7309 - NTN Single Row Or Matched Pair of Angular Contact Ball Bearing

  • £20.76

7309 bearing reference breakdown

Below we will break down the 7309 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 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
a (mm) 33.5 rs min (mm) 1.5 r1s min (mm) 1
Mass (kg) 0.84
da min (mm) 53.5 Da max (mm) 91.5 Db max (mm) 94.5
r1a max (mm) 1 ra max (mm) 1 db min (mm) 50.5
Dynamic load C (kN) 63.5 Static load C0 (kN) 44 Fatigue limit load Cu (kN) 2
Nlim (oil) (Tr/min) 10000 Nlim (grease) (Tr/min) 7800 Min operating temperature Tmin (°C) -40
Max operating temperature Tmax (°C) 120

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