| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gear device capable of surely preventing entering of foreign matters such as abrasion powder generated in the gear device into a sealing device and capable of exhibiting suitable sealing performance even in a severe operation specification or environment. <P>SOLUTION: The gear device is provided with an internal gear 103, an external gear 107 meshed with the internal gear, a crankshaft 109 engaged with the external gear and eccentrically rocking it, a support body 111 rotatably supporting the crankshaft, a pair of bearings 113 and 114 disposed between an inner peripheral surface of the internal gear and an outer peripheral surface of the support body and arranged on axial both sides of the external gear, and the sealing device 116 disposed between the inner peripheral surface of the internal gear and the outer peripheral surface of the support body and arranged on the axial direction outer side of at least one of the pair of the bearings, and the internal gear and the support body are relatively rotated. A plate 136 equipped with a foreign matter removing lip 130 is held in the axial direction by the support body and the one bearing, and the foreign matter removing lip is abutted to a side surface of the sealing device. <P>COPYRIGHT: (C)2009,JPO&INPIT |
