7318BG - NTN Single Row Or Matched Pair of Angular Contact Ball Bearing

  • £150.98


7318BG bearing reference breakdown

Below we will break down the 7318BG 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

BG - Indicates a 40° contact angle, universal design

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

Body

73 - Medium Series
18 - 90mm Bore Size

d (mm) 90 D (mm) 190 B (mm) 43
a (mm) 80.5 rs min (mm) 3 r1s min (mm) 1.1
Mass (kg) 5.16
da min (mm) 104 Da max (mm) 176 Db max (mm) 183
r1a max (mm) 1 ra max (mm) 2.5 db min (mm) 97
Dynamic load C (kN) 156 Static load C0 (kN) 135 Fatigue limit load Cu (kN) 5.2
Nlim (oil) (Tr/min) 4500 Nlim (grease) (Tr/min) 3400 Min operating temperature Tmin (°C) -40
Max operating temperature Tmax (°C) 120 Characteristic cage frequency FTF (Hz) 0.41 Characteristic rolling element frequency BSF (Hz) 4.28
Characteristic outer ring frequency BPF0 (Hz) 4.96 Characteristic inner ring frequency BPFI (Hz) 7.04

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