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Sealing

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Answer all questions and select “View results” to get your evaluation.

For the answer options with a circle symbol, you can only choose one correct answer at a time.

For the answer options with a rectangle symbol, several answers can be correct.

1. What factors apply to the choice of seal?

2. Which inner seal has the highest frictional torque?

3. Which internal seals are the most waterproof?

4. Why is grease injected into the gap of the non-contact seal?

5. Seals are only necessary for oil lubrication, as they prevent oil leakage.

6. Which is the most effective non-contact sealing type?

7. Which properties make it the most effective non-contact seal type?

8. What are the characteristics of contact seals?

9. Contact seals are always made of synthetic rubber.

10. Which of the following contact seals is used in bearings with a two-piece housing?

11. Which contact seal has the highest permissible peripheral speed?

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