The gondolas of a series of large (1MW) windmills were revolving on bronze segments, bolted to the tower.
To keep them in good condition a continuous grease supply was installed but their operational life was short.
The grease appeared not to reach the contact areas where it was needed the most and the
bronze segments appeared to ‘hammer-out’.
To solve this problem D-glide segments according to the same design replaced the original segments.
Grease is no longer needed for a smooth operation and because all deformation is elastic the segments do not ‘hammer-out’.
Grease is still applied to prevent corrosion of the surrounding steel parts but the volume has been reduced to
5 percent of the original volume.
Advantages of the D-Glide solution
- Long bearing life
- Significant Reduction of grease usage
- Smooth operation