Problems
A 16-pitch pinion having 24 teeth mates with a 16-pitch
gear having 45 teeth. The outside diameter of the pinion
is 1.625 in. The outside diameter of the gear is 2.938 in.
The center distance is 2.281 in.
Sousing Dimensions
The gear pair described in Problem 20 is to be installed in
a rectangular housing. Specify the dimensions X and Y as
sketched in Figure P8-33 that would provide a minimum
clearance of 0.10 in.
Repeat Problem 33 for the data of Problem 23.
Repeat Problem 33 for the data of Problem 26, but make
the clearance 2.0 mm.
Repeat Problem 33 for the data of Problem 27, but make
the clearance 2.0 mm.
URE P8-33 (Problems 33, 34, 35, and 36)
lysis of Simple Gear Trains
gear trains sketched in the given figures, compute the
speed and the direction of rotation of the output shaft if
put shaft rotates at 1750 rpm clockwise.
38. Use Figure P8-38.
Input A
B
Output
C
FIGURE P8-38
39. Use Figure P8-39.
NA = 22
N=30
Nc68
ND = 25
NE = 68
NA-20. P-16
D = 2.875 in
F
Dc- 1.125 in
B
ND-38. P 16
Ng-18. P-12
D-2.25 in
D
E
Output
Input
FIGURE P839
40. Use Figure P8-40.
NA = 18
Ng- 42
Input
NC 18
URE P8-37
ND=54
NE = 24
N-54
C
F Output
No-18. P-12
N= 30
NA=80
C
Ng24
Nc=60
ND 18
Input
DOutput
FIGURE P8-40
