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6305ZZ/5K - NTN Single Row Deep Groove Ball Bearing

6305ZZ/5K - NTN Single Row Deep Groove Ball Bearing

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6305ZZ/5K bearing reference breakdown

Below we will break down the 6305ZZ/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:


ZZ - Which denotes a steel shield
5K - Denotes universal grease for sealed and shielded bearings (-40°C up to +150°C)

The body of the bearing reference is what is left after removing the suffix and the prefix:


63 - Metric, Light Series Deep Groove Ball Bearing
05 - 25mm Bore Size

d (mm) 25 D (mm) 62 B (mm) 17
rs min (mm) 1.1 Mass (kg) 0.23
da min (mm) 31.5 Da max (mm) 55.5 ra max (mm) 1
Dynamic load C (kN) 21.2 Static load C0 (kN) 10.9 Fatigue limit load Cu (kN) 0.5
f0 12.6 Nlim (grease) (Tr/min) 12000 Min operating temperature Tmin (°C) -20
Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.37 Characteristic rolling element frequency BSF (Hz) 3.66
Characteristic outer ring frequency BPF0 (Hz) 2.61 Characteristic inner ring frequency BPFI (Hz) 4.39
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