7309.BGA - SNR Single Row Or Matched Pair of Angular Contact Ball Bearing

  • £27.76

7309.BGA bearing reference breakdown

Below we will break down the 7309.BGA 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:


A - Which indicates a single row angular contact ball bearing, with a polyamide cage
BG - Which indicates a 40° contact angle, with a universal design

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


73 - Medium Series
09 - 45mm Bore Size

d (mm) 45 D (mm) 100 B (mm) 25
d1 (mm) 66.2 d2 (mm) 51.7 D1 (mm) 79.5
D2 (mm) 92.8 a (mm) 43 rs min (mm) 1.5
r1s min (mm) 1 Mass (kg) 0.81
da min (mm) 53.5 db min (mm) 53.5 Da max (mm) 91.5
Db max (mm) 94.5 r1a max (mm) 1 ra max (mm) 1.5
Dynamic load C (kN) 58.1 Static load C0 (kN) 39.7 Fatigue limit load Cu (kN) 1.8
Nref (Tr/min) 6600 Nlim (Tr/min) 8100 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) 3.82
Characteristic outer ring frequency BPF0 (Hz) 4.44 Characteristic inner ring frequency BPFI (Hz) 6.56

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