The SURE-flex elastomer coupling do not need for lubrication.
The standard material for the flexible sleeves is PROCUPLAN in two version JX (monoblock) and JXC (open version). Its high torsional elasticity provides the installation with a low natural frequency.
Together with its capacity to dampen vibration SURE-flex is a very appropriate selection for application with reciprocating-equipment such as when engine driven.
HYTREL material can also be supplied upon request. This type of sleeve has a torque carrying capacity which is 4 time higher but with a reduced torsional flexibility.
Admitted operating temperature range from -40°C to +90°C.