Chain construction

A chain construction for a freezing installation of an ice cream production facility, the chain construction comprising:

• a plurality of chain links, where the separate chain links are coupled together in the chain construction by pairs of primary fishplates, where the primary fish plates are provided with apertures in either end;
• a bushing construction including bushings disposed in the apertures at either end of the primary fishplates;
• a chain pin for connecting adjacent chain links via the primary fish plates, where the chain pin is inserted through the bushing along an axis, such that play between the fishplates and the chain links is provided, where the bushing construction in a cross section orthogonal to the axis has a circular cross section;
• and
• a resilient sleeve arranged around the chain pin, where the chain pin has a flat face along the axis, and the resilient sleeve has a corresponding flat face in engagement with the flat face of the pin, and where an outer periphery of the resilient sleeve, when mounted on the chain pin, has a non-circular cross section, such that a free space is provided between the outer periphery of the resilient sleeve and an inside of the bushing;
• wherein the resilient sleeve is made from a polymer material having a Shore D hardness between 65 and 95;
• wherein a relative movement of adjacent chain links, allowed by the play and the free space, provides that ice formed in the free space is crushed between the resilient sleeve and the bushing.