Answer / deivasigamani

first digit for type of bearing
second digit for load with standing
last two digits ID of the bearing

example

6205 zz bearing
6-ball baering
2-load
05- id is 25mm
zz- double side shield

Answer / vishram kulkarni

the bearing number is the code which gives the guidelines
for the specification of bearing type, it's sizes in ID and
OD,Thickness with clearances between element and cages for
exact application and selection.

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