TPC 343 Bearings and Shaft Seal Maintenance Flashcards
The best way to determine the correct running clearance in a plain-bearing installation is to…
consult manufacturers charts and tables
TPC 343 p. 6
The ability of bearing material to flow slightly when loaded is called…
conformability
TPC 343 p. 7
The ability of bearing material to dissipate excessive heat generated during operation is called…
thermal conductivity
TPC 343 p. 7
An advantage of grease compared to oil in lubricating a plain bearing is that…
newly applied grease forces old lubricants out
TPC 343 p. 12
Discoloration in plain bearings is generally a symptom of…
excessive heat
TPC 343 p. 14
What should be used to measure the running clearance of a plain bearing?
feeler gauge
TPC 343 p. 6
What method should be used to remove moisture from a bearing shell after it has been cleaned?
preheating
TPC 343 p. 8
When building a plain bearing liner, coat the mandrel with ______ to keep molten babbit from clinging.
white lead
TPC 343 p. 9
What is the purpose of the grooves cut into a plain bearing liner?
circulate lubricant
What is the most likely cause of screeching from a plain bearing during operation?
clearances are too tight
TPC 343 p. 14
If you must leave your workplace temporarily, what care should you give a new, unmounted anti-friction bearing?
wrap it in oil resistant paper
TPC 343 p. 21
To prevent creeping of an inner bearing ring around the shaft, you should mount the inner ring with a(n) ______ fit.
interference
TPC 343 p. 23
You can force an anti-friction bearing into position on the shaft by using an arbor press or by impact, if the bearing has an OD of…
4 inches or less
TPC 343 p. 23
A bearing is driven up a split tapered adapter by…
tightening a heavy duty locknut
TPC 343 p. 26
At approximately what temperature should you begin to suspect a bearing problem?
185*F
TPC 343 p. 31
You clean an anti-friction bearing before installation if it…
will be lubed by auto oil-mist
TPC 343 p. 21
If the shoulder is too low when seating an anti-friction bearing on the shaft then the…
inner ring may distort
TPC 343 p. 22
When inspecting a tapered shaft by blueing the gauge bore, an ______% blueing transfer is acceptable.
80
TPC 343 p. 22
When cold mounting an anti-friction bearing, you must…
lube the bearing bore shaft with light oil
TPC 343 p. 23
What is not an approved way to heat a roller bearing for a temperature mount?
gas-operated torch