The invention provides a piston and cylinder unit whose piston rod is sealed by a supporting and sealing arrangement arranged in an end cap of the unit. This supporting and sealing arrangement comprises a sealing portion made integrally with a stripper portion and joined therewith to form a sleeve-like sealing member surrounding the piston rod having the said portions at its ends. A lubricant-permeable supporting bushing encompassing the piston rod is mounted in the sealing member between the sealing and stripper portions and receives lubricant from lubricant reservoirs in the part of the sealing member between the stripper and sealing portions.
