Gear
heads
Dia.
[mm]
Length
[mm]
Ratio
Efficiency
[%]
Catalog
SPG12
12
14.2
3.5
85
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12
14.2
4.8
85
12
18
12
72
12
18
23
72
12
21.8
58
61
12
21.8
107
61
12
25.7
509
52