A
| : Journal diameter grade No. 1
|
B
| : Journal diameter grade No. 2
|
C
| : Journal diameter grade No. 3
|
D
| : Journal diameter grade No. 4
|
E
| : Pin diameter grade No. 1
|
F
| : Pin diameter grade No. 2
|
G
| : Pin diameter grade No. 3
|
H
| : Pin diameter grade No. 4
|
I
| : Pin diameter grade No. 5
|
J
| : Pin diameter grade No. 6
|
K
| : Identification
|