Lubrication insert for lubricating spindle bearings

A lubrication insert (7), in particular for lubricating spindle bearing (2), comprising:

• a. an elongated body (20) having a front end (34) and a back end (35) apart from each other and a curved circumferential surface extended between the front end (34) and the back end (35), wherein an oil inlet (21) is provided at the front end (34) for connecting an oil supplying hose (3) for supplying the oil into the oil inlet (21), wherein at least one lubrication orifice (30) is provided on the circumferential surface for distributing the oil in the radial direction, wherein an oil channel (31) is formed inside the body (20) for connecting the oil inlet (21) and the lubrication orifice (30);
• b. at least one sealing element (11, 12), in particular in the form of at least one O-ring, mounted on the outer surface of the body (20) and positioned around the circumferential surface;
• and
• c. a connecting element (10) which is allocated to the body (20) by an allocation mechanism, and the sealing element (11, 12) is pressed in the axial direction by the connecting element (10) when the connecting element (10) is allocated to the body (20).