mm) | 34 |
| d | 100 mm |
| D | 180 mm |
| B | 34 mm |
| C | 34 mm |
| r min. | 2.1 mm |
| da min. | 111 mm |
| Da max. | 169 mm |
| ra max. | 2 mm |
| Weight | 3.82 Kg |
| Basic dynamic load rating (C) | 69.5 kN |
| Basic static load rating (C0) | 29.7 kN |
| (Grease) Lubrication Speed | 3 200 r/min |
| (Oil) Lubrication Speed | 3 800 r/min |
| Calculation factor (e) | 0.17 |
| Calculation factor (Y0) | 3.8 |
| Calculation factor (Y1) | 3.6 |
Detailed Parameters
parameter：
| NJ232E Cylindrical roller bearings | Bore Diameter :160mm ，Brand:NTN ，Outer Diameter :290mm ，Size :160x290x48mm |
| 5311 Angular contact ball bearings | Brand:FBJ ，Outer Diameter :120mm ，Width :49.2mm ，Size :55x120x49.2mm ，Bore Diameter :55mm |
| 46790/46720 Tapered roller bearings | Brand:Timken ，Size :165.1x225.425x41.275mm ，Bore Diameter :165.1mm ，Outer Diameter :225.425mm |
| 63/32 Deep groove ball bearings | Dynamic load, C:29.8 kN ，Static load, C0:16.9 kN ，Fatigue limit load, Cu:0.77 kN ，rs min:1.1 mm ，Mass:0.38 kg ，Radial clearance class:CN |
| NJ29/900 Cylindrical roller bearings | d:900 mm ，Outer Diameter :1180mm ，Width :165mm ，Bore Diameter :900mm ，Size :900x1180x165mm ，Brand:CX |
| 24128MBK30 Spherical roller bearings | Outer Diameter :225mm ，Brand:AST ，Size :140x225x85mm ，Bearing Type:tapered bore ，Width :85mm ，Bore Diameter :140mm |
| 28R3620 Needle roller bearings | Outer Diameter :36mm ，Fw:28 mm ，Size :28x36x20mm ，Bore Diameter :28mm ，Width :20mm ，Brand:KOYO |
| 30224A Tapered roller bearings | Brand:ZVL ，Outer Diameter :215mm ，Size :120x215x43.5mm ，Bore Diameter :120mm |
| 7216WN Angular contact ball bearings | Bore Diameter :80mm ，Size :80x140x26mm ，Width :26mm ，Brand:Timken ，d:80 mm ，Outer Diameter :140mm |
| 1209K Self aligning ball bearings | Outer Diameter :85mm ，Bore Diameter :45mm ，Width :19mm ，Size :45x85x19mm ，Brand:FBJ |
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