Industrial seal self study guide - SKF.com

12. A cocked seal can cause a seal lip to _________________ .
❑ a. leak
❑ b. groove the shaft
❑ c. both of the above
❑ d. neither of the above
13. If a seal’s lip shows premature wear _________________ .
❑ a. the seal may not be getting enough lubrication
❑ b. the shaft may be corroded
❑ c. the finish is too rough
❑ d. all of the above
14. The flange allows the Speedi-Sleeve to be _________________ eliminating
sleeve distortion.
❑ a. pushed on
❑ b. pulled on
❑ c. either of the above
❑ d. none of the above
15. When heat is enough to break down the oil, but not enough to harden the lip, sludge
accumulates and deposits on the _________________ .
❑ a. garter spring
❑ b. bore
❑ c. seal lip
❑ d. none of the above
16. Popular sealing lip synthetics in use today include _________________ .
❑ a. nitriles
❑ b. fluoroelastomers
❑ c. fluorocarbons
❑ d. all of the above
17. A cut lip seal may have been caused by _________________ .
❑ a. a damaged seal housing
❑ b. shaft discoloration
❑ c. a coked lube on the shaft
❑ d. a burr on the keyway
18. _________________, required by all HS type seals, provide axial compression
and supplement radial press-fit to ensure leakproof seals.
❑ a. Spring-Lock
❑ b. Spring-Kover
❑ c. Cover plates
❑ d. all of the above
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