Millwright. Bearings 2023/2024 Questions and Answers
Complete
Two kinds of flat bearings differ from there housings they are
A. Solid end of friction
B. Tight and tapered
C. Scored and roller
D. Solid and split
D. Solid and split
**The choice of bearing tens of the load rotational speed direction of Pull and support
design solid bearings and split bearings are fiction bearings
You can remove bearing cups from a housing using a cup puller (inside puller)
provided that?
a. it is a tapered roller bearing
b. it is an anto froction bearing
c. it is a bearing on a positive set
d. the jaws can be inserted behind the shoulder
d. the jaws can be inserted behind the shoulder
Main difference between adapter sleeve and withdrawal sleeve?
withdrawal sleeve used on solid bored bousing and adapter sleeve used on split bored
housing
A replacement bearing sucha s tapered roller or angular contact bearing has it
end float controlled by?
a. collar
b. shaft shoulder
c. chamfer
d. shims
d. shims
When installing a hot bearing on a shaft move it __________ into its final position.
a. slowly
b. in a rolling fashion
c. clockwise
d. quickly
d. quickly
When mounting spherical roller bearings the first step is to?
a. check the reduction is radial clearance of the bearing to ensure proper installed
clearance exists
b. check the reduction is radial clearance of the bearing to ensure proper
installed clearance exists
c. The outer face of the sleeve needs to be tapered
d. check the initial clearance by inserting a feeler gauge between top rollers and
outer ring
e. check the initial clearance by inserting a feeler gauge between top rollers and
inner ring
,d. check the initial clearance by inserting a feeler gauge between top rollers and outer
ring
Mounted tapered Bore bearings using hydraulic nut--check the reduction is radial
clearance of the bearing to ensure proper installed clearance exists
Ball bearings using tapered SLEEVE--check the reduction is radial clearance of the
bearing to ensure proper installed clearance exists
The use of a tapered adapter sleeve allows you to?
a. rotate at higher speeds
b. rotate at higher velocity
c. increase end play
d. mount a bearing anywhere on a standard shaft
d. mount a bearing anywhere on a standard shaft
Thrust control can be obtained by using a single taper roller bearing or a singular
contact bearing on one end and?
a. adjusting shrink
b. using matched duplex on other end of shaft
c. allowing other end to float
d. allowing other end to travel
c. allowing other end to float
Thrust adjustment for angular contact or tapered bearings are made in two ways.
1. adjust inner race or cone when the outer race or cup is fixed in the housing
2. adjust snap ring and end play
3. adjust outer race or cup when the inner race or cone id fixed on the shaft
4. locate bearing stabalizer and adjust face plate
a. 1,2
b. 2,3
c. 1,3
d. 2,4
c. 1,3
In most cases the outer race is adjusted by means of an end cover or shims
Adding shims increases end float
removing shims decreases end float
How do you prevent end float in fixed bearings?
a. only one bearing on any shaft assembly should be fixed axially in the housing
b. both bearings on any shaft assembly should be fixed axially in the housing
c. install with shrink fit
d. install with press fit
a. only one bearing on any shaft assembly should be fixed axially in the housing.
Generally better to "held" or fix bearing on drive end and all other bearings should have
, axial clearance to allow movement. This allows for expansion and contraction (free or
flaoting bearings)
This stretches the inner ring of the bearing and reduces the internal clearance
a. press fit
b. shrink fit
c. seizing
d. press or shring fit
d. press or shrink fit
In replacing a tapered roller or angular contact bearing, after they have cooled
during heating check them for a possible gap between the?
a. shaft and housing
b. shaft shoulder and the cone or inner ring
c. collar and cone
d. face and cone
b. shaft shoulder and the cone or inner ring
*May be necessary to press bearing ring tight against shoulder
K inducates what on the end of bearing identification?
Tapered
K-common 1-in-12 taper
K30 larger bearings
A shield on bearing code is indicatd by?
Letter Z
Rubbing seal-RS
P on bearing code indicates?
