After a plain bearing has been pressed into the housing using check the inside diameter to see if it has been reduced or distorted due to the press fit
an arbor press, you should _______________________.
Select one:
ensure that the mating surfaces are clean
check the inside diameter to see if it has been reduced or
distorted due to the
press fit
re-bore the bushing for extra clearance
heat the plain bearing to seat it into the housing
Anti-friction bearings differ from plain bearings in that they incorporate rolling elements held between two raceways
_______________________.
Select one:
they incorporate rolling elements held between two raceways
anti-friction bearings require oil as a lubricant
plain bearings can operate at very low speeds with little or no
lubricant
anti-friction bearings only carry radial loads
,Bearing fatigue, which is identified by cracks and flaking of the spalling
race surfaces, is also known as _______________________.
Select one:
fretting
brinelling
fluting
spalling
During shift changes, incoming employees _______________________. must verify for themselves that the machinery has been locked out and de-energized
Select one:
must verify for themselves that the machinery has been locked
out and de-energized
may start working on the effected equipment
must notify the safety department that they are working on the
equipment
must unplug the machine and do a "power-up" test
Line shafts connecting a prime mover that transmits power to a power transmission shafts
number of machines is also known as _______________________.
Select one:
an axle
power transmission shafts
a stub shaft
a spindle
,Mechanical seals have been designed to _______________________. prevent leakage of fluids between rotating shafts and their housings
Select one:
prevent leakage of fluids between a static shaft and its
bearing
prevent leakage of fluids between a housing and its bearing
prevent leakage of fluids between rotating shafts and their
housings
prevent leakage of fluids between a static shaft and a static
housing
Prior to bearing installations _______________________. you need to check that the bearing is the correct type and size as per the manufacturer's
specifications
Select one:
you can select any bearing that has the same basic overall
dimensions
you need to check that the bearing is the correct type and
size as per the
manufacturer's specifications
you need to select a bearing that has the exact part number
and manufacturer
you can replace a roller bearing with the same size ball
bearing
, Prior to lubricating a tapered roller bearing _______________________. the slushing compound used to protect the bearing in storage needs not be removed
Select one:
the bearing should be cleaned by spinning the bearing with
an air gun
the bearing should be cleaned in a parts cleaner
the slushing compound used to protect the bearing in storage
needs not be
removed
bearings should be wrapped in paper towels when not in use
Roller bearings can carry heavier loads due to greater line contact
_______________________.
Select one:
point contact
greater line contact
angular contact
point-to-point contact
Taper bearings mounted with an interference fit into a housing may be cooled in a bath of alcohol cooled by dry ice
_______________________.
Select one:
must be heated by an induction heater
may be heated by an oven
may be cooled by a cool plate
may be cooled in a bath of alcohol cooled by dry ice
an arbor press, you should _______________________.
Select one:
ensure that the mating surfaces are clean
check the inside diameter to see if it has been reduced or
distorted due to the
press fit
re-bore the bushing for extra clearance
heat the plain bearing to seat it into the housing
Anti-friction bearings differ from plain bearings in that they incorporate rolling elements held between two raceways
_______________________.
Select one:
they incorporate rolling elements held between two raceways
anti-friction bearings require oil as a lubricant
plain bearings can operate at very low speeds with little or no
lubricant
anti-friction bearings only carry radial loads
,Bearing fatigue, which is identified by cracks and flaking of the spalling
race surfaces, is also known as _______________________.
Select one:
fretting
brinelling
fluting
spalling
During shift changes, incoming employees _______________________. must verify for themselves that the machinery has been locked out and de-energized
Select one:
must verify for themselves that the machinery has been locked
out and de-energized
may start working on the effected equipment
must notify the safety department that they are working on the
equipment
must unplug the machine and do a "power-up" test
Line shafts connecting a prime mover that transmits power to a power transmission shafts
number of machines is also known as _______________________.
Select one:
an axle
power transmission shafts
a stub shaft
a spindle
,Mechanical seals have been designed to _______________________. prevent leakage of fluids between rotating shafts and their housings
Select one:
prevent leakage of fluids between a static shaft and its
bearing
prevent leakage of fluids between a housing and its bearing
prevent leakage of fluids between rotating shafts and their
housings
prevent leakage of fluids between a static shaft and a static
housing
Prior to bearing installations _______________________. you need to check that the bearing is the correct type and size as per the manufacturer's
specifications
Select one:
you can select any bearing that has the same basic overall
dimensions
you need to check that the bearing is the correct type and
size as per the
manufacturer's specifications
you need to select a bearing that has the exact part number
and manufacturer
you can replace a roller bearing with the same size ball
bearing
, Prior to lubricating a tapered roller bearing _______________________. the slushing compound used to protect the bearing in storage needs not be removed
Select one:
the bearing should be cleaned by spinning the bearing with
an air gun
the bearing should be cleaned in a parts cleaner
the slushing compound used to protect the bearing in storage
needs not be
removed
bearings should be wrapped in paper towels when not in use
Roller bearings can carry heavier loads due to greater line contact
_______________________.
Select one:
point contact
greater line contact
angular contact
point-to-point contact
Taper bearings mounted with an interference fit into a housing may be cooled in a bath of alcohol cooled by dry ice
_______________________.
Select one:
must be heated by an induction heater
may be heated by an oven
may be cooled by a cool plate
may be cooled in a bath of alcohol cooled by dry ice
