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KJ34X40X17.8XS - NTN Needle Roller & Cage Assembly
KJ34X40X17.8XS - NTN Needle Roller & Cage Assembly
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KJ34X40X17.8XS bearing reference breakdown
Below we will break down the KJ34X40X17.8XS 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
34 - 34mm Internal Diameter40 - 40mm External Diameter
17.8 - 17.8mm Width
| Fw (mm) | 34 | Ew (mm) | 40 | Bc (mm) | 17.8 |
| Dw (mm) | 3 | Lw (mm) | 13.8 | Mass (kg) | 0.03 |
| b (mm) | 17.8 |
| Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.46 |
| Characteristic rolling element frequency BSF (Hz) | 12.25 | Characteristic outer ring frequency BPF0 (Hz) | 10.11 | Characteristic inner ring frequency BPFI (Hz) | 11.89 |
| Cr (kN) | 22.3 | C0r (kN) | 36 | Nlim (grease) (Tr/min) | 8000 |
| Nlim (oil) (Tr/min) | 12000 |
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