1According to the SKF study cited in the text, what percentage of bearing failures are caused by contaminants such as water and particles mixing with the lubricant?
2What are the 'Five Rights of Lubrication' that serve as a path to lubrication reliability?
3Why are particles in the 1 µm to 4 µm range particularly dangerous for roller bearings?
4Which pressure condition causes the 'natural flow' to reverse during equipment shutdown, potentially drawing in contaminants?
5According to the article, what is a primary disadvantage of using traditional lip seals for bearing protection?
6Examination of wear patterns on failed bearings can help identify which of the following system problems?
7How does a compound labyrinth bearing isolator handle contaminants that enter the seal?
8What is the function of the 'axial throttling gap' in advanced isolator designs?
9Where is the static weep hole (condensate drain) typically located on a bearing isolator?
10What are the potential benefits of using a compound labyrinth seal as mentioned in the text?
