Patent ID: 6416438
Filing Date: 2002-07-09
Classification: F16H

Abstract:
A transmitting unit comprising:an input shaft driven by a driving device; a sleeve driven together with the input shaft when the input shaft is driven and having a first concentric portion, a second concentric portion, and an eccentric portion; a first bearing assembled along the outer periphery of the first concentric portion; a second bearing assembled along the outer periphery of the second concentric portion; a third bearing assembled along the outer periphery of the eccentric portion and eccentrically moving when the input shaft is driven; an integrally formed transmitting race having a first flange surrounding the outer periphery of the first bearing, a second flange surrounding the outer periphery of the second bearing, and a third flange surrounding the outer periphery of the third bearing and integrally formed with the first and second flanges, the third flange having a plurality of radial holes spaced apart by a predetermined distance; the same plurality of transmitting rods respectively inserted into the radial holes of the third flange of the transmitting race; an integrally formed outer race located outside the transmitting race and having a plurality of wave grooves on the inner periphery thereof; a pair of fourth bearings provided between the outer race and the transmitting race, the fourth bearings being respectively assembled around the first and second flanges of the transmitting race; and the same plurality of balls respectively provided between the transmitting rods and the wave grooves of the outer race so as to roll on the wave grooves.