In a belt drive (1) of an internal combustion engine (3), a two-arm belt tensioner (16) has a fixed tubular supporting portion (20); a first (24) and a second (23) arm fitted to the tubular supporting portion (20) to rotate about a common hinge axis (21), ...

In a drive assembly (8; 52) for driving a pulley (10) of a water pump (7) of a combustion engine (1), a movable supporting arm (15) is fitted idly with a drive wheel (16), and is loaded by a torsion spring (30) to bring the drive wheel (16) into angular en...

Described herein is an integrated pulley-torsional damper assembly (2, 2', 2'', 2''') provided with a hub (11) designed for being rigidly connected to a drive member (4), a pulley (7), which is radially supported by the hub (11) and can be used for transmi...