| 摘要 |
PROBLEM TO BE SOLVED: To provide a traveling reduction gear capable of shortening an axial dimension and attaining miniaturization of the whole of the traveling reduction gear and reduction of weight. SOLUTION: The traveling reduction gear 1 is provided with an axle housing 4 mounted to a truck frame 2; a hub 8 mounted with a sprocket 7 rotatably supported on the axle housing 4 through a bearing mechanism 5 provided with a plurality of balls 33, 36 and engaged with a crawler 6; and a decelerator 10 for decelerating inputted rotation power and transmitting it to the hub 8. Raceway track parts 34, 37 for guiding the balls 33, 36 are integrally formed on an outer peripheral part of the axle housing 4. COPYRIGHT: (C)2008,JPO&INPIT
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