Millwright. Bearings
__________ fit means that a bearing is installed by hand without mechanical aids.
A. Press fit
B. Interference fit
C. Stay fit
D. Clearance fit - CORRECT ANSWER-A. Press fit
** this method may be used whenever the bearing can be held in place by
mechanical aids such as snap rings
__________ Is very slow rotation of a push that bearing race one rotation of that ring
requires several million revolutions of the rest of the bearing
A. Check
B. Creep
C. Twist
D. Rotation - CORRECT ANSWER-B. Creep
________________ bearings are used where seal will keep out solids and fluids
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-d. sealed
,_________________ bearings are used where foreign material is kept out of shaft
by lip seals or the equivalent
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-c. open
___________________ bearings are used where the shield will keep out solids but
not liquids
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-a. shielded
****When selecting liner material it should be softer than shaft material so it to form
slightly under heavy loads of good coefficient of friction wear resistant good,
conductor and readily available*** - CORRECT ANSWER-Metallic liner materials
must have a little coefficient of expansion
A ___________ bearing is used as positioning device or guide for linear motion. It is
used for such things as machining tools and gas compressors
a. guide bearing
b. shoe bearing
c. bushings
d. Kingsbury bearing - CORRECT ANSWER-a. guide bearing
,A dark coloured bearing is an indication of
A. Over heating
B. Cold freezing
C. Rubbing
D. Slip race needed adjusting - CORRECT ANSWER-A. Over heating
A flange bearing has its base __________ degrees to the shafts
A. 120
B. 45
C. 50
D. 90 - CORRECT ANSWER-D. 90*
The inner ring element and outter ring of flange bearings are supplied as a unit.
Called a cartridge
A journal bearing controls what kind of shaft motion
A. Axial
B. Vertical
C. Angular
D. Radial - CORRECT ANSWER-D. Radial
, A mandrel is used to shape and size
A. Keys
B. Brakes
C. Bearings
D. Slots in bearings - CORRECT ANSWER-C. Bearings
**A mandrel often called dummy shaft
A pure thrust or axial load means that there is no
a. seals
b. radial load
c. speed point
d. thrust load - CORRECT ANSWER-b. radial load
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 - CORRECT ANSWER-d. shims
A round depression worn into the raceway by a rolling member is referred to as
__________ fit means that a bearing is installed by hand without mechanical aids.
A. Press fit
B. Interference fit
C. Stay fit
D. Clearance fit - CORRECT ANSWER-A. Press fit
** this method may be used whenever the bearing can be held in place by
mechanical aids such as snap rings
__________ Is very slow rotation of a push that bearing race one rotation of that ring
requires several million revolutions of the rest of the bearing
A. Check
B. Creep
C. Twist
D. Rotation - CORRECT ANSWER-B. Creep
________________ bearings are used where seal will keep out solids and fluids
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-d. sealed
,_________________ bearings are used where foreign material is kept out of shaft
by lip seals or the equivalent
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-c. open
___________________ bearings are used where the shield will keep out solids but
not liquids
a. shielded
b. closed
c. open
d. sealed - CORRECT ANSWER-a. shielded
****When selecting liner material it should be softer than shaft material so it to form
slightly under heavy loads of good coefficient of friction wear resistant good,
conductor and readily available*** - CORRECT ANSWER-Metallic liner materials
must have a little coefficient of expansion
A ___________ bearing is used as positioning device or guide for linear motion. It is
used for such things as machining tools and gas compressors
a. guide bearing
b. shoe bearing
c. bushings
d. Kingsbury bearing - CORRECT ANSWER-a. guide bearing
,A dark coloured bearing is an indication of
A. Over heating
B. Cold freezing
C. Rubbing
D. Slip race needed adjusting - CORRECT ANSWER-A. Over heating
A flange bearing has its base __________ degrees to the shafts
A. 120
B. 45
C. 50
D. 90 - CORRECT ANSWER-D. 90*
The inner ring element and outter ring of flange bearings are supplied as a unit.
Called a cartridge
A journal bearing controls what kind of shaft motion
A. Axial
B. Vertical
C. Angular
D. Radial - CORRECT ANSWER-D. Radial
, A mandrel is used to shape and size
A. Keys
B. Brakes
C. Bearings
D. Slots in bearings - CORRECT ANSWER-C. Bearings
**A mandrel often called dummy shaft
A pure thrust or axial load means that there is no
a. seals
b. radial load
c. speed point
d. thrust load - CORRECT ANSWER-b. radial load
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 - CORRECT ANSWER-d. shims
A round depression worn into the raceway by a rolling member is referred to as
