| 摘要 |
PROBLEM TO BE SOLVED: To provide a bushing chain capable of sufficiently lubricating between a bushing and a pin. SOLUTION: The bushing chain 1 includes: inner links 4 having pairs of parallel inner plates 2, and cylindrical bushings 3 provided inserted in the inner plates 2; and outer links 7 having pairs of outer plates 5 disposed on the outside of the inner plates 2, and pins 6 provided inserted in the outer plates 5 and in the bushings 3. In the bush chain 1, the inner links 4 and the outer links 7 are alternately and endlessly connected. A first oil hole 10 extending in the axial direction is formed in each of the pins 6 with at least one end opened, and a second oil hole 11 is formed from inside each of the first oil holes 10 extending outward in the radial direction and opened toward each of inner faces 12 of the bushings 3. COPYRIGHT: (C)2011,JPO&INPIT |
