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6304.NR - SNR Single Row Deep Groove Ball Bearing

6304.NR - SNR Single Row Deep Groove Ball Bearing

Regular price £6.57
Regular price Sale price £6.57
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6304.NR bearing reference breakdown

Below we will break down the 6304.NR 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:


NR - Denotes a groove and snap ring on the outer ring

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


63 - Metric, Minature, Extra Light Series Deep Groove Ball Bearing
04 - 20mm Bore Size

d (mm) 20 D (mm) 52 B (mm) 15
d1 (mm) 30 D1 (mm) 45.5 rs min (mm) 1.1
Mass (kg) 0.15 a min (mm) 2.31 rNs min (mm) 0.5
a max (mm) 2.46 D3 max (mm) 49.73 b min (mm) 1.35
b max (mm) 1.65 r0 max (mm) 0.4 Ca min (mm) 3.33
Ca max (mm) 3.58 D4 max (mm) 57.9 f (mm) 1.07
da min (mm) 26.5 Ce min (mm) 0 Da max (mm) 45.5
ra max (mm) 1 rNa max (mm) 0.5 Db min (mm) 58.5
Dynamic load C (kN) 15.8 Static load C0 (kN) 7.9 Fatigue limit load Cu (kN) 0.36
f0 12.4 Nref (Tr/min) 14000 Nlim (Tr/min) 23000
Min operating temperature Tmin (°C) -40 Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.37
Characteristic rolling element frequency BSF (Hz) 3.52 Characteristic outer ring frequency BPF0 (Hz) 2.57 Characteristic inner ring frequency BPFI (Hz) 4.43
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