CHAIN AND SPROCKET DRIVE Flashcards
A drive system consists of an endless
chain whose links engage the teeth of
sprocket keyed to the shaft of the
driving and driven mechanism that is
commonly used for power tiller
transmission boxes.
a. Roller chain drive
b. Pintle chain drive
c. Bead chain drive
d. None of the above
Roller chain drive
Chain size is usually specified in terms
of ___.
a. diameter of roller chain
b. length of chain
c. roller chain number
d. None of the above
roller chain number
RC-50 chain is stronger than ___.
a. RC-60
b. RC-40
c. RC-70
d. None of the above
RC-40
The minimum size of chain for the
transmission box of a walking-type hand
tractor.
a. ANSI chain number 40
b. ANSI chain number 50
c. ANSI chain number 60
d. All of the above
ANSI chain number 50
The slack strand for chain with
horizontal center should be located at
the ___.
a. upper side
b. lower side
c. both sides
d. None of the above
lower side
If roller chain number 40 is to be
replaced with no. 60, the strength of the
chain will___.
a. decrease
b. increase
c. remain except the size
d. None of the above
increase
For slow-speed operation, the
recommended number of teeth for driver
sprocket is ___.
a. 11 teeth
b. 16 teeth
c. 24 teeth
d. None of the above
16 teeth
The recommended minimum number of
sprocket teeth for high-speed operation.
a. 14-16 teeth
b. 18-24 teeth
c. 28-30 teeth
d. None of the above
18-24 teeth
If the chain pitch is 12.7 mm, what is the
length of the chain needed for the drive in
Item above?
a. 100 pitches
b. 120 pitches
c. 140 pitches
d. None of the above
140 pitches
The length of chains is usually expressed
in ___.
a. inches
b. meters
c. pitches
d. None of the above
pitches
Which of the following is not a
part of the roller chain
construction?
a. Rollers
b. Pins
c. Outside link plates
d. Inside link plates
e. None of the above
f. All of the above
NOTA
It is connecting link assembly for
easy and rapid replacement of parts
of chain drive.
a. Pin link
b. Link plate
c. Retainer
d. All of the above
e. Two of the above
AOTA
Pitch length of roller chain number
35.
a. 1/4 in.
b. 3/8 in.
c. 1/2 in.
d. 1 in.
e. None of the above
3/8 in.
Pitch length of roller chain 25.
a. 1/4 in.
b. 3/8 in.
c. 1/2 in.
d. 1 in.
e. None of the above
1/4 in.
Pitch length of RC 40.
a. 1/4 in.
b. 3/8 in.
c. 1/2 in.
d. 1 in.
e. None of the above
1/2 in.