MILLWRIGHT BEARINGS PRACTICAL
ASSESSMENT AUTHENTIC QUESTIONS
AND CERTIFIED SOLUTIONS
●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 -Answer: d. the
jaws can be inserted behind the shoulder
●Main difference between adapter sleeve and withdrawal sleeve?
-Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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? -
Answer: Tapered
K-common 1-in-12 taper
K30 larger bearings
●A shield on bearing code is indicatd by? -Answer: Letter Z
Rubbing seal-RS
●P on bearing code indicates? -Answer: 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 -Answer: C. Top
●Solid bearings are frequently mounted in a _______ position
A. Awkward
B. Tight
C. Inverted
D. Delicate -Answer: 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
ASSESSMENT AUTHENTIC QUESTIONS
AND CERTIFIED SOLUTIONS
●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 -Answer: d. the
jaws can be inserted behind the shoulder
●Main difference between adapter sleeve and withdrawal sleeve?
-Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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 -Answer: 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? -
Answer: Tapered
K-common 1-in-12 taper
K30 larger bearings
●A shield on bearing code is indicatd by? -Answer: Letter Z
Rubbing seal-RS
●P on bearing code indicates? -Answer: 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 -Answer: C. Top
●Solid bearings are frequently mounted in a _______ position
A. Awkward
B. Tight
C. Inverted
D. Delicate -Answer: 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
