Sliding thrust bearing type
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Common sliding thrust bearings include fixed shells and tilting shells, with the fixed shells further divided into inclined plane types and stepped sector types. But in either case, that tile shape usually creates an oil wedge between the tile surface and the plane of the thrust ring. I would like to ask everyone: have you seen designs where several oil grooves are evenly distributed around the circumference of the thrust ring, while the thrust bearing itself has a smooth babbitt surface? What are the advantages and disadvantages of such an oil wedge design compared to the more common bearing configurations?
It’s not allowed, I think. At low speeds, direct planar contact is used; the alloy surface of the bearing shell has oil grooves. At high speeds, tilting pad bearings are generally employed, such as Michel or Kingsbury bearings. The alloy surfaces of the bearing shells have chamfers on either side to create oil wedges. I’ve never seen oil grooves made on thrust discs, but theoretically it should be possible. Personally, I think it’s better to make the cut on the tile, as the alloy surface is easier to adjust
Oil grooves are provided on the thrust disc; the oil moves within these grooves as the spindle rotates. I’m not sure what the effect of this is.