| 摘要 |
A gas bearing part (2) is provided, having gas supply means (8, 4) which open into a recessed working surface (6) which can be placed opposite a carrier plate (1) to permit formation of a gas bearing (7) relative to the carrier plate. To obtain a friction-free movement, also with application of higher gas pressures the roughness of the working surface is less than 10 ru, preferably less than 4 ru. The working surface (6) is further essentially conically recessed, whereby the tip of the conical recess is essentially in the centre of the surface. |
