NTN 7220B DB Angular Contact Ball Bearings
| Brand Name |
NTN |
| Model Number |
7220B DB |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN 7220B DB bearing Size Chart (mm/inches) |
|---|
| d | 130 mm |
| D | 200 mm |
| B | 33 mm |
| d1 | 153.9 mm |
| d2 | 148.5 mm |
| D1 | 176.2 mm |
| D2 | 187.1 mm |
| a | 38.7 mm |
| Contact angle α | 15 ° |
| rs min | 2 mm |
| r1s min | 1 mm |
| f0 | 15.9 |
| Precision class | P42 |
| Mass | 3.25 kg |
| Dynamic load, C | 133 kN |
| Static load, C0 | 144 kN |
| Nlim (oil) | 11,400 rpm |
| Nlim (grease) | 7,100 rpm |
| Preload level | GN |
| Preload value | 0.8 kN |
| Axial rigidity | 163.2 N/µm |
| Radial rigidity | 945 N/µm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.44 Hz |
| Characteristic rolling element frequency, BSF | 7.88 Hz |
| Characteristic outer ring frequency, BPF0 | 9.67 Hz |
| Characteristic inner ring frequency, BPFI | 12.33 Hz |
| da min | 140 mm |
| Da max | 190 mm |
| Db max | 194.5 mm |
| r1a max | 1 mm |
| ra max | 2 mm |
| D6 | 153.9 mm |