The ornamental design for a half slidebearing, as shown and described.
FIG. 1 is a perspective view of a half slide bearing;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a cross-sectional view thereof taken along line 7-7 in FIG. 5; and,
FIG. 8 is a detailed perspective view of a right side portion in F1G. 1.
The broken lines in the drawings are intended to show portions of the half slide bearing that are not being claimed, and thus form no part of the claimed design.