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KMJ30X37X20S - NTN Needle Roller & Cage Assembly
KMJ30X37X20S - NTN Needle Roller & Cage Assembly
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KMJ30X37X20S bearing reference breakdown
Below we will break down the KMJ30X37X20S 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 body of the bearing reference is what is left after removing the suffix and the prefix:
Body
30 - 30mm Internal Diameter37 - 37mm External Diameter
20 - 20mm Width
| Fw (mm) | 30 | Ew (mm) | 37 | Bc (mm) | 20 |
| Dw (mm) | 3.5 | Lw (mm) | 16.8 | Mass (kg) | 0.03 |
| b (mm) | 20 |
| Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.45 |
| Characteristic rolling element frequency BSF (Hz) | 9.47 | Characteristic outer ring frequency BPF0 (Hz) | 7.61 | Characteristic inner ring frequency BPFI (Hz) | 9.39 |
| Cr (kN) | 26.2 | C0r (kN) | 38 | Nlim (grease) (Tr/min) | 8500 |
| Nlim (oil) (Tr/min) | 13000 |
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