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6318ZZCM/5K - NTN Single Row Deep Groove Ball Bearing
6318ZZCM/5K - NTN Single Row Deep Groove Ball Bearing
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6318ZZCM/5K bearing reference breakdown
Below we will break down the 6318ZZCM/5K 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 suffix can be found at the end of the bearing number:
Suffix
ZZ - Denotes a steel shield5K - Denotes universal grease for sealed and shielded bearings (-40°C up to +150°C)
CM - Indicates a special normal radial internal clearance with tighten tolerances
The body of the bearing reference is what is left after removing the suffix and the prefix:
Body
63 - Metric, Light Series Deep Groove Ball Bearing18 - 90mm Bore Size
| d (mm) | 90 | D (mm) | 190 | B (mm) | 43 |
| rs min (mm) | 3 | Mass (kg) | 4.91 |
| da min (mm) | 103 | Da max (mm) | 177 | ra max (mm) | 2.5 |
| Dynamic load C (kN) | 143 | Static load C0 (kN) | 107 | Fatigue limit load Cu (kN) | 4.1 |
| f0 | 13.3 | Nlim (grease) (Tr/min) | 3600 | Min operating temperature Tmin (°C) | -20 |
| Max operating temperature Tmax (°C) | 120 | Characteristic cage frequency FTF (Hz) | 0.39 | Characteristic rolling element frequency BSF (Hz) | 4.18 |
| Characteristic outer ring frequency BPF0 (Hz) | 3.09 | Characteristic inner ring frequency BPFI (Hz) | 4.91 |
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