Industrial seal self study guide - SKF.com

5. When considering seals and wear sleeves for a large diameter shaft, it is possible to
_________________ .
❑ a. machine the shaft to a reduced diameter for
use with the wear sleeve and original size seal.
❑ b. Apply the .094” thick (2.4mm) wear sleeve and
use a larger sized seal.
❑ c. both of the above
❑ d. none of the above
v
6. _________________ is the most popular material for the majority of sealing
applications today.
❑ a. Leather
❑ b. Felt
❑ c. Nitrile
❑ d. Silicone
7. Waveseals _________________ .
❑ a. generate less heat
❑ b. reduce shaft wear
❑ c. provide greater lip lubricant
❑ d. all of the above
8. The seal is ready to be installed in the bore once the shaft and bore have been
checked and cleaned, and the seal has been _________________ .
❑ a. pre-lubricated
❑ b. split
❑ c. vulcanized
❑ d. none of the above
9. Two metal clad seals (Type HDS), back to back or in tandem,
❑ a. provide extra-duty sealing
❑ b. are less expensive than a double seal
❑ c. install easier than a double seal
❑ d. all of the above
10. _________________ seals are the basic type large diameter seals.
❑ a. HDS metal clad (all-rubber)
❑ b. HS non-metal clad (all-rubber)
❑ c. Both of the above
❑ d. None of the above
11. Type _________________ has two opposing sealing elements in a single shell,
making it ideal for separating two fluids in applications where two seals are impractical.
❑ a. HDSA
❑ b. HDSD
❑ c. both of the above
❑ d. none of the above
95