Oil filter cartridge

A filter cartridge configured to be removably inserted into a space of a filter housing that has a housing socket and a housing cover with a sealing surface facing inwards, the filter cartridge comprising:

• a filter element forming a fluid channel with a longitudinal axis, a front end, and a rear end;
• a connector element attached to the front end, wherein the connector element has at least
• a forward-facing side facing away from the front end in a forward direction that is parallel to or deviates from the longitudinal axis by an angle that is no larger than 30 degrees, and a rearward-facing side facing towards the filter element in a rearward direction,
• a peripheral surface with at least a first ring surface and a second ring surface, wherein the first ring surface is located closer to the rearward-facing side than the second ring surface;
• and
• a first fluid port in fluid communication with a first fluid opening, wherein the first fluid opening is in a radially outward facing surface of the filter cartridge;
• a second fluid port in fluid communication with the fluid channel;
• wherein the first ring surface and the second ring surface are plain bearing surfaces,
• wherein a gasket is movably supported in a first axial position on the first ring surface, thereby enabling a translation of the gasket in a first direction to a second axial position onto the second ring surface, and
• wherein:
• (i) a radius of the first ring surface is smaller than a radius of the second ring surface, and/or
• (ii) the gasket has a first portion with a first connector facing surface defining a first inner radius and a second portion with a second connector facing surface defining a second inner radius, wherein, if the gasket is in the first axial position,
• the first connector facing surface is located on the first ring surface and is closer to the second ring surface than to the second connector facing surface, and
• the first inner radius is greater than the second inner radius,
• and wherein the second inner radius of the second portion increases if the gasket is axially shifted from the first axial position into the second axial position.