| 摘要 |
A tensioner comprising a base having a sleeve, an arm pivotally engaged with the sleeve, a spring engaged between the arm and the base, a pulley journalled to the arm, an adjuster engaged with the sleeve for rotationally adjusting a position of the sleeve on a mounting surface, three or more concentric cylindrical bushings, each bushing frictionally engaged with the arm and the sleeve for damping an arm movement, and the cylindrical bushings suitable for operation in lubricant. |
