These are:
– Effort created by mechanical spring
– Effort created by oil pressure, which also acts as a damper
– Damping by oil supplied without pressure. Non-return valve
– Lubrication hole in the tensioning pad for chain lubrication and aeration
– Nonreturn mechanism to limit the reverse travel
– Device to return the tensioner without the need to dismantle.
– Tensioner with rubber pad for direct contact with chain
– Double piston for simultaneous tensioning/damping of several chains