PULLEY TENSIONER FOR AN OIL WET BELT DRIVE

摘要

A tensioner (1) for a belt drive, comprises a base (2) defining an axis (A), a mobile eccentric element (3) hinged about axis (A) and loaded by a spring (5), a pulley (4) idly connected to the mobile element (3). Specifically, the pulley (4) defines a single body with the external ring of a rolling bearing (6) mounted on the mobile element (3) and the spring (5) is helical and presents a square or rectangular cross section.