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