AME

Card Set Information

Author:
Luker
ID:
115603
Filename:
AME
Updated:
2011-11-09 23:04:03
Tags:
T12 Bearings Seals
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Description:
Bearings and Seals
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  1. What are the 3 most common types of bearings?
    Plain, Anti friction and elastomeric
  2. Name 2 types of bearing loads?
    Radial, and thrust
  3. which way is a radial load relative to the shaft running through the shaft?
    moves perpendicular
  4. which way is a thrust load?
    due to axial movement on the shaft
  5. Name 4 advantages of Plain bearings?
    • little space,
    • low cost
    • quite operation
  6. Disadvantage of plain bearings?
    • High friction
    • requires contionious lubercation
  7. What are babbit bearings most commonly used for?
    Crackshafts
  8. which type of bearing hold luberication the best?
    sintered metal bearing
  9. Name 3 factors that determine the load carrying capacity of a bearing?
    • Size of the bearing
    • # of rolling elements
    • the types of races
  10. Name 5 types of antifriction bearings?
    • tapered rollers
    • needle rollers
    • ball
    • spherical rollers
    • cylindrical rollers
  11. what are some advantages to antifriction bearings/
    • low friction
    • can be packed to reduce frequency of luberication
    • versatile because of many designs
  12. Name some disadvantages to anti friction bearings?
    • Requires more space than plain bearings
    • Noiser
    • higher cost
    • less rigid than plain bearings
  13. What are the 4 basic loads of ball bearings ?
    • Radial
    • radial thrust load
    • self aligning, radial load
    • thrust load
  14. What are the primary functions of bearings?
    • Support moving parts
    • Reduce friction
    • Reduce ware
    • Provides replacable wear surfaces
  15. What bearings support heavy loads perpendicular to the shaft?
    Roller Bearings
  16. Define face to face
    back to back
    face to back
    • -inner race of thrust faces contact
    • -deep shoulder takes thrust
    • -installed in tandem
  17. How do you install a bearing on a shaft?
    apply pressure to the inner race
  18. Name 5 types of defects on bearings
    • Brinell
    • False Brinelling
    • pitting
    • Smearing
    • Corrosion
  19. how do you install a bearing on the inside diameter?
    Apply pressure on the outside race
  20. How do you install bearings in a pinch fit application?
    Heat housing and chill the bearing
  21. How can you pre-heat a housing?
    Induction, electric heaters, oil bath, oven (no open flame)
  22. How are bearings held in place?
    Roll staking
  23. Which bearing can accept radial, axial and torsional loads?
    Elastromeric
  24. Advantages of Elastromeric bearings?
    • No lube
    • No dissambely required on inspection
    • Cannot sieze
    • no brinelling, pitting, galling
  25. What can cause corrosion in elastromeric bearings?
    oil
  26. Name 4 types of damage that can occour to elastromeric bearings?
    • heat
    • fatigue
    • oil contamination
    • Forign Damage
  27. Name 4 types of Dynamic seals?
    • Radial Lip seal
    • Clearence Seals
    • Face Seals
    • Ring Seals
  28. Name 3 types of static seals?
    • Non Metallic gaskets
    • Metallic Gaskets
    • Performed Packing
  29. Which seal is installed in high heat applications?
    labyrinth
  30. Name the Dynamic Seals?
    • O-Ring
    • Labyrinth
    • Double Lip
    • piston Ring
    • Carbon Face
  31. Name the Static Seals?
    • Crushed washer
    • Cheveron
    • Boss O-Ring
    • Carbon Face

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