Piston engine belt or chain tensioning extends the belt or chain service life

摘要

A tensioning device (1) for a chain or belt consists of a mechanical assembly (2) with a swivel tensioning arm (4). The arm (4) is spring-supported by a rotating tension roller (8a), tensioning a strap or chain (23). The tension roller (8a) is attached to the arm (4) by a bolt (12), over which the inner bearing ring (14) is axially pressed against the arm (4) surface (11a).