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8Q-K12X18X12 - NTN Needle Roller & Cage Assembly
8Q-K12X18X12 - NTN Needle Roller & Cage Assembly
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8Q-K12X18X12 bearing reference breakdown
Below we will break down the 8Q-K12X18X12 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
8Q - Denotes a nitrided cageThe body of the bearing reference is what is left after removing the suffix and the prefix:
Body
12 - 12mm Internal Diameter18 - 18mm External Diameter
12 - 12mm Width
| Fw (mm) | 12 | Ew (mm) | 18 | Bc (mm) | 12 |
| Dw (mm) | 3 | Lw (mm) | 8.8 | Mass (kg) | 0.0089 |
| b (mm) | 12 |
| Min operating temperature Tmin (°C) | -20 | Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.4 |
| Characteristic rolling element frequency BSF (Hz) | 4.8 | Characteristic outer ring frequency BPF0 (Hz) | 3.6 | Characteristic inner ring frequency BPFI (Hz) | 5.4 |
| Cr (kN) | 8.65 | C0r (kN) | 8 | Nlim (grease) (Tr/min) | 17000 |
| Nlim (oil) (Tr/min) | 26000 |
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