Patent ID: 6342023
Filing Date: 2002-01-29
Classification: F16H,Y10S

Abstract:
An orbital gear system, including:an inner gear and an outer gear; the inner gear having a plurality of external teeth, the plurality of external teeth having a contact surface and a opposite surface, the inner gear having a pitch circle, the contact surface having a point of inflection located on the pitch circle of the inner gear; the outer gear having a plurality of internal teeth for engagement with the external teeth of the inner gear, the inner teeth having a contact surface for engaging the contact surface of the external teeth of the inner gear, the outer gear having a pitch circle; and wherein, when the inner gear and outer gear are assembled for transmission of power from one of the gears to the other of the gears, the inner and outer gears undergo substantially radial engagement and point contact with the point of inflection of the external teeth engaging and rocking over only a point on the contact surface of the internal gear substantially where the pitch circle of the outer gear intersects the contact surface of the outer gear.