There are 3 grades of "standard" bearing. You will need to look on the crankshaft to find the bearing grade you need.
Each bearing can be a different grade.
Each grade is a slight difference in the size of the bearing.
There's a diagram on this forum telling where to look on the crank (it's on one of the counterweights)
12111-54C00- grade 0
12111-54C01- grade 1
12111-54C02- grade 2
if the crank id used, there's a page in the workshop manual that tells you what bearing to use depending on the size of journal