A pseudo-absolute position of a rotating axis is sensed at a desired resolution by employing a single absolute encoders of a resolution that is lower than the desired resolution in combination with a home position sensor that is activated by a home position actuator attached to the axis. A first set of removable tabs is connected to the base so that removal of the first set of removable tabs forms a first set aperture, and a second set of removable tabs is connected to the base so that removal of the second set of removable tabs forms a second set aperture. The body has one or more through holes communicating with upstream and downstream portions of the lubrication circulation system. The suction body has a hollow cylindrical configuration. The position of the moveable member controls the flow in the flow chamber. The packaging is constituted by a single peelable type film consisting of an oriented polyamide layer coupled with a coextruded peelable polyethylene layer, said film being folded once on the polyethylene layer side in order to form the inner part of said packaging.