For crown wheel and pinion we have exploited some series as below:

ROCKWELL: 7x37, 8x37, 9x37, 10x37; 8x45, 9x39, 9x40, 9x44, 11x41, 12x41;
BENZ: 12x27, 15x29, 21x28;
I. H. C: 6x43, 7x43, 8x43, 9x43, 11x43, 9x40, 10x41, 11x41, 7x46

There are also BEDFORD, EATON, FORD, MAN, FIAT...Which can not listed all here.