Patent ID: 7201695

Claim:
A transmission comprising: a plurality of traction rollers distributed radially about a longitudinal axis of the transmission, each ball having a tiltable axis about which it rotates; an input disc in contact with the traction rollers; an output disc in contact with the traction rollers; an idler coaxial and rotatable about the longitudinal axis and in contact with the traction rollers; a speed signaling section on one of the input disc, output disc, traction rollers, or idler; a speed detecting part cooperating with the speed signaling section to detect the speed of one of the input disc, output disc, traction rollers, or idler; and a cage adapted to maintain a radial and axial orientation of the balls about the idler, wherein the cage is further adapted to rotate about the longitudinal axis and wherein the cage comprises: a disc-shaped input stator positioned between the balls and the input disc; a disc-shaped output stator positioned between the balls and the output disc; and a plurality of spacers adapted to rigidly connect the stators.