144 Machine Drawing
dharm
d:\N-Design\Des9-1.pm5 Seventh Print
35
X-X
5 15
f
90
f
80
f 20
f 40
KEYWAY, 6 3 ́
X
X
Fig. 9.2 Pulley with web
KEYWAY,
63 ́
4040
(^555570)
85
12030
8
8
160 10
40
40
40
f 30
(a)
R55
R70
f
80
40 40 40 40
f
60
f
170
(b)
f 30
KEYWAY, 6 3 ́
Fig. 9.3 Step cone pulley for flat belt drive