The Z-axis cogged belt on my circa 1990 Acra knee mill, originally equipped with Anilam Crusader M control, is missing so I don't have the original to get numbers off of.
The aluminum drive housing has the Anilam logo cast into it, so I figure any similar knee mill that has the same should use the same belt. I've already bought new belts for the X and Y axes.
X is a 210L050 56 teeth
Y is a 300L050 80 teeth (There is a mis-marked run of 300L050 by Gates with 84 teeth.)
Z is shorter than the 210L050 but by how much? Tooth profile is the same as the other two.