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NA49/22R - NTN Machined Needle Roller Bearing With Inner Ring
NA49/22R - NTN Machined Needle Roller Bearing With Inner Ring
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NA49/22R bearing reference breakdown
Below we will break down the NA49/22R bearing reference and provide an explanation for each section provided it can actually be broken down. We can split it into 3 parts the prefix, suffix and body of the item code.
The prefix can be found at the beginning of the bearing code:
Prefix
NA - Machined Ring Needle Roller Bearing w/ inner ringThe body of the bearing reference is what is left after removing the suffix and the prefix:
Body
49 - Single Row Needle Type22 - 22mm Bore
| d (mm) | 22 | D (mm) | 39 | C (mm) | 17 |
| F (mm) | 28 | rs min (mm) | 0.3 | s max (mm) | 0.8 |
| Dw (mm) | 4 | Lw (mm) | 12.8 | k (mm) | 2.5 |
| Mass (kg) | 0.08 |
| da min (mm) | 24 | Da max (mm) | 37 | ras max (mm) | 0.3 |
| Cr (kN) | 23.2 | C0r (kN) | 29.3 | Nlim (grease) (Tr/min) | 9500 |
| Nlim (oil) (Tr/min) | 14000 | Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 |
| Characteristic cage frequency FTF (Hz) | 0.44 | Characteristic rolling element frequency BSF (Hz) | 7.88 | Characteristic outer ring frequency BPF0 (Hz) | 7.44 |
| Characteristic inner ring frequency BPFI (Hz) | 9.56 |
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