BELT TENSIONER

摘要

A tensioner for tensioning a belt includes a support housing (12) that defines, at least in part, a spring cavity (16), and an arm (14) pivotably attached to the support housing (12). A spring (18) is disposed in the spring cavity (16) and is operatively connected to the arm (14) and support housing (12) to bias the arm to pivot relative to the support housing. The spring (18) is a round wire coil spring having an unloaded axial height (h) wherein the spring cavity (16) has a height (H) greater than the unloaded axial height (h) of the spring (18).