| 摘要 |
The present invention provides a chain guide which has good assembly work efficiency and also has high mechanical strength of the chain contact surface and small sliding resistance, and which, even when being brought into contact with a chain running at high speed, is difficult to wear and generates low noise and low vibration, and is also to provide a chain tensioner device using the chain guide. A roller 12, which is brought into contact with a chain 1, comprises a support shaft 13 supported by an opposing guide base 9 provided along the running direction of the chain 1, and roller bearings each of which has a steel outer ring 12a that is provided on the outer peripheral surface of the support shaft 13 so as to be brought into contact with the chain 1. The roller 12 is also configured so as to be assembled by respectively inserting opposite ends of the support shaft 13 into support recesses 14 respectively provided on mutually facing wall surfaces of the guide base 9. The roller 12, which is brought into contact with the chain 1, has a vibration damping material 17 accommodated between the support shaft l3 supported by the mutually facing side plate members 9 provided along the running direction of the chain 1, and the support recess 14 of each of the side plate members 9 respectively supporting opposite ends of the support shaft 13, and thereby vibration of the support shaft 13 is made difficult to be transmitted to the side plate member 9. |
