SEALING ARRANGEMENT

A sealing arrangement (20) comprising an elastomeric O-ring (26) radially compressed in an annular passage (28) between a shaft (24) and a bore (22) extending along a longitudinal axis (X), the shaft (24), in use, reciprocally axially translating relative to the bore (22) and, the sealing arrangement (20) is adapted to force the O-ring (26) to roll on the shaft (24) and on the bore (22) when the shaft (24) translates relative to the bore (22).