Patent ID: 7241245

Claim:
A gear-bearing differential speed transducer on basis of wave gear with intermediate rolling bodies comprising a wave generator and torque transmitting unit, said transmitting unit including at least three cooperating cage members, each of said cage members having a profile cam surface in the form of periodic along azimuth grooves continuously interacting with said rolling bodies, one of said cage members coupled to said wave generator, and at least in one of said other cage members said groove is a periodically bent endless one and any endless periodic grooves of the resi of the other cages members are bent in the same direction, characterized in that the cage members are embodied in the form of coaxial to each other cages, each of said cage members conjugated with two adjacent cages, and at least two of said cage members conjugated by their intersecting surfaces, said grooves are located at said intersecting surfaces, said cage member coupled to said wave generator arranged so as to force said rolling bodies in a direction in a plane of axial section of said transmitting unit.