NTN NA5911 needle roller bearings
NTN NA5911 needle roller bearings 50 Bore Diameter (mm) with easy-to-use parts graphics, giving you the ability to check parts availability, pricing, examine remanufactured options. 50x165x66 Size (mm)
| Size (mm) | 50x165x66 |
| Bore Diameter (mm) | 50 |
| Outer Diameter (mm) | 165 |
| Width (mm) | 66 |
| d | 50 mm |
| H | 165 mm |
| A | 66 mm |
| A1 | 64.26 mm |
| A2 | 43.5 mm |
| A3 | 17 mm |
| d1 | 66 mm |
| D1 | 128 mm |
| D2 | 124 mm |
| D3 | 76 mm |
| Basic dynamic load rating – C | 46.5 kN |
| Basic static load rating – C0 | 146 kN |
| Fatigue load limit – Pu | 5.4 kN |
| Limiting speed, Preload class A | 4800 r/min |
| Limiting speed for oil lubrication | 2400 mm/min |
| Preload class A | 4100 N |
| Preload class B | 8200 N |
| Frictional moment, Preload class A | 0.31 N·m |
| Frictional moment, Preload class B | 0.68 N·m |
| Static Axial rigidity, Preload class A | 1410 N/micron |
| Static Axial rigidity, Preload class B | 1800 N/micron |
| Basic dynamic load rating C | 46.5 kN |
| Basic static load rating C0 | 146 kN |
| Fatigue load limit Pu | 5.4 kN |
| Attainable speed for preload class A | 4800 r/min |
| Attainable speed for preload class B | 2400 r/min |
| Frictional moment for preload class A | 0.31 N·m |
| Frictional moment for preload class B | 0.68 N·m |
| Static axial stiffnes for preload class A | 1410 N/µm |
| Static axial stiffnes for preload class B | 1800 N/µm |
| Mass cartridge unit | 5.7 kg |
| Through hole diameter for attachment bolts N | 11.4 mm |
| Pitch diameter of attachement bolt holes J | 146 mm |
| Cartridge half diameter without flange J1 | 64 mm |
Detailed Parameters
parameter：
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