| 摘要 |
A sealing ring intended in particular for a piston rod of circular cross-section is of height (H) in the axial direction and has a surface (2a) oriented towards a sliding surface (4). The surface (2a) is cylindrical over part (2b) of the height (H) to form a sealing surface (2b), and broadens over a further part (2c). The sealing ring seals very effectively in the axial direction, so that a large proportion of the gas flows out between the piston rod and sealing surface (2b) and creates a gas bearing.
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