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K68X74X35ZW - NTN Needle Roller & Cage Assembly
K68X74X35ZW - NTN Needle Roller & Cage Assembly
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K68X74X35ZW bearing reference breakdown
Below we will break down the K68X74X35ZW 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
68 - 68mm Internal Diameter74 - 74mm External Diameter
35 - 35mm Width
| Fw (mm) | 68 | Ew (mm) | 74 | Bc (mm) | 35 |
| Dw (mm) | 3 | Lw (mm) | 12.8 | Mass (kg) | 0.12 |
| b (mm) | 35 |
| 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) | 23.62 | Characteristic outer ring frequency BPF0 (Hz) | 19.16 | Characteristic inner ring frequency BPFI (Hz) | 20.84 |
| Cr (kN) | 49.5 | C0r (kN) | 125 | Nlim (grease) (Tr/min) | 4000 |
| Nlim (oil) (Tr/min) | 6000 |
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