Bearing 7221BDT NACHI 7221BDT NACHI bearing Size Chart (mm/inches) |
|---|
| Bearing number | 1308S |
| Size (mm) | 40x90x23 |
| Bore Diameter (mm) | 40 |
| Outer Diameter (mm) | 90 |
| Width (mm) | 23 |
| d | 40 mm |
| D | 90 mm |
| B | 23 mm |
| C | 23 mm |
| r min. | 1,5 mm |
| da min. | 48 mm |
| Da max. | 82 mm |
| ra max. | 1,5 mm |
| Weight | 0,715 Kg |
| Basic dynamic load rating (C) | 29,8 kN |
| Basic static load rating (C0) | 9,7 kN |
| (Grease) Lubrication Speed | 6 700 r/min |
| (Oil) Lubrication Speed | 8 500 r/min |
| Calculation factor (e) | 0,24 |
| Calculation factor (Y0) | 2,7 |
| Calculation factor (Y1) | 2,6 |
| rs min | 1.5 mm |
| e | 0.24 |
| Y1 | 2.6 |
| Y2 | 4 |
| Y0 | 2.7 |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0.72 kg |
| Dynamic load, C | 29.8 kN |
| Static load, C0 | 9.7 kN |
| Nlim (oil) | 8,500 rpm |
| Nlim (grease) | 6,700 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| da min | 48 mm |
| Da max | 82 mm |
| ra max | 1.5 mm |