LUBR 6002 - Types of Bearing Lubrication (Chp 31) Flashcards
A thrust bearing:
A) Should rotate opposite to the shaft B) Prevents axial movement of the shaft C) Must be installed on both ends of the shaft D) Prevents radial movement of the shaft E) Has a volute casing
B) Prevents “axial movement”of the shaft
A “Kingsbury bearing” is which type of bearing?
A) Journal bearing B) Anti-friction bearing C) Thrust bearing D) Sleeve bearing E) Shell bearing
C) Thrust bearing
Damage to bearings due to vibration while stationary is called:
A) False brinelling B) Arcing C) Fretting D) Pitting E) Corrosion
A) False brinelling
Ring oiled bearings use metal rings to:
A) Lubricate several bearings at once B) Feed oil hydrostatically to bearings C) Draw oil up from a sump to the bearing D) Feed oil by gravity to bearings E) Position bearings on shafts
C) Draw oil up from a sump to the bearing
A thrust bearing that does not utilize the oil wedge principle of lubrication is the:
A) Kingsbury type B) Flotation type C) Collar type D) Michell type E) Vertical type
C) Collar type
When replacing or removing an anti-friction ball bearing, the applied force should:
A) Always be against the outer race
B) Always be against the inner race
C) Be made only after heating the bearing
D) Be applied suddenly and fully
E) Not be transmitted through the bearing balls
E) Not be transmitted through the bearing balls
A type of anti-friction bearing is the _____ bearing.
A) Sleeve B) Journal C) Ball D) Spiral E) Elliptical
C) Ball
The key difference between fluid film lubrication and boundary lubrication is:
A) Grease is a good lubricant for fluid film lubrication
B) Fluid film lubrication actually keeps the rotating surfaces separated
C) There is no real difference between them
D) The oil needs to be under pressure to make boundary lubrication work
E) Boundary lubrication only carries away heat build-up
B) Fluid film lubrication actually keeps the rotating surfaces separated
