Hydrodynamic slide bearing

1. A hydrodynamic slide bearing ( 10 , 10 ′) for supporting a shaft ( 14 , 14 ′) that is rotatable in a rotation direction about an axis, the slide bearing ( 10 , 10 ′) comprising:

a plurality of bearing segments ( 12 , 12 ′) arranged next to one another in the rotation direction ( 22 , 22 ′), wherein the bearing segments ( 12 , 12 ′) have segment surfaces that together form a running surface ( 16 , 16 ′) for facing a surface of the shaft ( 14 , 14 ′) the segment surface of at least one of the bearing segments ( 12 , 12 ′) having a plurality of grooves ( 26 , 26 ′) oriented substantially transverse to the rotation direction ( 22 , 22 ′), wherein:

each of the grooves ( 26 , 26 ′) has a front groove edge ( 262 ) and a rear groove edge ( 261 ) disposed relative to one another so that a point moving along the respective segment surface in the rotation direction first passes an intersection of the segment surface with the front groove edge ( 262 ) and then passes an intersection of the segment surface with the rear groove edges ( 261 ),

the rear groove edge ( 261 ) of each of the grooves ( 26 , 26 ′) is orientated obliquely to a rear radial plane ( 24 , 24 ′) that passes through both the axis and the rear groove edge ( 261 ), and each of the rear groove edges ( 261 ) is undercut in relation to the rear radial plane ( 24 , 24 ′), and

the front groove edges ( 262 ) of each of the grooves ( 26 , 26 ′) is oriented obliquely to a front radial plane ( 24 , 24 ′) that passes through both the axis and the front groove edge ( 262 ) and, each of the front groove edges ( 262 ) is not undercut in relation to the front radial plane ( 24 , 24 ′).

2. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , wherein the undercut rear groove edges ( 261 ) are arranged at an angle of 5° to 20° relative to the rear radial plane ( 24 , 24 ′).

3. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , wherein the grooves ( 26 , 26 ′) are arranged in a groove arrangement region ( 28 , 28 ′) that, in the rotation direction ( 22 , 22 ′), begins at 60% to 65% of the segment length and ends at 90% to 95% of the segment length.

4. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 3 , wherein the grooves ( 26 , 26 ′) are arranged in a groove arrangement region ( 28 , 28 ′) that extends over a central 60% to 90% of the segment width.

5. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 3 , wherein the grooves ( 26 , 26 ′) occupy 10% to 60% of an area of the groove arrangement region ( 28 , 28 ′).

6. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , wherein at least some of the grooves ( 26 , 26 ′) are interrupted in their longitudinal extension direction.

7. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 6 , wherein two of the grooves ( 26 , 26 ′) that are adjacent in the rotation direction have their interruptions arranged with respect to each other with an offset transverse to the rotation direction ( 22 , 22 ′).

8. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , wherein the running surface ( 16 ′) is planar and is oriented perpendicular to the axis and wherein the bearing segments ( 12 ′) are formed as circle ring sectors.

9. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , wherein the running surface ( 16 ) is curved and oriented coaxial to the axis and the bearing segments ( 12 ) are formed as hollow cylinder sectors.

10. The hydrodynamic slide bearing ( 10 , 10 ′) of claim 1 , further comprising oil supply regions ( 18 , 18 ′) that extends transverse to the rotation direction ( 22 , 22 ′), at least one of the oil supply regions being disposed between every two adjacent bearing segments ( 12 , 12 ′), thereby separating the adjacent bearing segments ( 12 , 12 ′).