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K73X79X20 - NTN Needle Roller & Cage Assembly
K73X79X20 - NTN Needle Roller & Cage Assembly
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K73X79X20 bearing reference breakdown
Below we will break down the K73X79X20 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
K - Needle rollers with cageThe body of the bearing reference is what is left after removing the suffix and the prefix:
Body
73 - 73mm Internal Diameter79 - 79mm External Diameter
20 - 20mm Width
| Fw (mm) | 73 | Ew (mm) | 79 | Bc (mm) | 20 |
| Dw (mm) | 3 | Lw (mm) | 15.8 | Mass (kg) | 0.07 |
| b (mm) | 20 |
| Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.48 |
| Characteristic rolling element frequency BSF (Hz) | 25.29 | Characteristic outer ring frequency BPF0 (Hz) | 22.09 | Characteristic inner ring frequency BPFI (Hz) | 23.91 |
| Cr (kN) | 37.5 | C0r (kN) | 90 | Nlim (grease) (Tr/min) | 3700 |
| Nlim (oil) (Tr/min) | 5500 |
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