In FIG 1 is shown {HEAD ~ a wave gear drive} comprising an inner gear having a given number of external teeth and {TAIL ~ an outer gear} having a slightly larger number of internal teeth 
comprising
In FIG 1 is shown { HEAD ~ a wave gear drive } comprising an inner gear having a given number of external teeth and { TAIL ~ an outer gear } having a slightly larger number of internal teeth
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH