NTN PK44.4XPK53.9X31.7 needle roller bearings
Our highly-skilled and factory-trained 17 mm B service experts have the resources to help you 35 mm d with all your NTN PK44.4XPK53.9X31.7 needle roller bearings needs – including routine maintenance, major 72 mm D repairs, warranty service, and equipment inspections.
| d | 35 mm |
| D | 72 mm |
| B | 17 mm |
| a min | 3.07 mm |
| a max | 3.28 mm |
| rs min | 1.1 mm |
| rNs min | 0.5 mm |
| D3 max | 68.81 mm |
| b min | 1.9 mm |
| b max | 2.2 mm |
| r0 max | 0.6 mm |
| Radial clearance class | C3 |
| Mass | 0.29 kg |
| Dynamic load, C | 25.7 kN |
| Static load, C0 | 15.3 kN |
| Fatigue limit load, Cu | 0.7 kN |
| f0 | 13.8 |
| Nlim (grease) | 6,300 rpm |
| Min operating temperature, Tmin | -25 °C |
| Max operating temperature, Tmax | 110 °C |
| Characteristic cage frequency, FTF | 0.4 Hz |
| Characteristic rolling element frequency, BSF | 4.61 Hz |
| Characteristic outer ring frequency, BPF0 | 3.56 Hz |
| Characteristic inner ring frequency, BPFI | 5.44 Hz |
| da min | 41.5 mm |
| da max | 45 mm |
| Da max | 65.5 mm |
| ra max | 1 mm |
| rNa max | 0.5 mm |
Detailed Parameters
parameter：
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