Machine Drawing

146 Machine Drawing

dharm
d:\N-Design\Des9-1.pm5 Seventh Print

9.2.2.1. Step Cone Pulley (for V-belt )

The principle and the purpose for which a step cone pulley for V-belt drive is used are the same

as those associated with the step cone pulley for flat belt. Figure 9.6 shows a cone pulley for

V-belt with four steps.

ff^2525

f 80

40° SET SCREW,

M8

552020

5 45° ́

f

40

10

f

50

(a)

KEYWAY, 6 3 ́

(b)

4 HOLES, DIA 36 ON PCD 125

5 5

70

f

25

f

50

22

f

36

(^1825)
f

250

(^10) 40° 5

78

Fig. 9.5 V-belt pulleys