Machine Drawing

198 Machine Drawing

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d:\N-Design\Des13-1.pm5

Shaftdia.

L

f

D

a D

D

d

Shaft

dia

B

Tw

Tr

L

D+2a

DdDDa Hubdia

Fig.13.14 Worm and worm gear

Shaft dia.

B

Centredistance

D

1

D

2

Shaft dia.

Hub dia.

L

90°

Fig. 13.15 Worm gearing