Rim and face alignment Flashcards

1
Q

What are 2 types of misalignment

A

offset(parallel)

angular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are 3 basic types of coupling for alignment

A

rigid
flexible
special purpose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

coupling that provides a fixed union, therefore you must accurately align for smooth operation

A

rigid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

coupling that is the most common and allows for minor misalignment

A

flexible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

coupling that is completely unique in that some require accurate alignment and others require a set amount of misalignment

A

special purpose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are 4 consequences of shaft misalignment

A

seal damage
increased bearing load
vibration
downtime

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

the condition where piping fastened to a piece of equipment stresses the housing

A

pipe strain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

the situation where weight distribution is not equal on all supports

A

soft foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are the 3 cases of soft foot

A

parallel
angular heel
angular toe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

the situation when the shaft or coupling is not concentric to its axis

A

runout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

the situation when a shaft moves axially

A

end float

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

measurement of how gravity affects dial reading

A

dial bar sag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

to measure dial bar sag, the dial needs to be placed on a

A

mandrel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

to validate a setup by rotating both dials 360 degrees

A

sweep reading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

tir stands for

A

total indicated reading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Bearing life on a machine will decrease drastically if misalignment exceeds _____ inch per inch of coupling length

A

0.0002

17
Q

A magnetic spirit level is used to

A

ensure shafts are rotated an exact amount between readings

18
Q

When using dial bar sag, axial sag applies only to

A

face readings

19
Q

When a very thin film of fluid is trapped between the rough surface of the shaft and the lip of the seal it is known as a ______ seal

A

hydrodynamic

20
Q

When using dial bar sag, radial sag applies only to

A

rim readings

21
Q

how to place dial gauge to measure pipe strain

A

2 gauges 90 degrees apart on rim