SAE No. A B C Bolt Holes
No. Diameter
mm in mm in mm in mm in
00 787.4 31 850.9 33.5 882.65 34.75 16 13.49 17/32
0 647.7 25.5 679.45 26.75 711.2 28.0 16 13.49 17/32
1/2 584.2 23 619.13 24.375 647.7 25.5 16 13.49 17/32
1 511.18 20.125 530.23 20.875 552.45 21.75 12 11.91 15/32 
2 447.68 17.625 466.73 18.375 488.95 19.25 12 10.32 13/32
3 409.58 16.125 428.63 16.875 450.85 17.75 12 10.32 13/32
4 361.95 14.25 381.0 15.0 403.23 15.875 12 10.32 13/32
5 314.33 12.375 333.38 13.125 355.6 14.0 8 10.32 13/32
6 266.7 10.5 285.75 11.25 307.98 12.125 8 10.32 13/32