Internal gears
Steel
Steel straight toothed (48)
1 (17)
1.5 (17)
2 (14)
25 (2)
30 (3)
32 (2)
36 (3)
40 (3)
45 (3)
48 (3)
50 (3)
55 (3)
60 (3)
65 (3)
70 (3)
72 (3)
80 (3)
90 (3)
100 (3)
120 (2)
heat treatable steel C45 (43)
high strength special steel ETG100 (5)
10 (17)
15 (17)
16 (14)