Small tolerance:P6 indicates large tolerance
The type of friction bearing called solid bearing is designed to be used in
locations where the load is applied to the
A. bottom
B. Side
C. Top
D. Axel
C. Top
Solid bearings are frequently mounted in a _______ position
A. Awkward
B. Tight
C. Inverted
D. Delicate
C. Inverted
Another type of friction bearing called split bearing has a two bolt pattern and a
four bolt pattern bearing. The two bolt is used for _________ and medium loads
A. Light
B. Heavy
C. Super light
D. Metal
Complete
Two kinds of flat bearings differ from there housings they are
A. Solid end of friction
B. Tight and tapered
C. Scored and roller
D. Solid and split
D. Solid and split
**The choice of bearing tens of the load rotational speed direction of Pull and support
design solid bearings and split bearings are fiction bearings
You can remove bearing cups from a housing using a cup puller (inside puller)
provided that?
a. it is a tapered roller bearing
b. it is an anto froction bearing
c. it is a bearing on a positive set
d. the jaws can be inserted behind the shoulder
d. the jaws can be inserted behind the shoulder
Main difference between adapter sleeve and withdrawal sleeve?
withdrawal sleeve used on solid bored bousing and adapter sleeve used on split bored
housing
A replacement bearing sucha s tapered roller or angular contact bearing has it
end float controlled by?
a. collar
b. shaft shoulder
c. chamfer
d. shims
d. shims
When installing a hot bearing on a shaft move it __________ into its final position.
a. slowly
b. in a rolling fashion
c. clockwise
d. quickly
d. quickly
When mounting spherical roller bearings the first step is to?
a. check the reduction is radial clearance of the bearing to ensure proper installed
clearance exists
b. check the reduction is radial clearance of the bearing to ensure proper
installed clearance exists
c. The outer face of the sleeve needs to be tapered
d. check the initial clearance by inserting a feeler gauge between top rollers and
outer ring
e. check the initial clearance by inserting a feeler gauge between top rollers and
inner ring
,d. check the initial clearance by inserting a feeler gauge between top rollers and outer
ring
Mounted tapered Bore bearings using hydraulic nut--check the reduction is radial
clearance of the bearing to ensure proper installed clearance exists
Ball bearings using tapered SLEEVE--check the reduction is radial clearance of the
bearing to ensure proper installed clearance exists
The use of a tapered adapter sleeve allows you to?
a. rotate at higher speeds
b. rotate at higher velocity
c. increase end play
d. mount a bearing anywhere on a standard shaft
d. mount a bearing anywhere on a standard shaft
Thrust control can be obtained by using a single taper roller bearing or a singular
contact bearing on one end and?
a. adjusting shrink
b. using matched duplex on other end of shaft
c. allowing other end to float
d. allowing other end to travel
c. allowing other end to float
Thrust adjustment for angular contact or tapered bearings are made in two ways.
1. adjust inner race or cone when the outer race or cup is fixed in the housing
2. adjust snap ring and end play
3. adjust outer race or cup when the inner race or cone id fixed on the shaft
4. locate bearing stabalizer and adjust face plate
a. 1,2
b. 2,3
c. 1,3
d. 2,4
c. 1,3
In most cases the outer race is adjusted by means of an end cover or shims
Adding shims increases end float
removing shims decreases end float
How do you prevent end float in fixed bearings?
a. only one bearing on any shaft assembly should be fixed axially in the housing
b. both bearings on any shaft assembly should be fixed axially in the housing
c. install with shrink fit
d. install with press fit
a. only one bearing on any shaft assembly should be fixed axially in the housing.
Generally better to "held" or fix bearing on drive end and all other bearings should have
, axial clearance to allow movement. This allows for expansion and contraction (free or
flaoting bearings)
This stretches the inner ring of the bearing and reduces the internal clearance
a. press fit
b. shrink fit
c. seizing
d. press or shring fit
d. press or shrink fit
In replacing a tapered roller or angular contact bearing, after they have cooled
during heating check them for a possible gap between the?
a. shaft and housing
b. shaft shoulder and the cone or inner ring
c. collar and cone
d. face and cone
b. shaft shoulder and the cone or inner ring
*May be necessary to press bearing ring tight against shoulder
K inducates what on the end of bearing identification?
Tapered
K-common 1-in-12 taper
K30 larger bearings
A shield on bearing code is indicatd by?
Letter Z
Rubbing seal-RS
P on bearing code indicates?
Small tolerance:P6 indicates large tolerance
The type of friction bearing called solid bearing is designed to be used in
locations where the load is applied to the
A. bottom
B. Side
C. Top
D. Axel
C. Top
Solid bearings are frequently mounted in a _______ position
A. Awkward
B. Tight
C. Inverted
D. Delicate
C. Inverted
Another type of friction bearing called split bearing has a two bolt pattern and a
four bolt pattern bearing. The two bolt is used for _________ and medium loads
A. Light
B. Heavy
C. Super light
D. Metal
