NBS K 21x25x13 needle roller bearings
NBS K 21x25x13 needle roller bearings Industries and Applications ? 30 mm d We sell discount online as 72 mm D well as cheap machinery 19 mm B parts.
| d | 30 mm |
| D | 72 mm |
| B | 19 mm |
| d1 | 42.4 mm |
| D1 | 62.6 mm |
| rs min | 1.1 mm |
| Radial clearance class | > C5 |
| Mass | 0.35 kg |
| Dynamic load, C | 0.01 kN |
| Static load, C0 | 0.01 kN |
| Fatigue limit load, Cu | 0 kN |
| f0 | 13.1 |
| Nlim | 50 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 350 °C |
| Characteristic cage frequency, FTF | 0.38 Hz |
| Characteristic rolling element frequency, BSF | 3.99 Hz |
| Characteristic outer ring frequency, BPF0 | 3.05 Hz |
| Characteristic inner ring frequency, BPFI | 4.95 Hz |
| da min | 36.5 mm |
| Da max | 65.5 mm |
| ra max | 1 mm |
Detailed Parameters
parameter：
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